用鼠标点击WPF中的toggleButton时出现问题

我制作了一个自定义控件模板，可以将一个groupbox变成一个扩展器（点击标题展开/折叠groupbox的内容）。它工作正常，但鼠标点击并不总是通过：有时它不会展开/折叠，当你点击标题，特别是。当你点击“颜色”一词中的“o”时。我有机地认为这是由标题捕捉鼠标点击，这阻止他们通过的文本引起的，所以我玩弄了IsHitTestVisible和IsFocusable属性的内容头等，这似乎没有任何效果。只包含空字符串或甚至没有内容的头文件似乎具有相同的问题。用鼠标点击WPF中的toggleButton时出现问题

该XAML张贴如下。

（顺便说一句，这post果然膨胀成组框似乎有类似的问题：如果单击箭头右内，切换按钮不会切换。）

<Window x:Class="TestCollapsibleGroupBoxStyle.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"> 
<Window.Resources> 

    <BooleanToVisibilityConverter x:Key="boolToVizConverter"/> 

    <Color x:Key="HyperlinkHoverBlue">#FF0088CC</Color> 
    <SolidColorBrush x:Key="HyperlinkHoverBlueBrush" Color="{StaticResource HyperlinkHoverBlue}" /> 
    <PathGeometry x:Key="TreeArrow"> 
     <PathGeometry.Figures> 
      <PathFigureCollection> 
       <PathFigure IsFilled="True" 
            StartPoint="0 0" 
            IsClosed="True"> 
        <PathFigure.Segments> 
         <PathSegmentCollection> 
          <LineSegment Point="0 6"/> 
          <LineSegment Point="6 0"/> 
         </PathSegmentCollection> 
        </PathFigure.Segments> 
       </PathFigure> 
      </PathFigureCollection> 
     </PathGeometry.Figures> 
    </PathGeometry> 
    <BorderGapMaskConverter x:Key="BorderGapMaskConverter"/> 

    <Style x:Key="CollapsibleGroupBoxStyle" TargetType="{x:Type GroupBox}" BasedOn="{StaticResource {x:Type GroupBox}}"> 
     <Style.Resources> 

      <Style x:Key="ToggleHeaderStyle" TargetType="ToggleButton" BasedOn="{StaticResource {x:Type ToggleButton}}"> 
       <Setter Property="MinWidth" Value="72"/> 
       <Setter Property="Padding" Value="2,1"/> 
       <Setter Property="SnapsToDevicePixels" Value="True"/> 
       <Setter Property="FontSize" Value="18"/> 
       <Setter Property="Template"> 
        <Setter.Value> 
         <ControlTemplate TargetType="ToggleButton"> 
          <Border Background="Transparent" MinHeight="30" 
           Padding="{TemplateBinding Padding}" Focusable="False"> 
           <Grid Background="Transparent" SnapsToDevicePixels="False"> 
            <ContentPresenter Margin="{TemplateBinding Padding}" 
               VerticalAlignment="{TemplateBinding VerticalContentAlignment}" 
               HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
               Focusable="False" 
               SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
            <Path x:Name="ExpandPath" 
              VerticalAlignment="Center" 
              Margin="4,2,0,0" 
              HorizontalAlignment="Right" 
              Fill="Transparent" 
              Stroke="#FF989898" 
              Data="{StaticResource TreeArrow}"> 
             <Path.RenderTransform> 
              <RotateTransform Angle="135" 
                 CenterX="3" 
                 CenterY="3"/> 
             </Path.RenderTransform> 
            </Path> 

