MultiBinding 实现动态传入参数 Combox选择性显示数据

XAML:

 <Grid x:Name="LayoutRoot">
             
        <ComboBox HorizontalAlignment="Left" Text="Name" Name="CbBz" Margin="31,171,0,0" VerticalAlignment="Top" Width="120"/>

        <ComboBox x:Name="Cm" HorizontalAlignment="Left" Margin="31,214,0,0" VerticalAlignment="Top" Width="120">
            <ComboBox.ItemsSource>
                <MultiBinding  Converter="{StaticResource MulitConvert}">
                    <Binding />
                    <Binding ElementName="CbBz" Path="Text"/>
                </MultiBinding>
            </ComboBox.ItemsSource>
        </ComboBox>
        
 </Grid>

 

CS:

  public class MulitConvert : IMultiValueConverter

    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            List<Student> Lt = (List<Student>)values[0];

            switch (values[1].ToString())
            {
                case "Name":
                    var v = from n in Lt select n.Name;
                    return v;

                case "Age":
                    return from n in Lt select n.Age;
            }

            return new object();
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

 

                List<Student> Lt = new List<Student>();

                CbBz.Items.Add("Name");
                CbBz.Items.Add("Age");

                Student S1 = new Student();
                S1.Name = "张飞";
                S1.Age = 1000;

                Student S2 = new Student();
                S2.Name = "赵云";
                S2.Age = 2000;

                Student S3 = new Student();
                S3.Name = "刘备";
                S3.Age = 3000;

                Lt.Add(S1);
                Lt.Add(S2);
                Lt.Add(S3);

                LayoutRoot.DataContext = Lt;