我有一个自定义窗口,它有两个依赖属性:布尔值?ValidationStatus 和字符串 ValidationMessage。绑定这些属性可以正常工作,但是当这些值更改时似乎不会触发触发器。我究竟做错了什么?
<TextBlock x:Name="validationTextBox"
Grid.Row="1"
Grid.ColumnSpan="2"
Text="{Binding ElementName=_this, Path=ValidationMessage}"
TextAlignment="Center"
Background="Green">
<TextBlock.Style>
<Style>
<Style.Triggers>
<DataTrigger Value="False" Binding="{Binding ElementName=_this, Path=ValidationStatus}">
<Setter Property="Panel.Background" Value="Red"/>
<Setter Property="TextBox.Text" Value="Outer checkbox is not checked"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>