在觸發器中更改XAML中的按鈕內容

Question

我正在嘗試製作一個模板，該模板將更改Button的背景以及其顏色爲TextBlock。我在我的模板中嘗試了以下XAML，但它只是使鼠標懸停上的按鈕消失。有沒有辦法改變觸發器上的按鈕內容的屬性？

   <ControlTemplate TargetType="{x:Type Button}"> 
       <Border 
         x:Name="Border" 
         CornerRadius="0" 
         BorderThickness="0" 
         Background="{x:Null}" 
         BorderBrush="#FF404040" /> 
        <ControlTemplate.Triggers> 
         <Trigger Property="IsMouseOver" Value="true"> 
          <Setter TargetName="Border" Property="Background" Value="White" /> 
          <Setter Property="ContentTemplate"> 
           <Setter.Value> 
            <DataTemplate DataType="TextBlock"> 
             <TextBlock Foreground="Blue" /> 
            </DataTemplate> 
           </Setter.Value> 
          </Setter> 
         </Trigger> 
        </ControlTemplate.Triggers> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 

Answer 1

風格：

<Style TargetType="{x:Type Button}" x:Key="MyButton"> 
    <Setter Property="OverridesDefaultStyle" Value="True" /> 
    <Setter Property="Template"> 
     <Setter.Value> 
      <ControlTemplate TargetType="{x:Type Button}"> 
       <Border x:Name="Border" 
         CornerRadius="0" 
         BorderThickness="{TemplateBinding BorderThickness}" 
         Background="{TemplateBinding Background}" 
         TextBlock.Foreground="{TemplateBinding Foreground}" 
         BorderBrush="#FF404040"> 
        <ContentPresenter Margin="2" 
             HorizontalAlignment="Center" 
             VerticalAlignment="Center" 
             RecognizesAccessKey="True" /> 
       </Border> 
       <ControlTemplate.Triggers> 
        <Trigger Property="IsMouseOver" Value="true"> 
         <Setter TargetName="Border" Property="Background" Value="White" /> 
         <Setter TargetName="Border" Property="TextBlock.Foreground" Value="Blue" /> 
        </Trigger> 
       </ControlTemplate.Triggers> 
      </ControlTemplate> 
     </Setter.Value> 
    </Setter> 
</Style> 

用法：

<Button Width="100" Height="50" Content="Lalala" Style="{StaticResource MyButton}" Background="Brown" Foreground="Green" BorderThickness="2"></Button> 

1. 你錯過了ContentPresenter，負責可視化的的Content財產Button。
2. 要設置前景，您可以使用TextBlock.Foreground附加屬性。
3. Control Styles and Templates一直非常有用的給我:)