WPF：在某个控件的触发器中链接另一个控件的属性 [英] WPF : Chainging another control's property in some control's Trigger

问题描述

这是我的文本块。

 < Image x：Name：imgAnother /> 
 
< TextBlock> 
这是我的文本块
< TextBlock.Style> 
< Style TargetType = TextBlock> 
< Setter Property = TextDecorations Value = None /> 
< Style.Triggers> 
< Trigger Property = TextBlock.IsMouseOver Value = True> 
< Setter Property = Foreground Value = RoyalBlue /> 
<！-我想在这里插入代码来更改另一个控件的属性...--> 
< / Trigger> 
< Trigger Property = TextBlock.IsMouseOver Value = False> 
< Setter Property = Foreground Value =＃FF808080 /> 
<！-..这行也是.--> 
< / Trigger> 
< /Style.Triggers> 
< / Style> 
< /TextBlock.Style> 
< / TextBlock> 
  

我喜欢制作一个xaml代码，该代码可以更改另一个控件的属性，例如 imgAnother。 p>

我该怎么做？

解决方案

您必须汇总源代码并

您可以创建一个既包含超链接/文本块又包含图像的自定义控件。如果您在此示例中有多个行为块，那么这是首选方法。

如果您不喜欢这样。您可以按照以下方式创建临时匿名控件：

 < ControlTemplate x：Key = myCtl TargetType = ContentControl > 
< StackPanel> 
<图片x：Name = img /> 
< ContentPresenter x：Name = ctr /> 
< / StackPanel> 
 
< ControlTemplate.Triggers> 
< Trigger SourceName = ctr Property = IsMouseOver Value = True> 
< Setter TargetName = ctr Property = Foreground Value = RoyalBlue /> 
< ;!-我想在此处插入代码来更改另一个控件的属性...--> 
< / Trigger> 
< Trigger SourceName = ctr Property = IsMouseOver Value = False> 
< Setter TargetName = ctr Property = Foreground Value =＃FF808080 /> 
<！-..这行也是.--> 
< / Trigger> 
< /ControlTemplate.Triggers> 
< / ControlTemplate> 
  

以上xaml将驻留在Window的资源中。

注意：比起功能齐全的代码片段，这更像是要遵循的轨道！

在体内，您可以通过以下方式引用控件：

 < ContentControl模板= {StaticResource myCtl} Content =这是我的文字块 /> 
  

希望有帮助。

Here's my textblock.

    <Image x:Name:imgAnother/>

    <TextBlock>
        this is my text block
        <TextBlock.Style>
            <Style TargetType="TextBlock">
                <Setter Property="TextDecorations" Value="None"/>
                <Style.Triggers>
                    <Trigger Property="TextBlock.IsMouseOver" Value="True">
                        <Setter Property="Foreground" Value="RoyalBlue"/>
                        <!--I like to insert a code at here that changes another control's property...-->
                    </Trigger>
                    <Trigger Property="TextBlock.IsMouseOver" Value="False">
                        <Setter Property="Foreground" Value="#FF808080"/>
                        <!--..and this line too.-->
                   </Trigger>
                </Style.Triggers>                    
            </Style>
        </TextBlock.Style>
    </TextBlock>

I like to make a xaml code which can change another control's proerpty, like "imgAnother".

how can i do that?

解决方案

You must aggregate the source and the target in some way.

You may create either a custom control containing both the hyperlink/textblock and the image. That's the preferred way if you have several blocks that behaves in such example.

If you don't like this. You may create a "temporary" anonymous control as follows:

<ControlTemplate x:Key="myCtl" TargetType="ContentControl">
  <StackPanel>
    <Image x:Name="img"/>
    <ContentPresenter x:Name="ctr" />
  </StackPanel>

  <ControlTemplate.Triggers>
                    <Trigger SourceName="ctr" Property="IsMouseOver" Value="True">
                        <Setter TargetName="ctr" Property="Foreground" Value="RoyalBlue"/>
                        <!--I like to insert a code at here that changes another control's property...-->
                    </Trigger>
                    <Trigger SourceName="ctr" Property="IsMouseOver" Value="False">
                        <Setter TargetName="ctr" Property="Foreground" Value="#FF808080"/>
                        <!--..and this line too.-->
                   </Trigger>
  </ControlTemplate.Triggers>
</ControlTemplate>

The above xaml will reside in your Window's resources.

NOTE: it's much like a track to follow, than a fully functional snippet!

In the body, you may refer the control in such manner:

<ContentControl Template="{StaticResource myCtl}" Content="this is my text block" />

Hope it helps.

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