在DataGrid中更改禁用单元格的背景颜色WPF

我有一个数据网格控件已禁用与完全启用的单元格（某些单元格有下拉列表，文本框，复选框）组合的单元格。问题是禁用单元格的样式与启用的单元格完全相同。我只是想改变所有被禁用的单元格的样式，所以用户很清楚他们不能改变数据。这是我的XAML代码：在DataGrid中更改禁用单元格的背景颜色WPF

<DataGrid Name="DataGrid" 
    ItemsSource="{Binding MySource}" 
    AutoGenerateColumns="False" Grid.Row="1" 
    BorderThickness="0" 
    SelectionMode="Single" SelectionUnit="FullRow" 
    CanUserAddRows="False" CanUserDeleteRows="False" 
    CanUserReorderColumns="False" CanUserSortColumns="False" 
    CanUserResizeColumns="False" CanUserResizeRows="False" 
    BeginningEdit="DataGrid_BeginningEdit" Margin="10"> 
    <DataGrid.Resources> 
     <CollectionViewSource Source="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}, Path=DataContext.SourceList}" x:Key="SourceChoices" /> 
      <CollectionViewSource Source="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}, Path=DataContext.MyDropDownSource}" x:Key="MyDropDownOptions" /> 
      <CollectionViewSource Source="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}, Path=DataContext.MySource}" x:Key="MySourceOptions" /> 
       <Style TargetType="DataGrid"> 
        <Setter Property="GridLinesVisibility" Value="All" /> 
        <Setter Property="HorizontalGridLinesBrush" Value="Gray"/> 
        <Setter Property="VerticalGridLinesBrush" Value="LightGray"/> 
        <Setter Property="FontSize" Value="13" /> 
       </Style> 
       <Style TargetType="DataGridColumnHeader"> 
        <Setter Property="Background" Value="LightGray" /> 
        <Setter Property="Foreground" Value="Black" /> 
        <Setter Property="FontSize" Value="13" /> 
        <Setter Property="FontWeight" Value="DemiBold" /> 
        <Setter Property="HorizontalContentAlignment" Value="Center" /> 
        <Setter Property="Height" Value="34" /> 
       </Style> 
       <Style TargetType="DataGridCell"> 
        <Setter Property="Height" Value="35" /> 
        <Setter Property="Padding" Value="4" /> 
        <Setter Property="BorderThickness" Value="0" /> 
        <Setter Property="Template"> 
         <Setter.Value> 
          <ControlTemplate TargetType="{x:Type DataGridCell}"> 
           <Grid Background="{TemplateBinding Background}"> 
            <ContentPresenter VerticalAlignment="Center" /> 
           </Grid> 
          </ControlTemplate> 
         </Setter.Value> 
        </Setter> 
        <EventSetter Event="PreviewMouseLeftButtonDown" Handler="DataGridCell_PreviewMouseLeftButtonDown"/> 
        <Style.Triggers> 
         <Trigger Property="DataGridCell.IsSelected" Value="True"> 
          <Setter Property="Background" Value="LightBlue" /> 
          <Setter Property="Foreground" Value="Black" /> 
         </Trigger> 
         <Trigger Property="IsEnabled" Value="False"> 
          <Setter Property="Background" Value="Pink" /> 
          <Setter Property="Foreground" Value="Blue" /> 
         </Trigger> 
        </Style.Triggers> 
       </Style> 
       <Style TargetType="DataGridRow"> 
        <Setter Property="Background" Value="White" /> 
        <Setter Property="BorderThickness" Value="0" /> 
        <Setter Property="Width" Value="Auto" /> 
       </Style> 
      </DataGrid.Resources> 
      <DataGrid.Columns> 
       <DataGridTextColumn Header="Pos" Binding="{Binding Position}" Width="40" CanUserSort="False" /> 
       <DataGridTextColumn Header="Acn Nbr" Binding="{Binding MySourceNumber1}" Width="10*" CanUserSort="False" /> 
       <DataGridTextColumn Header="Name" Binding="{Binding MySourceNumber2}" Width="15*" CanUserSort="False" /> 
       <DataGridTextColumn Header="Org #" Binding="{Binding MySourceNumber3}" Width="40" CanUserSort="False" /> 
       <DataGridCheckBoxColumn Header="Proteus" Binding="{Binding MySourceNumber4}" Width="50" CanUserSort="False" /> 
       <DataGridComboBoxColumn Header="Source Id" TextBinding="{Binding MySourceNumber5}" Width="10*" CanUserSort="False" 
              DisplayMemberPath="Name" SelectedValuePath="ID" ItemsSource="{Binding Source={StaticResource Options}}"/> 
       <DataGridComboBoxColumn Header="Bench" SelectedValueBinding="{Binding ID}" Width="10*" CanUserSort="False" 
              DisplayMemberPath="Name" SelectedValuePath="ID" ItemsSource="{Binding Source={StaticResource Options}}"/> 
       <DataGridComboBoxColumn Header="Org Id" SelectedValueBinding="{Binding ID}" Width="10*" CanUserSort="False" 
              DisplayMemberPath="OrganismAbbrev" SelectedValuePath="ID" ItemsSource="{Binding Source={StaticResource Options}}"/> 
       <DataGridTextColumn Header="Comment" Binding="{Binding Comment}" Width="20*" CanUserSort="False" /> 
      </DataGrid.Columns> 
     </DataGrid>

注意，在代码中的一部分，上面写着：

<Trigger Property="DataGridCell.IsSelected" Value="True"> 
    <Setter Property="Background" Value="LightBlue" /> 
    <Setter Property="Foreground" Value="Black" /> 
</Trigger>

这不是为我工作。我究竟做错了什么？

谢谢！

来源

2017-09-05 J-man

我将触发器移动到DataGridRow风格，没有骰子。 –

对不起，我正在看看“这不适合我”的部分，但是后来我又读了整个问题。所以，不起作用的是被禁用的单元应该有粉红色背景，对吧？ –

我只是设置了另一个触发器来禁用某些单元格，并且它们变成了粉色背景。你如何禁用单元格？ –

您可以将触发器放在ControlTemplate中。然后，无论您在触发器中引用的属性（在本例中为“IsEnabled”或“IsSelected”），它都将指向它所属的任何TargetType的属性（在本例中为DataGridCell），假定数据具有此类属性键入它将工作。否则绑定将会中断。

<Setter Property="Template"> 
     <Setter.Value> 
       <ControlTemplate TargetType="{x:Type DataGridCell}"> 
        <Grid Background="{TemplateBinding Background}"> 
        <ContentPresenter VerticalAlignment="Center" /> 
        </Grid> 
       <ControlTemplate.Triggers> 
       <Trigger Property="IsSelected" Value="True"> 
         <Setter Property="Background" Value="LightBlue" /> 
         <Setter Property="Foreground" Value="Black" /> 
        </Trigger> 
        <Trigger Property="IsEnabled" Value="False"> 
         <Setter Property="Background" Value="Pink" /> 
         <Setter Property="Foreground" Value="Blue" /> 
        </Trigger> 
       </ControlTemplate.Triggers> 
      </ControlTemplate> 
     </Setter.Value> 
    </Setter>

来源

2017-09-07 23:49:12

这个技巧！感谢@baye dbest –

在DataGrid中更改禁用单元格的背景颜色WPF

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