[C#/COMMON/.NET8] MemberNotNullWhenAttribute 클래스 : 해당 멤버 NOT NULL 보장하기
■ MemberNotNullWhenAttribute 클래스를 사용해 특정 멤버가 NOT NULL인 것을 보장하는 방법을 보여준다. ※ 조건부 not null 보장 : 특정 조건이 참일 때
[태그:] VALIDATION
[PYTHON/PYDANTIC] @field_validator 데코레이터 : 커스텀 검증 논리 추가하기
■ @field_validator 데코레이터를 사용해 커스텀 검증 논리를 추가하는 방법을 보여준다. ▶ 예제 코드 (PY)
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from pydantic import BaseModel from pydantic import Field from pydantic import field_validator class Joke(BaseModel): setup : str = Field(description = "question to set up a joke" ) punchline : str = Field(description = "answer to resolve the joke") # Pydantic을 사용하면 사용자 정의 검증 논리를 쉽게 추가할 수 있습니다. @field_validator("setup") def valiedateSetup(cls, field): if field[-1] != "?": raise ValueError("Badly formed question!") return field |
[PYTHON/LANGCHAIN] BaseModel 클래스 : 모델 클래스 만들기
■ BaseModel 클래스를 사용해 모델 클래스를 만드는 방법을 보여준다. ※ langchain>=0.0.267부터 LangChain을 사용하면 사용자가 Pydantic V1 또는 V2를 설치할 수 있다. ※
[PYTHON/PYDANTIC] Field 함수 : 모델 클래스에서 필수/선택 항목 설정하기
■ Field 함수를 사용해 모델 클래스에서 필수/선택 항목을 설정하는 방법을 보여준다. ▶ main.py
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from typing import Optional from pydantic import BaseModel, Field class Student(BaseModel): id : str = Field(... , description = "ID" ) # 필수 항목 name : str = Field(... , description = "성명") # 필수 항목 weight : Optional[int] = Field(None, description = "체중") # 선택 항목 student = Student(id = "ID1", name = "홍길동") field1 = Field(... , description = "ID" ) print(type(field1)) print(student) """ id='ID1' name='홍길동' weight=None """ |
▶ requirements.txt
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annotated-types==0.7.0 pydantic==2.7.4 pydantic_core==2.18.4 typing_extensions==4.12.2 |
※ pip install pydantic 명령을
[PYTHON/COMMON] pydantic 패키지 설치하기
■ pydantic 패키지를 설치하는 방법을 보여준다. 1. 명령 프롬프트를 실행한다. 2. 명령 프롬프트에서 아래 명령을 실행한다. ▶ 실행 명령
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pip install pydantic pip install "pydantic[email]" pip install "pydantic[dotenv]" pip install "pydantic[email,dotenv]" |
[PYTHON/PYDANTIC] BaseModel 클래스 : REST POST 요청 바디 검증하기
■ BaseModel 클래스를 사용해 REST POST 요청 바디를 검증하는 방법을 보여준다. ▶ main.py
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from fastapi import FastAPI, APIRouter from pydantic import BaseModel class TodoItem(BaseModel): id : int item : str todoItemList = [] apiRouter = APIRouter() @apiRouter.post("/todo") async def addTodoItem(todoItem : TodoItem) -> dict: todoItemList.append(todoItem) return {"message" : "Todo item added successfully"} @apiRouter.get("/todo") async def getTodoItemList() -> dict: return {"todoItemList" : todoItemList} fastAPI = FastAPI() @fastAPI.get("/") def root(): return {"message" : "Hello World"} @fastAPI.get("/home") def home(): return {"message" : "home"} fastAPI.include_router(apiRouter) |
▶ requirements.txt
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annotated-types==0.6.0 anyio==4.3.0 certifi==2024.2.2 click==8.1.7 dnspython==2.6.1 email_validator==2.1.1 exceptiongroup==1.2.1 fastapi==0.111.0 fastapi-cli==0.0.3 h11==0.14.0 httpcore==1.0.5 httptools==0.6.1 httpx==0.27.0 idna==3.7 itsdangerous==2.2.0 Jinja2==3.1.4 markdown-it-py==3.0.0 MarkupSafe==2.1.5 mdurl==0.1.2 orjson==3.10.3 pydantic==2.7.1 pydantic-extra-types==2.7.0 pydantic-settings==2.2.1 pydantic_core==2.18.2 Pygments==2.18.0 python-dotenv==1.0.1 python-multipart==0.0.9 PyYAML==6.0.1 rich==13.7.1 shellingham==1.5.4 sniffio==1.3.1 starlette==0.37.2 typer==0.12.3 typing_extensions==4.11.0 ujson==5.10.0 uvicorn==0.29.0 uvloop==0.19.0 watchfiles==0.21.0 websockets==12.0 |
▶ FastAPI 서버 실행 명령
[C#/WPF] ValidationRule 클래스 : 바인딩 항목 검증하기
■ ValidationRule 클래스를 사용해 바인딩 항목을 검증하는 방법을 보여준다. ▶ DateAndPriceRule.cs
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using System; using System.Globalization; using System.Windows.Controls; using System.Windows.Data; namespace TestProject { /// <summary> /// 일자/가격 규칙 /// </summary> public class DateAndPriceRule : ValidationRule { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(value, cultureInfo) /// <summary> /// 검증하기 /// </summary> /// <param name="value">값</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>검증 결과</returns> public override ValidationResult Validate(object value, CultureInfo cultureInfo) { BindingGroup bindingGroup = value as BindingGroup; PurchaseItem item = bindingGroup?.Items[0] as PurchaseItem; object priceObject; object offerExpiresObject; bool priceResult = bindingGroup.TryGetValue(item, "Price" , out priceObject ); bool offerExpiresResult = bindingGroup.TryGetValue(item, "OfferExpires", out offerExpiresObject); if(!priceResult || !offerExpiresResult) { return new ValidationResult(false, "Properties not found"); } double price = (double)priceObject; DateTime offerExpires = (DateTime)offerExpiresObject; if(price > 100) { if(offerExpires < DateTime.Today + new TimeSpan(7, 0, 0, 0)) { return new ValidationResult(false, "Items over $100 must be available for at least 7 days."); } } return ValidationResult.ValidResult; } #endregion } } |
