2013-07-22 76 views
1

我试图创建一个大多不透明的GridSplitter,然后在mouseover上使动画变得完全可见。以下是我已经试过:在GridSplitter中使用数据触发器

风格:

<Style x:Key="SplitterStyle" TargetType="{x:Type GridSplitter}"> 
    <Setter Property="Opacity" Value="0.2" /> 
    <Setter Property="Template"> 
    <Setter.Value> 
     <ControlTemplate TargetType="{x:Type GridSplitter}"> 
     <ControlTemplate.Triggers> 
      <Trigger Property="IsMouseOver" Value="True"> 
      <Trigger.EnterActions> 
       <BeginStoryboard> 
       <Storyboard> 
        <DoubleAnimation Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:0.2" /> 
       </Storyboard> 
       </BeginStoryboard> 
      </Trigger.EnterActions> 
      <Trigger.ExitActions> 
       <BeginStoryboard> 
       <Storyboard> 
        <DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0.3" /> 
       </Storyboard> 
       </BeginStoryboard> 
      </Trigger.ExitActions> 
      </Trigger> 
     </ControlTemplate.Triggers> 
     </ControlTemplate> 
    </Setter.Value> 
    </Setter> 
</Style> 

GridSplitter

<GridSplitter 
    ResizeDirection="Columns" 
    Grid.Column="0" 
    Background="Red" 
    VerticalAlignment="Stretch" 
    Width="4" 
    Style="{StaticResource SplitterStyle}" /> 

我查MSDN和GridSplitter拥有所有我使用性质的,所以它看起来像它应该没问题,但也许我忽略了一些明显的东西?

编辑:

是否有可能把GridSplitter到另一个元素?我改变了我的风格:

<Style x:Key="SplitterStyle" TargetType="{x:Type Border}"> 
    <Setter Property="Opacity" Value="0.2" /> 

    <Style.Triggers> 
     <Trigger Property="IsMouseOver" Value="True"> 
      <Trigger.EnterActions> 
       <BeginStoryboard> 
        <Storyboard> 
         <DoubleAnimation Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:0.2" /> 
        </Storyboard> 
       </BeginStoryboard> 
      </Trigger.EnterActions> 
      <Trigger.ExitActions> 
       <BeginStoryboard> 
        <Storyboard> 
         <DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0.3" /> 
        </Storyboard> 
       </BeginStoryboard> 
      </Trigger.ExitActions> 
     </Trigger> 
    </Style.Triggers> 
</Style> 

然后,我把GridSplitter到边境和应用该样式的边界,而不是:

<Border 
    Style="{StaticResource SplitterStyle}" 
    Background="{StaticResource WindowBorderBrush}" 
    VerticalAlignment="Stretch" 
    Width="4" 
    Grid.Column="0" 
    HorizontalAlignment="Right"> 
    <GridSplitter ResizeDirection="Columns" Background="Red" ResizeBehavior="CurrentAndNext"/> 
</Border> 

边框的伟大工程!但是现在,GridSplitter无处可寻(红色背景没有显示,当我将鼠标悬停在边界上时,光标不会改变,并且没有任何东西可以拖动来调整任何东西)。为什么是这样?

编辑:

OK,我发现我已经指定GridSplitter的宽度。此外,我将GridSplitter的背景更改为透明,因为我从未计划使用红色。现在,它显示并看起来很棒,但它实际上并没有调整任何东西:P如何让它实际上有用?

回答

2

这是我结束了,它的工作:

<Style x:Key="SplitterStyle" TargetType="{x:Type GridSplitter}"> 
    <Setter Property="Opacity" Value="0.2" /> 

    <Style.Triggers> 
     <Trigger Property="IsMouseOver" Value="True"> 
      <Trigger.EnterActions> 
       <BeginStoryboard> 
        <Storyboard> 
         <DoubleAnimation Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:0.2" /> 
        </Storyboard> 
       </BeginStoryboard> 
      </Trigger.EnterActions> 
      <Trigger.ExitActions> 
       <BeginStoryboard> 
        <Storyboard> 
         <DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0.3" /> 
        </Storyboard> 
       </BeginStoryboard> 
      </Trigger.ExitActions> 
     </Trigger> 
    </Style.Triggers> 
</Style> 

<GridSplitter 
    Background="{StaticResource WindowBorderBrush}" 
    VerticalAlignment="Stretch" 
    Width="4" 
    Grid.Column="0" 
    ResizeDirection="Columns" 
    Style="{StaticResource SplitterStyle}" /> 

我以为我想正是这样至少有一次甚至张贴在第一时间之前,但我想不会。无论如何,它现在效果很好。