           </Grid> 
          </Border> 
          <ControlTemplate.Triggers> 
           <Trigger Property="IsMouseOver" Value="True"> 
            <Trigger.Setters> 
             <Setter Property="Foreground" Value="{StaticResource HyperlinkHoverBlueBrush}"/> 
             <Setter TargetName="ExpandPath" Property="Stroke" Value="#FF1BBBFA"/> 
             <Setter TargetName="ExpandPath" Property="Fill" Value="Transparent"/> 
            </Trigger.Setters> 
           </Trigger> 
           <Trigger Property="IsChecked" Value="True"> 
            <Setter TargetName="ExpandPath" Property="RenderTransform"> 
             <Setter.Value> 
              <RotateTransform Angle="180" 
                   CenterX="3" 
                   CenterY="3"/> 
             </Setter.Value> 
            </Setter> 
            <Setter TargetName="ExpandPath" Property="Fill" Value="#FF595959"/> 
            <Setter TargetName="ExpandPath" Property="Stroke" Value="#FF262626"/> 
           </Trigger> 
          </ControlTemplate.Triggers> 
         </ControlTemplate> 
        </Setter.Value> 
       </Setter> 
      </Style> 
     </Style.Resources> 
     <Setter Property="Background" Value="Transparent"/> 
     <Setter Property="BorderBrush" 
        Value="Gray"/> 
     <Setter Property="BorderThickness" 
        Value="1"/> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="{x:Type GroupBox}"> 
        <Grid SnapsToDevicePixels="true"> 
         <Grid.ColumnDefinitions> 
          <ColumnDefinition Width="6"/> 
          <ColumnDefinition Width="Auto"/> 
          <ColumnDefinition Width="*"/> 
          <ColumnDefinition Width="6"/> 
         </Grid.ColumnDefinitions> 
         <Grid.RowDefinitions> 
          <RowDefinition Height="Auto"/> 
          <RowDefinition Height="Auto"/> 
          <RowDefinition Height="*"/> 
          <RowDefinition Height="6"/> 
         </Grid.RowDefinitions> 
         <Border CornerRadius="4" 
            Grid.Row="1" 
            Grid.RowSpan="3" 
            Grid.Column="0" 
            Grid.ColumnSpan="4" 
            BorderThickness="{TemplateBinding BorderThickness}" 
            BorderBrush="Transparent" 
            Background="{TemplateBinding Background}"/> 
         <Border x:Name="Header" 
            Padding="3,1,3,0" 
            Grid.Row="0" 
            Grid.RowSpan="2" 
            Grid.Column="1"> 
          <ToggleButton x:Name="headerToggleBtn" 
            Content="{TemplateBinding Header}" 
            Style="{StaticResource ToggleHeaderStyle}"> 
          </ToggleButton> 
         </Border> 
         <ContentPresenter x:Name="ContentSite" Grid.Row="2" 
             Grid.Column="1" 
             Grid.ColumnSpan="2" 
             Margin="{TemplateBinding Padding}" 
             SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
         <Border CornerRadius="4" 
            Grid.Row="1" 
            Grid.RowSpan="3" 
            Grid.ColumnSpan="4" 
            BorderThickness="{TemplateBinding BorderThickness}" 
            BorderBrush="White"> 
          <Border.OpacityMask> 
           <MultiBinding Converter="{StaticResource BorderGapMaskConverter}" 
                 ConverterParameter="7"> 
            <Binding ElementName="Header" 
               Path="ActualWidth"/> 
            <Binding RelativeSource="{RelativeSource Self}" 
               Path="ActualWidth"/> 
            <Binding RelativeSource="{RelativeSource Self}" 
               Path="ActualHeight"/> 
           </MultiBinding> 
          </Border.OpacityMask> 

          <Border BorderThickness="{TemplateBinding BorderThickness}" 
             BorderBrush="{TemplateBinding BorderBrush}" 
             CornerRadius="3"> 
           <Border BorderThickness="{TemplateBinding BorderThickness}" 
              BorderBrush="White" 
              CornerRadius="2"/> 
          </Border> 
         </Border> 
        </Grid> 
        <ControlTemplate.Triggers> 
         <DataTrigger Binding="{Binding ElementName=headerToggleBtn, Path=IsChecked}" Value="False"> 
          <Setter Property="Visibility" TargetName="ContentSite" Value="Collapsed"/> 
         </DataTrigger> 
        </ControlTemplate.Triggers> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 

    </Style> 

</Window.Resources> 
<StackPanel Orientation="Horizontal"> 
    <GroupBox Header="Colors" Style="{StaticResource CollapsibleGroupBoxStyle}"> 
     <StackPanel Orientation="Vertical"> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
      <RadioButton GroupName="colorGrp" Content="Blue"/> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
     </StackPanel> 
    </GroupBox> 

    <GroupBox> 
     <GroupBox.Header> 
      <ToggleButton Name="ToggleHeader"> 
       <TextBlock Text="Colors" FontSize="18"/> 
      </ToggleButton> 
     </GroupBox.Header> 
     <StackPanel Orientation="Vertical" Visibility="{Binding ElementName=ToggleHeader, Path=IsChecked, Mode=TwoWay, Converter={StaticResource boolToVizConverter}}"> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
      <RadioButton GroupName="colorGrp" Content="Blue"/> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
     </StackPanel> 
    </GroupBox> 

    <GroupBox Header="  " Style="{StaticResource CollapsibleGroupBoxStyle}"> 
     <StackPanel Orientation="Vertical"> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
      <RadioButton GroupName="colorGrp" Content="Blue"/> 
      <RadioButton GroupName="colorGrp" Content="Red"/> 
     </StackPanel> 
    </GroupBox> 
</StackPanel> 
</Window>

来源

2011-07-25 mobileTofu

看起来像一个[奇偶规则]的问题（http://en.wikipedia.org/wiki/Even-odd_rule）被应用到命中测试的文本，那种有趣... –

设置您的组合框中的的IsHitTestVisible边境False：

<Border 
    Grid.ColumnSpan="4" 
    Grid.Row="1" 
    Grid.RowSpan="3" 
    BorderBrush="White" 
    BorderThickness="{TemplateBinding BorderThickness}" 
    CornerRadius="4" 
    IsHitTestVisible="False"> 
    <Border.OpacityMask> 
    <MultiBinding Converter="{StaticResource BorderGapMaskConverter}" ConverterParameter="7"> 
     <Binding ElementName="Header" Path="ActualWidth"/> 
     <Binding Path="ActualWidth" RelativeSource="{RelativeSource Self}"/> 
     <Binding Path="ActualHeight" RelativeSource="{RelativeSource Self}"/> 
    </MultiBinding> 
    </Border.OpacityMask> 
    <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="3"> 
    <Border BorderBrush="White" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2"/> 
</Border>

来源

2011-07-25 21:06:11

圣牛！这就是诀窍。请你澄清为什么它解决了这个问题？谢谢。 – mobileTofu

因为此边框位于可视化树中切换按钮的顶部。 –

谢谢。这就是我在淋浴休息期间的想法！ – mobileTofu

用鼠标点击WPF中的toggleButton时出现问题

回答

相关问题