WPF：将 DataTrigger 与 IsMouseOver 相结合

Question

这是我的绑定数据：

List<MyData> files;

public clas MyData
{
  public string Name { get; set; }    // Column
  public bool IsOK { get; set; }     // Not a Column
  public string Format { get; set; }  // Column
}

我的ListView:

<ListView
    Grid.Row="0"
    Name="lvFiles"
    ItemsSource="{Binding wiresharkFiles}">

<ListView.ItemContainerStyle>
  <DataTrigger Binding="{Binding IsOK}" Value="True">
     <Setter Property="Foreground" Value="Red" />
  </DataTrigger>
  <MultiTrigger>
      <MultiTrigger.Conditions>
          <Condition Property="IsMouseOver" Value="True"/>
      </MultiTrigger.Conditions>
      <Setter Property="Foreground" Value="White"></Setter>
      <Setter Property="Background" Value="Green"/>
  </MultiTrigger>
</ListView.ItemContainerStyle>

我有几个 ListViewColumns 因为我只想更改名称列的颜色我将其添加到我的其他列（格式列）GridViewColumn:

<GridViewColumn Width="115" Header="Format">
    <GridViewColumn.CellTemplate>                                    
        <DataTemplate>
                <TextBlock 
                    x:Name="textBlock"
                    Text="{Binding FileFormat}"
                    Margin="0,0,0,0"/>
            <DataTemplate.Triggers>
                <DataTrigger Binding="{Binding IsOK}" Value="True">
                    <Setter TargetName="textBlock" Property="Foreground" Value="Silver"/>
                </DataTrigger>
            </DataTemplate.Triggers>
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>

这不会将此 Column（格式列）标记为红色，但如果 IsMouseIsOver 是 true，则此 column 仍在 Silver 而不是变成 White 就像在我的 trigger.

中定义

所以我将 GridViewColumn 更改为：

<GridViewColumn Width="115" Header="Format">
    <GridViewColumn.CellTemplate>                                    
        <DataTemplate>
            <TextBlock 
                    x:Name="textBlock"
                    Text="{Binding FileFormat}"
                    Margin="0,0,0,0">
                <TextBlock.Style>
                    <Style TargetType="TextBlock">
                        <Style.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter Property="Foreground" Value="Gray"/>
                            </Trigger>
                        </Style.Triggers>
                    </Style>
                </TextBlock.Style>
            </TextBlock>
            <DataTemplate.Triggers>
                <DataTrigger Binding="{Binding BadCheckSumExist}" Value="True">
                    <Setter TargetName="textBlock" Property="Foreground" Value="Silver"/>
                </DataTrigger>
            </DataTemplate.Triggers>
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>

但这仍然没有按预期工作。

Answer 1

将触发器保持在 ItemContainerStyle。只需将 Foreground 绑定添加到 TextBlock，这将从 ListViewItem 的 Foreground.

获取前景画笔

<TextBlock x:Name="textBlock"
           Text="{Binding FileFormat}"
           Foreground="{Binding Path=Foreground, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListViewItem}}}"
           Margin="0,0,0,0"/>

WPF：将 DataTrigger 与 IsMouseOver 相结合

WPF: Combine DataTrigger with IsMouseOver

wpf

triggers

datatrigger