WPF 动态更换模板详解编程语言

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:模板选择器" Title="MainWindow" Height="350" Width="525" Window.Resources local:MyDataTemplateSelector x:Key="tmpdog" /local:MyDataTemplateSelector DataTemplate x:Key="dta" Border BorderThickness="2" BorderBrush="red" Background="GreenYellow" StackPanel Orientation="Horizontal" TextBlock Text="{Binding Name}" Margin="10" /TextBlock TextBlock Text="{Binding ID}" Margin="10" /TextBlock /StackPanel /Border /DataTemplate DataTemplate x:Key="dtb" DataType="ListBox" Border BorderThickness="1" BorderBrush="Blue" Background="LightBlue" Padding="5" StackPanel Orientation="Horizontal" TextBlock Text="{Binding Name}" Margin="10" /TextBlock TextBlock Text="{Binding ID}" Margin="10" /TextBlock /StackPanel /Border /DataTemplate /Window.Resources Grid Grid.RowDefinitions RowDefinition Height="*" /RowDefinition RowDefinition Height="Auto" /RowDefinition /Grid.RowDefinitions ListBox Name="listbox" ItemTemplateSelector="{StaticResource tmpdog}" /ListBox Button Grid.Row="1" Width="75" Height="23" Click="Button_Click" 确定 /Button /Grid /Window

using System; 

using System.Collections.Generic; 

using System.Linq; 

using System.Text; 

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.Navigation; 

using System.Windows.Shapes; 

namespace 模板选择器 

 /// summary 

 /// MainWindow.xaml 的交互逻辑 

 /// /summary 

 public partial class MainWindow : Window 

 public MainWindow() 

 InitializeComponent(); 

 InitData(); 

 listbox.ItemsSource = list; 

 public List Student list { get; set; } 

 public void InitData() 

 Random r = new Random(); 

 list = new List Student 

 for (int i = 0; i i++) 

 list.Add(new Student 

 Name = "dog" + i, 

 ID = r.Next(100) 

 }); 

 int i = 0; 

 private void Button_Click(object sender, RoutedEventArgs e) 

 if (i%2==0) 

 listbox.SetResourceReference(ListBox.ItemTemplateProperty, "dta"); 

 else 

 listbox.SetResourceReference(ListBox.ItemTemplateProperty, "dtb"); 

 i++; 

 public class Student 

 public int ID 

 set; 

 get; 

 public string Name 

 set; 

 get; 

 public class MyDataTemplateSelector : DataTemplateSelector 

 public override DataTemplate SelectTemplate(object item, DependencyObject container) 

 var fe = container as FrameworkElement; 

 var obj = item as Student; 

 DataTemplate dt = null; 

 if (obj != null fe != null) 

 if (obj.ID 30) 

 dt = fe.FindResource("dta") as DataTemplate; 

 else 

 dt = fe.FindResource("dtb") as DataTemplate; 

 return dt; 

 

 

 

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/13170.html

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