前言,有许多同学在写WPF程序时在资源字典里加入了其它控件,但又想写事件来控制这个控件,但是资源字典没有CS文件,不像窗体XAML还有一个后台的CS文件,怎么办呢?
在工作时也遇到了这个问题,现在把它分享出来
比如说我们现在要写一个TabControl控件,在TabItem中有一个关闭按钮或其它按钮,这个按钮要能响应某个事件。
现在开始写资源字典里的 TabItem的样式,代码如下
<Style x:Key="TIStyle" TargetType="{x:Type TabItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TabItem}"> <Border x:Name="layout" BorderBrush="Gray" BorderThickness="1,1,1,0" Background="{TemplateBinding Background}" CornerRadius="3" Margin="2,0,2,0"> <Grid Height="20"> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="25"/> </Grid.ColumnDefinitions> <TextBlock TextAlignment="Center" Text="{TemplateBinding Header}" Grid.Column="0" Margin="4,0,3,0" VerticalAlignment="Center" HorizontalAlignment="Center"/> <Button Content="X" Grid.Column="1" Height="8" Width="8" Margin="4,1,3,2" Tag="{TemplateBinding Header}" Click="Button_Click" Background="{x:Null}" BorderBrush="{x:Null}" VerticalAlignment="Center"> <Button.Template> <ControlTemplate > <Grid> <Rectangle> <Rectangle.Fill> <VisualBrush> <VisualBrush.Visual> <Path x:Name="btnPath" Data="M0 0L10 10M0 10L10 0" Stroke="Gray" StrokeThickness="1"/> </VisualBrush.Visual> </VisualBrush> </Rectangle.Fill> </Rectangle> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter TargetName="btnPath" Property="Stroke" Value="Red"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Button.Template> </Button> </Grid> </Border> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="Background" Value="White"/> <Setter TargetName="layout" Property="Margin" Value="2,0,2,-1.5"/> </Trigger> <Trigger Property="IsSelected" Value="false"> <Setter Property="Background" Value="LightBlue"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
然后为资源字典建一个后台类DicEvent.cs
public partial class DicEvent : ResourceDictionary { public void Button_Click(object sender, RoutedEventArgs e) { //省去处理,如果显示,表明调用成功。 MessageBox.Show("你成功了!"); } }
在资源字典里,添加对后台类的引用
主窗口里调用:
<Window x:Class="WpfDicButton.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Grid> <TabControl> <TabItem Header="第一" Height=" 30" Style="{DynamicResource ResourceKey=TIStyle}"></TabItem> </TabControl> </Grid> </Window>
记住APP文件里加入资源字典
<Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="TabControlDictionary.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources>
测试,小功告成
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