我需要能夠將setter的Value設置爲附加屬性,但是難以提供語法。這是我的觸發樣子:將Setter的值設置爲附加屬性
<DataTrigger Binding="{Binding Path=IsDisabled}" Value="True">
<Setter TargetName="LayoutRoot" Property="Opacity" Value="0.3" />
<Setter TargetName="LayoutRoot" Property="Background" Value="Interaction:Behaviors.OriginalBgBrush" />
</DataTrigger>
其中互動:Behaviors.OriginalBgBrush是附加屬性上LayoutRoot設置,並且LayoutRoot是一個邊界。我不得不這樣做,因爲在此之上的標準觸發器會設置背景,但我無法同時檢查模板和數據觸發器的值。下面是整個模板,其中MultiTrigger是設置我不想要的背景的模板。此外,背景顏色以使用此ControlTemplate作爲其「模板」屬性的單獨樣式進行定義。
<ControlTemplate x:Key="StandardRowStyle" TargetType="tk:DataGridRow">
<Border x:Name="LayoutRoot" Margin="0,0,0,-1" MinHeight="23" Interaction:Behaviors.OriginalBgBrush="{TemplateBinding Background}" PreviewMouseRightButtonDown="DataGridRow_SimpleMouseDown" PreviewMouseLeftButtonDown="DataGridRow_SimpleMouseDown" Background="{TemplateBinding Background}" BorderBrush="{StaticResource ElementBorderBrush}" BorderThickness="1" CornerRadius="0" SnapsToDevicePixels="True">
<toolkit:SelectiveScrollingGrid x:Name="DGR_SelectiveScrollingGrid">
<toolkit:SelectiveScrollingGrid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</toolkit:SelectiveScrollingGrid.ColumnDefinitions>
<toolkit:SelectiveScrollingGrid.RowDefinitions>
<RowDefinition Height="*" MinHeight="23"/>
<RowDefinition Height="Auto"/>
</toolkit:SelectiveScrollingGrid.RowDefinitions>
<toolkit:DataGridCellsPresenter Grid.Column="1" Grid.Row="0" x:Name="DGR_CellsPresenter" ItemsPanel="{TemplateBinding ItemsPanel}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<toolkit:DataGridDetailsPresenter Grid.Column="1" Grid.Row="1" Visibility="{TemplateBinding DetailsVisibility}" toolkit:SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding Path=AreRowDetailsFrozen, Converter={x:Static tk:DataGrid.RowDetailsScrollingConverter}, ConverterParameter={x:Static tk:SelectiveScrollingOrientation.Vertical}, RelativeSource={RelativeSource AncestorType={x:Type tk:DataGrid}}}" />
<!--<toolkit:DataGridRowHeader Grid.Column="2" Grid.RowSpan="2" toolkit:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{Binding Path=HeadersVisibility, Converter={x:Static tk:DataGrid.HeadersVisibilityConverter}, ConverterParameter={x:Static tk:DataGridHeadersVisibility.Row}, RelativeSource={RelativeSource AncestorType={x:Type tk:DataGrid}}}"/>-->
</toolkit:SelectiveScrollingGrid>
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True" />
<Condition Property="IsSelected" Value="False" />
<Condition Property="DetailsVisibility" Value="Collapsed" />
</MultiTrigger.Conditions>
<Setter TargetName="LayoutRoot" Property="Background" Value="{StaticResource InactiveSelectedBackgroundBrush}" />
<Setter TargetName="LayoutRoot" Property="BorderBrush" Value="{StaticResource InactiveOuterBorderBrush}" />
<Setter TargetName="LayoutRoot" Property="CornerRadius" Value="5" />
</MultiTrigger>
<DataTrigger Binding="{Binding Path=IsDisabled}" Value="True">
<Setter TargetName="LayoutRoot" Property="Opacity" Value="0.3" />
<!-- Background needs to be changed back to default here -->
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
沒有DataTriggers或MultiTriggers了在Silverlight的方塊,所以我會假設這是WPF。 – 2010-02-22 23:04:50