■ 열거형을 정렬하는 방법을 보여준다.
▶ EnumerationTypeConverter.cs
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using System; using System.ComponentModel; using System.Globalization; using System.Linq; namespace TestProject { /// <summary> /// 열거형 타입 변환자 /// </summary> public class EnumerationTypeConverter : EnumConverter { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - EnumerationTypeConverter(enumerationType) /// <summary> /// 생성자 /// </summary> /// <param name="enumerationType">열거형 타입</param> public EnumerationTypeConverter(Type enumerationType) : base(enumerationType) { } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 변환하기 - ConvertTo(context, cultureInfo, value, targetType) /// <summary> /// 변환하기 /// </summary> /// <param name="context">타입 설명자 컨텍스트</param> /// <param name="cultureInfo">문화 정보</param> /// <param name="value">값</param> /// <param name="targetType">타겟 타입</param> /// <returns>설명</returns> public override object ConvertTo(ITypeDescriptorContext context, CultureInfo cultureInfo, object value, Type targetType) { if(targetType == typeof(string) && value != null) { Type enumerationType = value.GetType(); if(enumerationType.IsEnum) { return GetDescription(value); } } return base.ConvertTo(context, cultureInfo, value, targetType); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 설명 구하기 - GetDescription(value) /// <summary> /// 설명 구하기 /// </summary> /// <param name="value">값</param> /// <returns>설명</returns> private object GetDescription(object value) { DescriptionAttribute attribute = EnumType.GetField(value.ToString()) .GetCustomAttributes(typeof(DescriptionAttribute), false) .FirstOrDefault() as DescriptionAttribute; if(attribute != null) { return attribute.Description; } return Enum.GetName(EnumType, value); } #endregion } } |
▶ Country.cs
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using System.ComponentModel; namespace TestProject { /// <summary> /// 국가 /// </summary> [TypeConverter(typeof(EnumerationTypeConverter))] public enum Country : int { /// <summary> /// 호주 /// </summary> [Description("호주 (AUS)")] AUS = 0, /// <summary> /// 미국 /// </summary> [Description("미국 (USA)")] USA = 1, /// <summary> /// 영국 /// </summary> [Description("영국 (GBR)")] GBR = 2, /// <summary> /// 프랑스 /// </summary> [Description("프랑스 (FRA)")] FRA = 3, /// <summary> /// 독일 /// </summary> [Description("독일 (GER)")] GER = 4, /// <summary> /// 스페인 /// </summary> [Description("스페인 (ESP)")] ESP = 5, /// <summary> /// 자메이카 /// </summary> [Description("자메이카 (JAM)")] JAM = 6, /// <summary> /// 한국 /// </summary> [Description("한국 (KOR)")] KOR = 7, /// <summary> /// 우루과이 /// </summary> [Description("우루과이 (URU)")] URU = 8 } } |
▶ EnumerationHelper.cs
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Linq; using System.Reflection; namespace TestProject { /// <summary> /// 열거형 헬퍼 /// </summary> public class EnumerationHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 값으로 정렬하기 - SortByValue<TItem>(sourceList) /// <summary> /// 값으로 정렬하기 /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="sourceList">소스 리스트</param> /// <returns>값 정렬 리스트</returns> public static List<TItem> SortByValue<TItem>(List<TItem> sourceList) { List<string> itemList = new List<string>(); List<TItem> targetList = new List<TItem>(); foreach(TItem source in sourceList) { itemList.Add(source.ToString()); } itemList.Sort(); foreach(string item in itemList) { targetList.Add((TItem)Enum.Parse(typeof(TItem), item)); } return targetList; } #endregion #region 설명으로 정렬하기 - SortByDescription<TItem>(sourceList) /// <summary> /// 설명으로 정렬하기 /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="sourceList">소스 리스트</param> /// <returns>설명 정렬 리스트</returns> public static List<TItem> SortByDescription<TItem>(List<TItem> sourceList) { List<string> itemList = new List<string>(); List<TItem> targetList = new List<TItem>(); foreach(TItem source in sourceList) { itemList.Add(GetDescriptionFromValue<TItem>(source)); } itemList.Sort(); foreach(string item in itemList) { targetList.Add(GetValueFromDescription<TItem>(item)); } return targetList; } #endregion //////////////////////////////////////////////////////////////////////////////// Private #region 값에서 설명 구하기 - GetDescriptionFromValue<TItem>(value) /// <summary> /// 값에서 설명 구하기 /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="value">값</param> /// <returns>설명</returns> private static string GetDescriptionFromValue<TItem>(TItem value) { DescriptionAttribute attribute = value.GetType() .GetField(value.ToString()) .GetCustomAttributes(typeof(DescriptionAttribute), false) .SingleOrDefault() as DescriptionAttribute; return attribute == null ? value.ToString() : attribute.Description; } #endregion #region 설명에서 값 구하기 - GetValueFromDescription<TItem>(description) /// <summary> /// 설명에서 값 구하기 /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="description">설명</param> /// <returns>값</returns> private static TItem GetValueFromDescription<TItem>(string description) { Type type = typeof(TItem); if(!type.IsEnum) { throw new ArgumentException(); } FieldInfo[] fieldInfoArray = type.GetFields(); var attributeInfo = fieldInfoArray.SelectMany ( f => f.GetCustomAttributes(typeof(DescriptionAttribute), false), (f, a) => new { Field = f, Attribute = a } ) .Where(a => ((DescriptionAttribute)a.Attribute).Description == description) .SingleOrDefault(); return attributeInfo == null ? default(TItem) : (TItem)attributeInfo.Field.GetRawConstantValue(); } #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" Width="800" Height="600" Title="열거형 정렬하기" Background="#426aa1" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <Label HorizontalAlignment="Left"> 열거형 값으로 정렬 : </Label> <ComboBox Width="300" Height="25" IsEditable="False" ItemsSource="{Binding Path=DefaultCountryList}" /> <Label HorizontalAlignment="Left" Margin="0 10 0 0"> 국가 코드로 정렬 : </Label> <ComboBox Width="300" Height="25" IsEditable="False" ItemsSource="{Binding Path=CountryListSortedByValue}" /> <Label HorizontalAlignment="Left" Margin="0 10 0 0"> 국가명으로 정렬 : </Label> <ComboBox Width="300" Height="25" IsEditable="False" ItemsSource="{Binding Path=CountryListSortedByDescription}" /> </StackPanel> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System; using System.Collections.Generic; using System.Linq; using System.Windows; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 디폴트 국가 리스트 - DefaultCountryList /// <summary> /// 디폴트 국가 리스트 /// </summary> public List<Country> DefaultCountryList { get; set; } #endregion #region 값으로 정렬 국가 리스트 - CountryListSortedByValue /// <summary> /// 값으로 정렬 국가 리스트 /// </summary> public List<Country> CountryListSortedByValue { get; set; } #endregion #region 설명으로 정렬 국가 리스트 - CountryListSortedByDescription /// <summary> /// 설명으로 정렬 국가 리스트 /// </summary> public List<Country> CountryListSortedByDescription { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); SetList(); DataContext = this; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 리스트 설정하기 - SetList() /// <summary> /// 리스트 설정하기 /// </summary> private void SetList() { List<Country> defaultCountryList = Enum.GetValues(typeof(Country)).Cast<Country>().ToList(); DefaultCountryList = defaultCountryList; CountryListSortedByValue = EnumerationHelper.SortByValue(defaultCountryList); CountryListSortedByDescription = EnumerationHelper.SortByDescription<Country>(defaultCountryList); } #endregion } } |