▶ FutureDateRule.cs
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using System; using System.Globalization; using System.Windows.Controls; namespace TestProject { /// <summary> /// 미래 일자 규칙 /// </summary> internal class FutureDateRule : ValidationRule { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(value, cultureInfo) /// <summary> /// 검증하기 /// </summary> /// <param name="value">값</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>검증 결과</returns> public override ValidationResult Validate(object value, CultureInfo cultureInfo) { DateTime date; try { date = DateTime.Parse(value?.ToString()); } catch(FormatException) { return new ValidationResult(false, "Value is not a valid date."); } return DateTime.Now.Date > date ? new ValidationResult(false, "Please enter a date in the future.") : ValidationResult.ValidResult; } #endregion } } |
▶ PositivePriceRule.cs
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using System; using System.Globalization; using System.Windows.Controls; namespace TestProject { /// <summary> /// 양수 가격 규칙 /// </summary> public class PositivePriceRule : ValidationRule { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(value, cultureInfo) /// <summary> /// 검증하기 /// </summary> /// <param name="value">값</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>검증 결과</returns> public override ValidationResult Validate(object value, CultureInfo cultureInfo) { try { double price = Convert.ToDouble(value); if(price < 0) { return new ValidationResult(false, "Price must be positive."); } return ValidationResult.ValidResult; } catch(Exception) { return new ValidationResult(false, "Price must be a number."); } } #endregion } } |
▶ PurchaseItem.cs
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using System; using System.ComponentModel; namespace TestProject { /// <summary> /// 구매 항목 /// </summary> public class PurchaseItem : INotifyPropertyChanged, IEditableObject { //////////////////////////////////////////////////////////////////////////////////////////////////// Event ////////////////////////////////////////////////////////////////////////////////////////// Public #region 속성 변경시 - PropertyChanged /// <summary> /// 속성 변경시 /// </summary> public event PropertyChangedEventHandler PropertyChanged; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Struct ////////////////////////////////////////////////////////////////////////////////////////// Private #region 항목 데이터 - ItemData /// <summary> /// 항목 데이터 /// </summary> private struct ItemData { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Internal #region Field /// <summary> /// 설명 /// </summary> internal string Description; /// <summary> /// 제안 만기일 /// </summary> internal DateTime OfferExpires; /// <summary> /// 가격 /// </summary> internal double Price; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Internal #region 새 항목 구하기 - GetNewItem() /// <summary> /// 새 항목 구하기 /// </summary> /// <returns>새 항목</returns> internal static ItemData GetNewItem() { ItemData data = new ItemData { Description = "New item", Price = 0, OfferExpires = DateTime.Now + new TimeSpan(7, 0, 0, 0) }; return data; } #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 복사 데이터 /// </summary> private ItemData copyData = ItemData.GetNewItem(); /// <summary> /// 현대 데이터 /// </summary> private ItemData currentData = ItemData.GetNewItem(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 설명 - Description /// <summary> /// 설명 /// </summary> public string Description { get { return this.currentData.Description; } set { if(this.currentData.Description != value) { this.currentData.Description = value; FirePropertyChangedEvent("Description"); } } } #endregion #region 가격 - Price /// <summary> /// 가격 /// </summary> public