2011-07-01 49 views
1

我正在創建基本風格。我正在使用繼承來實現我的基礎樣式。我知道如何在派生類中添加屬性,但我不知道如何更改屬性。我給大家舉一個例子:更改「super/base」風格的屬性wpf

讓的說我有這樣的基本樣式:

 <!-- SrollViewer ScrollBar Repeat Buttons (at each end) --> 
    <Style x:Key="ScrollBarLineButton" TargetType="{x:Type RepeatButton}"> 
     <Setter Property="SnapsToDevicePixels" Value="True"/> 
     <Setter Property="OverridesDefaultStyle" Value="true"/> 
     <Setter Property="Focusable" Value="false"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type RepeatButton}"> 
        <Border 
         Name="Border" 
         Margin="1" 
         CornerRadius="2" 
         Background="WhiteSmoke"   
         BorderThickness="1"> 
         <Image Stretch="Uniform" Source="/FilesPro;component/Images/scrollArrow.png" Height="40" VerticalAlignment="Center" HorizontalAlignment="Center" Width="52" > 
          <Image.RenderTransform> 
           <TransformGroup> 
            <ScaleTransform ScaleY="-1" /> 
            <TranslateTransform Y="40"/> 
            <SkewTransform/> 
            <RotateTransform/> 
            <TranslateTransform/> 
           </TransformGroup> 
          </Image.RenderTransform> 
         </Image> 
         <!-- 
         <Path 
          HorizontalAlignment="Center" 
          VerticalAlignment="Center" 
          Fill="{StaticResource GlyphBrush}" 
          Data="{Binding Path=Content, 
           RelativeSource={RelativeSource TemplatedParent}}" > 
         </Path> 
         --> 
        </Border> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 

    </Style> 

我想創建一個具有相同的屬性ScrollBarLineButton但與圖像transfrom的scaleY = 1而不是一種新的風格爲-1。

當我這樣做:

 <Style x:Key="ScrollBarLineButtonVerticalUp" BasedOn="{StaticResource ScrollBarLineButton}" TargetType="{x:Type RepeatButton}"> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type RepeatButton}"> 
        <Border>        
         <Image Stretch="Uniform" Source="/FilesPro;component/Images/scrollArrow.png" Height="40" VerticalAlignment="Center" HorizontalAlignment="Center" Width="52" > 
          <Image.RenderTransform> 
           <TransformGroup> 
            <ScaleTransform ScaleY="1" /> 
            .... 
            ... 

邊界不再有其基本樣式保證金,背景顏色等。我怎麼會從風格繼承,只是改變一個屬性。我知道我可以複製粘貼,但是我會改變這一點,如果我在一個地方改變了它,所有其他地方都會改變,這很方便。

回答

5

您可以創建一個DynamicResource參考做這樣的事情,在這裏有一個例子:

<StackPanel> 
    <StackPanel.Resources> 
     <Style x:Key="ButtonStyleA" TargetType="{x:Type Button}"> 
      <Style.Resources> 
       <SolidColorBrush x:Key="TextBrush" Color="Yellow" /> 
      </Style.Resources> 
      <Setter Property="Template"> 
       <Setter.Value> 
        <ControlTemplate TargetType="{x:Type Button}"> 
         <Border CornerRadius="10" BorderThickness="1" BorderBrush="Red"> 
          <ContentPresenter TextElement.Foreground="{DynamicResource TextBrush}"/> 
         </Border> 
        </ControlTemplate> 
       </Setter.Value> 
      </Setter> 
     </Style> 

     <Style x:Key="ButtonStyleB" TargetType="{x:Type Button}" BasedOn="{StaticResource ButtonStyleA}"> 
      <Style.Resources> 
       <SolidColorBrush x:Key="TextBrush" Color="Blue" /> 
      </Style.Resources> 
     </Style> 
    </StackPanel.Resources> 
    <Button Style="{StaticResource ButtonStyleA}" Content="Lorem Ipsum" /> 
    <Button Style="{StaticResource ButtonStyleB}" Content="Lorem Ipsum" /> 
</StackPanel> 

StyleBTextBrush被重寫它通過模板來改變,以及因爲它引用該資源。