WPF中Converter的使用

WPF中Converter的用于对数据的转换。以下实例将实现将数据中的性别属性的转换（0：男，1：女）。

1、创建SexConverter.cs类，并实现IValueConverter接口

public class SexConverter : IValueConverter
{
    public object Convert(object value,Type targettype,object parameter,System.Globalization.CultureInfo culture)
    {
        string result = "";
        string sex = (string)value;
        if (sex == "0")
        {
            result = "男";
        }
        else if (sex == "1")
        {
            result = "女";
        }
        return result;
    }

    public object ConvertBack(object value,System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

2、在XAML页面中使用

<Window.Resources>
    <!--引用资源-->
    <converter:SexConverter x:Key="SexConverter"/>
        
    <Style targettype="ListBoxItem">
        <Setter Property="ContentTemplate">
            <Setter.Value>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding ID}" Width="60"/>
                        <TextBlock Text="{Binding Name}" Width="120"/>
                        <TextBlock Text="{Binding Sex,Converter={StaticResource SexConverter}}" Width="60"/>
                    </StackPanel>
                </DataTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>

<StackPanel>
    <ListBox x:Name="listBoxStudent" Margin="5"/>
</StackPanel>

后台代码

/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        List<Student> stuList = new List<Student>(){
            new Student(){ID="1",Name="Peter",Sex="0"},new Student(){ID="2",Name="Tom",Sex="1"},new Student(){ID="3",Name="Ben",Sex="0"}
        };

        this.listBoxStudent.ItemsSource = stuList;
    }

}

/// <summary>
/// 学生类
/// </summary>
public class Student{
    public string ID{get;set;}
    public string Name { get; set; }
    public string Sex { get; set; }
}