我有一个ListBox,它绑定到一个列表,并为其项设置了DataTemplate。在DataTemplate中,除了第二个TextBlock的可见性外,其他都运作良好!我不明白自己做错了什么,也不想使用转换器,我已经检查过以下链接:
<ListBox Name="lsb_Jobs" Grid.Column="3" Grid.Row="2" Grid.RowSpan="6" ScrollViewer.HorizontalScrollBarVisibility="Disabled"
BorderThickness="0,1,0,0" Padding="0,5" Margin="0,10,5,5">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid Height="45">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25"/>
<ColumnDefinition Width="250"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.Style>
<Style TargetType="Grid">
<Style.Triggers>
<DataTrigger Binding="{Binding Importance}" Value="0">
<Setter Property="Background" Value="LimeGreen"/>
</DataTrigger>
<DataTrigger Binding="{Binding Importance}" Value=".25">
<Setter Property="Background" Value="NavajoWhite"/>
</DataTrigger>
<DataTrigger Binding="{Binding Importance}" Value=".5">
<Setter Property="Background" Value="Gold"/>
</DataTrigger>
<DataTrigger Binding="{Binding Importance}" Value=".75">
<Setter Property="Background" Value="Orange"/>
</DataTrigger>
<DataTrigger Binding="{Binding Importance}" Value="1">
<Setter Property="Background" Value="OrangeRed"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Grid.Style>
<CheckBox Name="chb_IsDone" IsChecked="{Binding Done}" FlowDirection="LeftToRight" Checked="job_Done_Checked" Unchecked="job_Done_Checked"/>
<TextBlock Text="{Binding Subject}" Grid.Column="1" Foreground="Black" VerticalAlignment="Center" FontSize="14"/>
<TextBlock Text="Done" Grid.Column="3" HorizontalAlignment="Right" VerticalAlignment="Center" Visibility="Hidden" Margin="0,0,170,0">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding Done}" Value="True">
<Setter Property="Visibility" Value="Visible"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
你能告诉我为什么它不起作用吗?!我做了和其他控件一样的事情!它们都能工作,但是 TextBlock 控件没有出现!TextBlock 的 Visibility 属性有问题吗?!我已经尝试使用 FrameworkElement.Visibility 了,但那也没用。