double Price { get { return this.currentData.Price; } set { if(this.currentData.Price != value) { this.currentData.Price = value; FirePropertyChangedEvent("Price"); } } } #endregion #region 제안 만기일 - OfferExpires /// <summary> /// 제안 만기일 /// </summary> public DateTime OfferExpires { get { return this.currentData.OfferExpires; } set { if(value != this.currentData.OfferExpires) { this.currentData.OfferExpires = value; FirePropertyChangedEvent("OfferExpires"); } } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - PurchaseItem() /// <summary> /// 생성자 /// </summary> public PurchaseItem() { } #endregion #region 생성자 - PurchaseItem(description, price, offerExpires) /// <summary> /// 생성자 /// </summary> /// <param name="description">설명</param> /// <param name="price">가격</param> /// <param name="offerExpires">제안 만기일</param> public PurchaseItem(string description, double price, DateTime offerExpires) { Description = description; Price = price; OfferExpires = offerExpires; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 편집 시작하기 - BeginEdit() /// <summary> /// 편집 시작하기 /// </summary> public void BeginEdit() { this.copyData = this.currentData; } #endregion #region 편집 취소하기 - CancelEdit() /// <summary> /// 편집 취소하기 /// </summary> public void CancelEdit() { this.currentData = this.copyData; FirePropertyChangedEvent(""); } #endregion #region 편집 종료하기 - EndEdit() /// <summary> /// 편집 종료하기 /// </summary> public void EndEdit() { this.copyData = ItemData.GetNewItem(); } #endregion #region 문자열 구하기 - ToString() /// <summary> /// 문자열 구하기 /// </summary> /// <returns>문자열</returns> public override string ToString() => $"{Description}, {Price:c}, {OfferExpires:D}"; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 속성 변경시 이벤트 발생시키기 - FirePropertyChangedEvent(propertyName) /// <summary> /// 속성 변경시 이벤트 발생시키기 /// </summary> /// <param name="propertyName">속성명</param> private void FirePropertyChangedEvent(string propertyName) { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); } #endregion } } |
▶
[C#/WPF] IDataErrorInfo 인터페이스 : 커스텀 객체에 대한 검증 로직 구현하기
■ IDataErrorInfo 인터페이스를 사용해 커스텀 객체에 대한 검증 로직을 구현하는 방법을 보여준다. ▶ Person.cs
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using System.ComponentModel; namespace TestProject { /// <summary> /// 사람 /// </summary> public class Person : IDataErrorInfo { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 나이 - Age /// <summary> /// 나이 /// </summary> public int Age { get; set; } #endregion #region 에러 - Error /// <summary> /// 에러 /// </summary> public string Error => null; #endregion #region 인덱서 - this[name] /// <summary> /// 인덱서 /// </summary> /// <param name="name">명칭</param> /// <returns>오류 메시지</returns> public string this[string name] { get { string result = null; if(name == "Age") { if(Age < 0 || Age > 150) { result = "Age must not be less than 0 or greater than 150."; } } return result; } } #endregion } } |
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="TestProject" FontFamily="나눔고딕코딩" FontSize="16"> <Window.Resources> <local:Person x:Key="PersonKey" /> <Style x:Key="ErrorTextBoxStyleKey" TargetType="TextBox"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=(Validation.Errors)[0].ErrorContent}" /> </Trigger> </Style.Triggers> </Style> </Window.Resources> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <TextBlock>Enter your age :</TextBlock> <TextBox Style="{StaticResource ErrorTextBoxStyleKey}" HorizontalAlignment="Left" Margin="0 10 0 0" Width="100" Height="25" VerticalContentAlignment="Center"> <TextBox.Text> <Binding Path="Age" Source="{StaticResource PersonKey}" ValidatesOnExceptions="True" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <DataErrorValidationRule /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> <TextBlock Margin="0 10 0 0">Mouse-over to see the validation error message.</TextBlock> </StackPanel> </Window> |
TestProject.zip
[C#/WPF] 바인딩 유효성 검사 구현하기
■ 바인딩 유효성 검사를 구현하는 방법을 보여준다. ▶ SampleData.cs
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namespace TestProject { /// <summary> /// 샘플 데이터 /// </summary> public class SampleData { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 나이 1 - Age1 /// <summary> /// 나이 1 /// </summary> public int Age1 { get; set; } #endregion #region 나이 2 - Age2 /// <summary> /// 나이 2 /// </summary> public int Age2 { get; set; } #endregion #region 나이 3 - Age3 /// <summary> /// 나이 3 /// </summary> public int Age3 { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SampleData() /// <summary> /// 생성자 /// </summary> public SampleData() { Age1 = 0; Age2 = 0; } #endregion } } |
