前言：

在ComboBox绑定ItemsSource时候，在绑定枚举时候，我们通常是采用定义一个列表，然后一个显示和值进行分开,这样显得比较麻烦，下面进行对这部分进行封装。

        private List<Tuple<string, FruitsEnum>> fruitList = new(){new Tuple<string, FruitsEnum> ("苹果",FruitsEnum.Apple ),new Tuple<string, FruitsEnum> ("香蕉",FruitsEnum.Banana ),new Tuple<string, FruitsEnum> ("橙子",FruitsEnum.Orange ),new Tuple<string, FruitsEnum> ("芒果",FruitsEnum.Mango ),new Tuple<string, FruitsEnum> ("葡萄",FruitsEnum.Grapes ),new Tuple<string, FruitsEnum> ("西瓜",FruitsEnum.Watermelon )};public List<Tuple<string, FruitsEnum>> FruitList{get => fruitList;}

封装代码

1.EnumerationMember.cs

    public class EnumerationMember{public string Description { get; set; }public object Value { get; set; }}

2.EnumerationExtension.cs

    [MarkupExtensionReturnType(typeof(EnumerationMember[]))]public class EnumerationExtension : MarkupExtension{private Type enumType;public Type EnumType{get=> enumType;set{if (enumType == value) return;var enumTypeTemp = Nullable.GetUnderlyingType(value) ?? value;if (enumTypeTemp.IsEnum == false) throw new ArgumentException("Type must be an Enum.");enumType = enumTypeTemp;}}private static ConcurrentDictionary<Type, EnumerationMember[]> Enums { get; } = new ConcurrentDictionary<Type, EnumerationMember[]>();public static EnumerationMember[] GetEnums(Type typez){return Enums.GetOrAdd(typez, (type) =>{var enumValues = Enum.GetValues(type);return (from object enumValue in enumValuesselect new EnumerationMember{Value = enumValue,Description = GetDescription(type, enumValue)}).ToArray();});}private static string GetDescription(Type enum_type, object enumValue){var descriptionAttribute = enum_type.GetField(enumValue.ToString()).GetCustomAttributes(typeof(DescriptionAttribute), false).FirstOrDefault() as DescriptionAttribute;return descriptionAttribute != null? descriptionAttribute.Description: enumValue.ToString();}public override object ProvideValue(IServiceProvider serviceProvider){return GetEnums(EnumType);}}

使用:

1.FruitsEnum.cs

    public enum FruitsEnum{[Description("苹果")]Apple,[Description("香蕉")]Banana,[Description("橙子")]Orange,[Description("芒果")]Mango,[Description("葡萄")]Grapes,[Description("西瓜")]Watermelon,[Description("菠萝")]Pineapple,[Description("草莓")]Strawberry,[Description("蓝莓")]Blueberry,[Description("覆盆子")]Raspberry}

2.MainWindow.xaml

<Windowx:Class="WPFApp.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:local="clr-namespace:WPFApp"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"Title="MainWindow"Width="800"Height="450"mc:Ignorable="d"><Window.DataContext><local:MainWindowViewModel /></Window.DataContext><Grid><StackPanel><ComboBoxDisplayMemberPath="Description"ItemsSource="{local:Enumeration EnumType={x:Type local:FruitsEnum}}"SelectedValue="{Binding Fruits, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"SelectedValuePath="Value" /></StackPanel></Grid>
</Window>

3.MainWindowViewModel.cs

using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace WPFApp
{public class MainWindowViewModel : BindableBase{private FruitsEnum fruits;public FruitsEnum Fruits{get => fruits;set => SetProperty(ref fruits, value);}}
}