■ ListView 클래스의 ItemsSource 속성에서 필터 처리한 컬렉션을 설정하는 방법을 보여준다.
※ 비주얼 스튜디오에서 TestProject(Unpackaged) 모드로 빌드한다.
※ TestProject.csproj 프로젝트 파일에서 WindowsPackageType 태그를 None으로 추가했다.
▶ Contact.cs
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namespace TestProject; /// <summary> /// 연락처 /// </summary> public class Contact { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 이름 - FirstName /// <summary> /// 이름 /// </summary> public string FirstName { get; private set; } #endregion #region 성 - LastName /// <summary> /// 성 /// </summary> public string LastName { get; private set; } #endregion #region 회사 - Company /// <summary> /// 회사 /// </summary> public string Company { get; private set; } #endregion #region 성명 - Name /// <summary> /// 성명 /// </summary> public string Name => $"{FirstName} {LastName}"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Contact(firstName, lastName, company) /// <summary> /// 생성자 /// </summary> /// <param name="firstName">이름</param> /// <param name="lastName">성</param> /// <param name="company">회사</param> public Contact(string firstName, string lastName, string company) { FirstName = firstName; LastName = lastName; Company = company; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 문자열 구하기 - ToString() /// <summary> /// 문자열 구하기 /// </summary> /// <returns>문자열</returns> public override string ToString() { return Name; } #endregion } |
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8"?> <Page x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="10"> <TextBox Name="filterTextBox" HorizontalAlignment="Left" Width="200" Header="Filter by Last Name" /> <ListView Name="listView" HorizontalAlignment="Center" Width="300" Height="300" BorderThickness="1" BorderBrush="DarkGray" Padding="5" /> </StackPanel> </Grid> </Page> |
▶ MainPage.xaml.cs
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using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Linq; using Microsoft.UI.Xaml.Controls; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 소스 연락처 리스트 /// </summary> private IList<Contact> sourceContactList = new List<Contact>(); /// <summary> /// 타겟 연락처 컬렉션 /// </summary> private ObservableCollection<Contact> targetContectCollection; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); this.sourceContactList.Add(new Contact("Kendall" , "Collins", "Adatum Corporation")); this.sourceContactList.Add(new Contact("Victoria", "Burke" , "Bellows College" )); this.sourceContactList.Add(new Contact("Preston" , "Morales", "Margie's Travel" )); this.sourceContactList.Add(new Contact("Miguel" , "Reyes" , "Tailspin Toys" )); this.targetContectCollection = new ObservableCollection<Contact>(this.sourceContactList); this.listView.ItemsSource = this.targetContectCollection; this.filterTextBox.TextChanged += filterTextBox_TextChanged; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 필터 텍스트 박스 텍스트 변경시 처리하기 - filterTextBox_TextChanged(sender, e) /// <summary> /// 필터 텍스트 박스 텍스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">"이벤트 인자></param> private void filterTextBox_TextChanged(object sender, TextChangedEventArgs e) { string filterString = (sender as TextBox).Text; IEnumerable<Contact> filteredContactEnumerable = this.sourceContactList.Where(contact => Filter(contact, filterString)); RemoveContactNotInFilteredContactEnumerable(filteredContactEnumerable); AddContactNotInTargetContactCollection(filteredContactEnumerable); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 필터 처리하기 - Filter(contact, filterString) /// <summary> /// 필터 처리하기 /// </summary> /// <param name="contact">연락처</param> /// <param name="filterString">필터 문자열</param> /// <returns>필터 처리 여부</returns> private bool Filter(Contact contact, string filterString) { return contact.LastName.Contains(filterString, StringComparison.InvariantCultureIgnoreCase); } #endregion #region 필터 연락처 열거 가능형에서 없는 연락처 제거하기 - RemoveContactNotInFilteredContactEnumerable(filteredContactEnumerable) /// <summary> /// 필터 연락처 열거 가능형에서 없는 연락처 제거하기 /// </summary> /// <param name="filteredContactEnumerable">필터 연락처 열거 가능형</param> private void RemoveContactNotInFilteredContactEnumerable(IEnumerable<Contact> filteredContactEnumerable) { for(int i = this.targetContectCollection.Count - 1; i >= 0; i--) { Contact targetContact = this.targetContectCollection[i]; if(!filteredContactEnumerable.Contains(targetContact)) { this.targetContectCollection.Remove(targetContact); } } } #endregion #region 타겟 연락처 컬렉션에 없는 연락처 추가하기 - AddContactNotInTargetContactCollection(filteredContactEnumerable) /// <summary> /// 타겟 연락처 컬렉션에 없는 연락처 추가하기 /// </summary> /// <param name="filteredContactEnumerable">필터 연락처 열거 가능형</param> private void AddContactNotInTargetContactCollection(IEnumerable<Contact> filteredContactEnumerable) { foreach(Contact filteredContact in filteredContactEnumerable) { if(!this.targetContectCollection.Contains(filteredContact)) { this.targetContectCollection.Add(filteredContact); } } } #endregion } |