▶ AgeRangeRule.cs
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using System; using System.Globalization; using System.Windows.Controls; namespace TestProject { /// <summary> /// 나이 범위 규칙 /// </summary> public class AgeRangeRule : ValidationRule { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 최소 - Minimum /// <summary> /// 최소 /// </summary> public int Minimum { get; set; } #endregion #region 최대 - Maximum /// <summary> /// 최대 /// </summary> public int Maximum { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(value, cultureInfo) /// <summary> /// 검증하기 /// </summary> /// <param name="value">값</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>검증 결과</returns> public override ValidationResult Validate(object value, CultureInfo cultureInfo) { int age = 0; try { if(((string)value).Length > 0) { age = int.Parse((string)value); } } catch(Exception exception) { return new ValidationResult(false, "Illegal characters or " + exception.Message); } if((age < Minimum) || (age > Maximum)) { return new ValidationResult(false, "Please enter an age in the range: " + Minimum + " - " + Maximum + "."); } return new ValidationResult(true, null); } #endregion } } |
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:TestProject" Width="900" Height="600" Title="TestProject" FontFamily="나눔고딕코딩" FontSize="16"> <Window.Resources> <local:SampleData x:Key="SampleDataKey" /> <ControlTemplate x:Key="ValidationTemplateKey"> <DockPanel> <TextBlock Margin="0 5 0 0" Foreground="Red" FontWeight="Bold"> ! </TextBlock> <AdornedElementPlaceholder /> </DockPanel> </ControlTemplate> <Style x:Key="ErrorTextBoxStyleKey" TargetType="{x:Type TextBox}"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=(Validation.Errors)[0].ErrorContent}" /> </Trigger> </Style.Triggers> </Style> </Window.Resources> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <TextBlock Margin="10" FontSize="18" FontWeight="Bold" Text="Enter a number between 21-130 or there will be a validation error :" /> <StackPanel Orientation="Horizontal"> <Label Margin="20 0 0 0" Target="{Binding ElementName=textBox1}"> TextBox with _custom ErrorTemplate and ToolTip : </Label> <TextBox Name="textBox1" Style="{StaticResource ErrorTextBoxStyleKey}" Validation.ErrorTemplate="{StaticResource ValidationTemplateKey}" Margin="10 0 0 0" Width="50" Height="25" VerticalContentAlignment="Center"> <TextBox.Text> <Binding Source="{StaticResource SampleDataKey}" Path="Age1" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <local:AgeRangeRule Minimum="21" Maximum="130" /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> </StackPanel> <StackPanel Orientation="Horizontal"> <Label Margin="20 0 0 0" Target="{Binding ElementName=textBox2}"> TextBox with _default ErrorTemplate : </Label> <TextBox Name="textBox2" Grid.Row="3" Grid.Column="1" Margin="10 0 0 0" Width="50" Height="25" VerticalContentAlignment="Center"> <TextBox.Text> <Binding Source="{StaticResource SampleDataKey}" Path="Age2" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <local:AgeRangeRule Minimum="21" Maximum="130" /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> </StackPanel> <TextBlock Margin="10" FontSize="18" FontWeight="Bold" Text="The following TextBox uses the ExceptionValidationRule and UpdateSourceExceptionFilter handler :" /> <StackPanel Orientation="Horizontal"> <Label Margin="20 0 0 0" Target="{Binding ElementName=textBox3}"> TextBox with UpdateSourceExceptionFilter _handler : </Label> <TextBox Name="textBox3" Style="{StaticResource ErrorTextBoxStyleKey}" Margin="10 0 0 0" Width="50" Height="25" Validation.ErrorTemplate="{StaticResource ValidationTemplateKey}" VerticalContentAlignment="Center"> <TextBox.Text> <Binding Source="{StaticResource SampleDataKey}" Path="Age3" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <ExceptionValidationRule /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> <CheckBox Name="checkBox" VerticalAlignment="Center" Margin="10 0 0 0"> Enable Custom Handler (see ToolTip) </CheckBox> </StackPanel> </StackPanel> </Window> |
▶ MainWindow.xaml.cs
