我有一个UserControl,它由一个包含3列的网格组成:
Name="Test">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
...
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid Width="{StaticResource DoubleOverallWidthUserControls}" Height="{StaticResource DoubleHeightControls}">
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="{StaticResource GridLengthUserControlLabel}" />
<ColumnDefinition Width="{StaticResource GridLengthUserControlContent}" />
<ColumnDefinition Width="{StaticResource GridLengthUserControlUnits}" />
</Grid.ColumnDefinitions>
<Border
Grid.Row="0"
Grid.Column="0"
BorderBrush="{StaticResource BrushTextInputBorder}"
BorderThickness="0,0,0,1"
Cursor="Arrow">
<TextBlock
x:Name="TextBlockLabel"
Width="{StaticResource DoubleWidthUserControlLabel}"
VerticalAlignment="Center"
DockPanel.Dock="Top"
TextAlignment="Left" />
</Border>
<Border BorderBrush="{StaticResource BrushBorder}" CornerRadius="3,3,0,0" Grid.Row="0"
Grid.Column="1" Background="White">
<TextBox
x:Name="TextBoxText"
Width="{StaticResource DoubleWidthUserControlContent}" />
<Border.Style>
<Style TargetType="Border">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=Test, Path=IsEnabled}" Value="False">
<Setter Property="Background" Value="Gray"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</Border.Style>
</Border>
<TextBlock
x:Name="TextBlockUnit"
Grid.Row="0"
Grid.Column="2"
Width="{StaticResource DoubleWidthUserControlUnits}"
Margin="10,0,0,0"
VerticalAlignment="Center" />
</Grid>
现在我想在我的控件中更改以下内容,如果它被禁用:
有人可以帮助我吗?
答案 0 :(得分:0)
样式设定器仅在您未直接设置属性时才有效。这是因为直接赋值创建了一个所谓的本地值,它的优先级高于样式设置器的值。有关详细信息,请参阅Dependency Property Value Precedence。
由于您要禁用两个边框,您可以在资源中创建以下样式:
<UserControl.Resources>
<Style x:Key="BorderStyle" TargetType="Border">
<Setter Property="Background" Value="White"/>
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=Test, Path=IsEnabled}"
Value="False">
<Setter Property="Background" Value="Gray"/>
</DataTrigger>
</Style.Triggers>
</Style>
</UserControl.Resources>
将此样式指定给边框。
<Border Style="{StaticResource BorderStyle}"/>
您甚至可以通过省略x:Key
<UserControl.Resources>
<Style TargetType="Border">
...
</Style>
</UserControl.Resources>
因此,如果按钮:
,则不必显式设置Style属性<Border>
...
</Border>