wpf 将 DataTrigger 应用于 GridViewColumn
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Applying DataTrigger To GridViewColumn
提问by KeyboardFriendly
How can I apply a datatrigger to the following in a VS 2012 WPF app?
如何在 VS 2012 WPF 应用程序中将数据触发器应用于以下内容？
I have tried this: Error: Foreground is not accessible or recognized
我试过这个：错误：前台无法访问或识别
<ListView.View>
<GridView AllowsColumnReorder="true"
ColumnHeaderToolTip="Information">
<GridViewColumn DisplayMemberBinding= "{Binding Path=Title , TargetNullValue='No Title Found'}"
Header="Title" Width="100">
<GridViewColumn.CellTemplate>
<DataTemplate>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Title}" Value="{x:Null}">
<Setter Property="Foreground" Value="Salmon"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
I want it to Display No Title Found in a different color
我希望它以不同的颜色显示未找到的标题
<DataTrigger Binding="{Binding Title}" Value="{x:Null}">
<Setter Property="Foreground" Value="Salmon"/>
</DataTrigger>
回答by LPL
You have to specify the class of Foreground, you have to omit DisplayMemberBindingand use e.g. a TextBlockin DataTemplateinstead:
您必须指定的类Foreground，您必须省略DisplayMemberBinding并使用例如 a TextBlockinDataTemplate代替：
<DataTemplate>
<TextBlock Text="{Binding Path=Title , TargetNullValue='No Title Found'}"/>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Title}" Value="{x:Null}">
<Setter Property="TextBlock.Foreground" Value="Salmon"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