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using System; using System.Windows; using System.Windows.Controls; using System.Windows.Data; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.checkBox.Checked += checkBox_Checked; this.checkBox.Unchecked += checkBox_Unchecked; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 체크 박스 체크시 처리하기 - checkBox_Checked(sender, e) /// <summary> /// 체크 박스 체크시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void checkBox_Checked(object sender, RoutedEventArgs e) { BindingExpression bindingExpression = this.textBox3.GetBindingExpression(TextBox.TextProperty); Binding parentBinding = bindingExpression.ParentBinding; parentBinding.UpdateSourceExceptionFilter = ReturnExceptionHandler; bindingExpression.UpdateSource(); } #endregion #region 체크 박스 체크 해제시 처리하기 - checkBox_Unchecked(sender, e) /// <summary> /// 체크 박스 체크 해제시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void checkBox_Unchecked(object sender, RoutedEventArgs e) { Binding binding = BindingOperations.GetBinding(this.textBox3, TextBox.TextProperty); binding.UpdateSourceExceptionFilter -= ReturnExceptionHandler; BindingExpression bindingExpression = BindingOperations.GetBindingExpression(this.textBox3, TextBox.TextProperty); bindingExpression.UpdateSource(); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 예외 반환 핸들러 - ReturnExceptionHandler(bindingExpression, exception) /// <summary> /// 예외 반환 핸들러 /// </summary> /// <param name="bindingExpression">바인딩 표현식</param> /// <param name="exception">예외</param> /// <returns>처리 결과</returns> private object ReturnExceptionHandler(object bindingExpression, Exception exception) => "This is from the UpdateSourceExceptionFilterCallBack."; #endregion } } |
TestProject.zip
[C#/WPF] ValidationRule 클래스 : 현재 날짜보다 미래 날짜 여부 검증하기
■ ValidationRule 클래스를 사용해 현재 날짜보다 미래 날짜 여부를 검증하는 방법을 보여준다. ▶ 예제 코드 (C#)
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using System; using System.Globalization; using System.Windows.Controls; /// <summary> /// 미래 날짜 규칙 /// </summary> public class FutureDateRule : ValidationRule { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(value, cultureInfo) /// <summary> /// 검증하기 /// </summary> /// <param name="value">값</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>검증 결과</returns> public override ValidationResult Validate(object value, CultureInfo cultureInfo) { DateTime date; try { date = DateTime.Parse(value.ToString()); } catch(FormatException) { return new ValidationResult(false, "Value is not a valid date. Please enter a valid date"); } if(DateTime.Now.Date > date) { return new ValidationResult(false, "Value is not a future date. Please enter a date in the future."); } return ValidationResult.ValidResult; } #endregion } |
[C#/COMMON/.NET6] IValidatableObject 인터페이스 : Validate 메소드를 사용해 객체 검증하기
■ IValidatableObject 인터페이스의 Validate 메소드를 사용해 객체를 검증하는 방법을 보여준다. ▶ Student.cs
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using System.ComponentModel.DataAnnotations; namespace TestProject; /// <summary> /// 학생 /// </summary> public class Student : IValidatableObject { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 이용 가능 여부 - Enabled /// <summary> /// 이용 가능 여부 /// </summary> [Required] public bool Enabled { get; set; } #endregion #region 등급 1 - Grade1 /// <summary> /// 등급 1 /// </summary> [Range(1, 5)] public int Grade1 { get; set; } #endregion #region 등급 2 - Grade2 /// <summary> /// 등급 2 /// </summary> [Range(1, 5)] public int Grade2 { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 검증하기 - Validate(context) /// <summary> /// 검증하기 /// </summary> /// <param name="context">검증 컨텍스트</param> /// <returns>검증 결과 열거 가능형</returns> public IEnumerable<ValidationResult> Validate(ValidationContext context) { List<ValidationResult> validationResultList = new List<ValidationResult>(); if(Enabled) { Validator.TryValidateProperty ( Grade1, new ValidationContext(this, null, null) { MemberName = "Grade1" }, validationResultList ); Validator.TryValidateProperty ( Grade2, new ValidationContext(this, null, null) { MemberName = "Grade2" }, validationResultList ); if(Grade1 > Grade2) { validationResultList.Add(new ValidationResult("Grade1은 Grade2보다 커야 합니다.")); } } return validationResultList; } #endregion } |
▶ Program.cs
