WPF/UWP 模板选择器 DataTemplateSelector

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace TestLoadPic
{
    /// <summary>
    /// Interaction logic for TestTemplateSelectorWind.xaml
    /// </summary>
    public partial class TestTemplateSelectorWind : Window
    {
        public TestTemplateSelectorWind()
        {
            InitializeComponent();
            LoadData();
            lb.ItemsSource = list;
        }
        public List<Person> list { get; set; }

        public void LoadData()
        {
            Random r = new Random();
            list = new List<Person>();
            for (int i = 0; i < 10; i++)
            {

                int rnd=r.Next(100);
                string sex="男";
                if(rnd>50){
                   sex="女";
                }

                list.Add(new Person
                {
                    name = "张三" + i,
                     sex=sex,
                    age = rnd

                    
                });

            }
        }
    }


    public class Person
    {
        public string name { get; set; }
        public int age { get; set; }
        public string  sex { get; set; }



    }



    public class MyDataTemplateSelector : DataTemplateSelector
    {
    
        public override DataTemplate SelectTemplate(object item, DependencyObject container)
        {

            var fe = container as FrameworkElement;
            var obj = item as Person;
            DataTemplate dt = null;
            if (obj != null && fe != null)
            {
                if (obj.age > 50)
                    dt = fe.FindResource("one") as DataTemplate;
                else
                    dt = fe.FindResource("two") as DataTemplate;

            }
            return dt;
        }


    }




}

　　

UI:

 

<Window x:Class="TestLoadPic.TestTemplateSelectorWind"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:TestLoadPic"
        Title="TestTemplateSelectorWind" Height="448.495" Width="547.826">
    <Window.Resources>
        <local:MyDataTemplateSelector  x:Key="mydt"></local:MyDataTemplateSelector>
        <DataTemplate x:Key="one">
            <Border BorderThickness="2" BorderBrush="red" Background="AliceBlue">
                <StackPanel Orientation="Horizontal" Name="skp" >
                    <TextBlock Text="{Binding name}" Margin="10"></TextBlock>
                    <TextBlock Text="{Binding age}" Margin="10"></TextBlock>
                    <TextBlock Text="{Binding sex}" Margin="10"></TextBlock>
                </StackPanel>
            </Border>
            <DataTemplate.Triggers> <!--男性背景色设置为绿色-->
                <DataTrigger  Value="男" Binding="{Binding Path=sex}">
                    <Setter TargetName="skp" Property="Background" Value="Green" />
                </DataTrigger>
            </DataTemplate.Triggers>
        </DataTemplate>
        <DataTemplate x:Key="two" >
            <Border BorderThickness="1" BorderBrush="Blue" Background="YellowGreen" Padding="5" >
                <StackPanel Orientation="Horizontal">
                    <TextBlock Text="{Binding name}"  Margin="10"></TextBlock>
                    <TextBlock Text="{Binding age}" Margin="10"></TextBlock>
                    <TextBlock Text="{Binding sex}" Margin="10"></TextBlock>
                </StackPanel>
            </Border>
        </DataTemplate>
    </Window.Resources>
    <Grid>
        <ListBox Name="lb" ItemTemplateSelector="{StaticResource mydt}">

        </ListBox>
    </Grid>
</Window>