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using System.ComponentModel.DataAnnotations; namespace TestProject; /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> private static void Main() { Student student = new Student() { Enabled = true, Grade1 = 15, Grade2 = 12 }; bool validateAllProperties = false; List<ValidationResult> validationResultList = new List<ValidationResult>(); bool isValid = Validator.TryValidateObject ( student, new ValidationContext(student, null, null), validationResultList, validateAllProperties ); if(!isValid) { foreach(ValidationResult validationResult in validationResultList) { Console.WriteLine(validationResult); } } } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] UriValidationBehavior 클래스 : 사용자 입력 URI 검증하기
■ UriValidationBehavior 클래스에서 사용자 입력 URI를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="URI를 입력해 주시기 바랍니다." /> </ContentPage> |
▶ MainPage.xaml.cs
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using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Style validStyle = new Style(typeof(Entry)); validStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Green }); Style invalidStyle = new Style(typeof(Entry)); invalidStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Red }); UriValidationBehavior behavior = new UriValidationBehavior { ValidStyle = validStyle, InvalidStyle = invalidStyle, Flags = ValidationFlags.ValidateOnValueChanged, UriKind = UriKind.Absolute }; this.entry.Behaviors.Add(behavior); } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] UriValidationBehavior 엘리먼트 : 사용자 입력 URI 검증하기
■ UriValidationBehavior 엘리먼트에서 사용자 입력 URI를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <ContentPage.Resources> <Style x:Key="ValidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Green" /> </Style> <Style x:Key="InvalidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Red" /> </Style> </ContentPage.Resources> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="URI를 입력해 주시기 바랍니다."> <Entry.Behaviors> <toolkit:UriValidationBehavior ValidStyle="{StaticResource ValidEntryStyleKey}" InvalidStyle="{StaticResource InvalidEntryStyleKey}" Flags="ValidateOnValueChanged" UriKind="Absolute" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] TextValidationBehavior 엘리먼트 : MinimumLength/MaximumLength 속성을 사용해 사용자 입력 문자열 길이 검증하기
■ TextValidationBehavior 엘리먼트의 MinimumLength/MaximumLength 속성을 사용해 사용자 입력 문자열 길이를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <ContentPage.Resources> <Style x:Key="ValidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Green" /> </Style> <Style x:Key="InvalidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Red" /> </Style> </ContentPage.Resources> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="값을 입력해 주시기 바랍니다."> <Entry.Behaviors> <toolkit:TextValidationBehavior ValidStyle="{StaticResource ValidEntryStyleKey}" InvalidStyle="{StaticResource InvalidEntryStyleKey}" Flags="ValidateOnValueChanged" MinimumLength="1" MaximumLength="10" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] RequiredStringValidationBehavior 클래스 : 사용자의 특정 텍스트 입력 여부 검증하기
■ RequiredStringValidationBehavior 클래스를 사용해 사용자의 특정 텍스트 입력 여부를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="값을 입력해 주시기 바랍니다." /> </ContentPage> |
▶ MainPage.xaml.cs
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using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Style validStyle = new Style(typeof(Entry)); validStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Green } ); Style invalidStyle = new Style(typeof(Entry)); invalidStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Red }); RequiredStringValidationBehavior behavior = new RequiredStringValidationBehavior { ValidStyle = validStyle, InvalidStyle = invalidStyle, Flags = ValidationFlags.ValidateOnValueChanged, RequiredString = "MAGIC ANSWER" }; this.entry.Behaviors.Add(behavior); } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] RequiredStringValidationBehavior 엘리먼트 : 사용자의 특정 텍스트 입력 여부 검증하기
■ RequiredStringValidationBehavior 엘리먼트를 사용해 사용자의 특정 텍스트 입력 여부를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <ContentPage.Resources> <Style x:Key="ValidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Green" /> </Style> <Style x:Key="InvalidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Red" /> </Style> </ContentPage.Resources> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="값을 입력해 주시기 바랍니다."> <Entry.Behaviors> <toolkit:RequiredStringValidationBehavior ValidStyle="{StaticResource ValidEntryStyleKey}" InvalidStyle="{StaticResource InvalidEntryStyleKey}" Flags="ValidateOnValueChanged" RequiredString="MAGIC ANSWER" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] NumericValidationBehavior 클래스 : 사용자 입력 숫자 검증하기
■ NumericValidationBehavior 클래스를 사용해 사용자 입력 숫자를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Keyboard="Numeric" Placeholder="값을 입력해 주시기 바랍니다." /> </ContentPage> |
▶ MainPage.xaml.cs
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using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Style validStyle = new Style(typeof(Entry)); validStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Green }); Style invalidStyle = new Style(typeof(Entry)); invalidStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Red }); NumericValidationBehavior behavior = new NumericValidationBehavior { ValidStyle = validStyle, InvalidStyle = invalidStyle, Flags = ValidationFlags.ValidateOnValueChanged, MinimumValue = 1.0, MaximumValue = 100.0, MaximumDecimalPlaces = 2 }; this.entry.Behaviors.Add(behavior); } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] NumericValidationBehavior 엘리먼트 : 사용자 입력 숫자 검증하기
■ NumericValidationBehavior 엘리먼트를 사용해 사용자 입력 숫자를 검증하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <ContentPage.Resources> <Style x:Key="ValidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Green" /> </Style> <Style x:Key="InvalidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Red" /> </Style> </ContentPage.Resources> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Keyboard="Numeric" Placeholder="값을 입력해 주시기 바랍니다."> <Entry.Behaviors> <toolkit:NumericValidationBehavior ValidStyle="{StaticResource ValidEntryStyleKey}" InvalidStyle="{StaticResource InvalidEntryStyleKey}" Flags="ValidateOnValueChanged" MinimumValue="1.0" MaximumValue="100.0" MaximumDecimalPlaces="2" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MultiValidationBehavior 클래스 : 복수 무결성 검사기 사용하기
■ MultiValidationBehavior 클래스를 사용해 복수 무결성 검사기를 사용하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" IsPassword="True" Placeholder="Password" /> </ContentPage> |
▶ MainPage.xaml.cs
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using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Style validStyle = new Style(typeof(Entry)); validStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Green }); Style invalidStyle = new Style(typeof(Entry)); invalidStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Red }); CharactersValidationBehavior bahavior1 = new CharactersValidationBehavior { CharacterType = CharacterType.Digit, MinimumCharacterTypeCount = 1, Flags = ValidationFlags.ValidateOnValueChanged }; MultiValidationBehavior.SetError(bahavior1, "숫자 최소 1문자"); CharactersValidationBehavior behavior2 = new CharactersValidationBehavior { CharacterType = CharacterType.UppercaseLetter, MinimumCharacterTypeCount = 1, Flags = ValidationFlags.ValidateOnValueChanged }; MultiValidationBehavior.SetError(behavior2, "대문자 최소 1문자"); CharactersValidationBehavior behavior3 = new CharactersValidationBehavior { CharacterType = CharacterType.NonAlphanumericSymbol, MinimumCharacterTypeCount = 1, Flags = ValidationFlags.ValidateOnValueChanged }; MultiValidationBehavior.SetError(behavior3, "기호 최소 1문자"); CharactersValidationBehavior behavior4 = new CharactersValidationBehavior { CharacterType = CharacterType.Any, MinimumCharacterTypeCount = 1, Flags = ValidationFlags.ValidateOnValueChanged }; MultiValidationBehavior.SetError(behavior4, "최소 8문자"); MultiValidationBehavior multipleBehavior = new MultiValidationBehavior { InvalidStyle = invalidStyle, ValidStyle = validStyle, Flags = ValidationFlags.ValidateOnValueChanged, Children = { bahavior1, behavior2, behavior3, behavior4 } }; this.entry.Behaviors.Add(multipleBehavior); } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MultiValidationBehavior 엘리먼트 : 복수 무결성 검사기 사용하기
■ MultiValidationBehavior 엘리먼트를 사용해 복수 무결성 검사기를 사용하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <ContentPage.Resources> <Style x:Key="InvalidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Red" /> </Style> <Style x:Key="ValidEntryStyleKey" TargetType="Entry"> <Setter Property="TextColor" Value="Green" /> </Style> </ContentPage.Resources> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" IsPassword="True" Placeholder="Password"> <Entry.Behaviors> <toolkit:MultiValidationBehavior ValidStyle="{StaticResource ValidEntryStyleKey}" InvalidStyle="{StaticResource InvalidEntryStyleKey}" Flags="ValidateOnValueChanged"> <toolkit:CharactersValidationBehavior CharacterType="Digit" MinimumCharacterTypeCount="1" toolkit:MultiValidationBehavior.Error="숫자 최소 1문자" /> <toolkit:CharactersValidationBehavior CharacterType="UppercaseLetter" MinimumCharacterTypeCount="1" toolkit:MultiValidationBehavior.Error="대문자 최소 1문자" /> <toolkit:CharactersValidationBehavior CharacterType="NonAlphanumericSymbol" MinimumCharacterTypeCount="1" toolkit:MultiValidationBehavior.Error="기호 최소 1문자" /> <toolkit:CharactersValidationBehavior CharacterType="Any" MinimumCharacterTypeCount="8" toolkit:MultiValidationBehavior.Error="최소 8문자" /> </toolkit:MultiValidationBehavior> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
TestProject.zip
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MaxLengthReachedBehavior 클래스 : Command 속성을 사용해 사용자가 최대 길이 입력시 처리하기
■ MaxLengthReachedBehavior 클래스의 Command 속성을 사용해 사용자가 최대 길이 입력시 처리하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" MaxLength="20" Placeholder="최대 길이로 입력할 때가 타이핑을 해주시기 바랍니다." /> </ContentPage> |
▶ MainPage.xaml.cs
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using System.Windows.Input; using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 최대 길이 도달시 명령 - MaximumLengthReachedCommand /// <summary> /// 최대 길이 도달시 명령 /// </summary> public ICommand MaximumLengthReachedCommand { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); MaximumLengthReachedCommand = new Command ( execute : async () => { await DisplayAlert("INFORMATION", "최대 길이까지 입력했습니다.", "확인"); } ); MaxLengthReachedBehavior behavior = new MaxLengthReachedBehavior(); behavior.SetBinding ( MaxLengthReachedBehavior.CommandProperty, new Binding(nameof(MaximumLengthReachedCommand)) ); this.entry.Behaviors.Add(behavior); BindingContext = this; } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MaxLengthReachedBehavior 엘리먼트 : Command 속성을 사용해 사용자가 최대 길이 입력시 처리하기
■ MaxLengthReachedBehavior 엘리먼트의 Command 속성을 사용해 사용자가 최대 길이 입력시 처리하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" MaxLength="20" Placeholder="최대 길이로 입력할 때가 타이핑을 해주시기 바랍니다."> <Entry.Behaviors> <toolkit:MaxLengthReachedBehavior Command="{Binding MaximumLengthReachedCommand}" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MainPage.xaml.cs
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using System.Windows.Input; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 최대 길이 도달시 명령 - MaximumLengthReachedCommand /// <summary> /// 최대 길이 도달시 명령 /// </summary> public ICommand MaximumLengthReachedCommand { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); MaximumLengthReachedCommand = new Command ( execute : async () => { await DisplayAlert("INFORMATION", "최대 길이까지 입력했습니다.", "확인"); } ); BindingContext = this; } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MaskedBehavior 클래스 : Mask 속성을 사용해 사용자 입력 마스크 설정하기 (프리뷰 버전 오류)
■ MaskedBehavior 클래스의 Mask 속성을 사용해 사용자 입력 마스크를 설정하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Entry x:Name="entry" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="계좌 번호를 입력해 주시기 바랍니다." Keyboard="Numeric" /> </ContentPage> |
▶ MainPage.xaml.cs
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using CommunityToolkit.Maui.Behaviors; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); MaskedBehavior behavior = new MaskedBehavior { Mask = "XXXX XXXX XXXX XXXX" }; this.entry.Behaviors.Add(behavior); } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
※
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MaskedBehavior 엘리먼트 : UnmaskedCharacter 속성을 사용해 사용자 지정 프롬프트 문자 설정하기 (프리뷰 버전 오류)
■ MaskedBehavior 엘리먼트의 UnmaskedCharacter 속성을 사용해 사용자 지정 프롬프트 문자를 설정하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="계좌 번호를 입력해 주시기 바랍니다." Keyboard="Numeric"> <Entry.Behaviors> <toolkit:MaskedBehavior Mask="0000X0000X0000X0000" UnmaskedCharacter="0" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
※ 프리뷰 버전
[C#/MAUI/COMMUNITY TOOLKIT/.NET6] MaskedBehavior 엘리먼트 : Mask 속성을 사용해 사용자 입력 마스크 설정하기 (프리뷰 버전 오류)
■ MaskedBehavior 엘리먼트의 Mask 속성을 사용해 사용자 입력 마스크를 설정하는 방법을 보여준다. ▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"> <Entry HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Yellow" Placeholder="계좌 번호를 입력해 주시기 바랍니다." Keyboard="Numeric"> <Entry.Behaviors> <toolkit:MaskedBehavior Mask="XXXX XXXX XXXX XXXX" /> </Entry.Behaviors> </Entry> </ContentPage> |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
※ 프리뷰 버전 테스트시,