WPF DataGridRow IsSelected 触发器

Question

我希望将 DataGrid 中行的选定样式从默认的深蓝色和白色文本更改为实际上取决于行中现有的前景色，如下所示：

<MultiDataTrigger>
  <MultiDataTrigger.Conditions>
    <Condition Property="Foreground" Value="Navy" />
    <Condition Property="IsSelected" Value="True" />
  </MultiDataTrigger.Conditions>
  <MultiDataTrigger.Setters>
    <Setter Property="Background" Value="LightSkyBlue" />
  </MultiDataTrigger.Setters>
</MultiDataTrigger>

<MultiDataTrigger>
  <MultiDataTrigger.Conditions>
    <Condition Property="Foreground" Value="Red" />
    <Condition Property="IsSelected" Value="True" />
  </MultiDataTrigger.Conditions>
  <MultiDataTrigger.Setters>
    <Setter Property="Background" Value="LightGoldenrodYellow" />
  </MultiDataTrigger.Setters>
</MultiDataTrigger>

对于其他控件，我能够找到包含设置所选样式的触发器的 ControlTemplate，但我找不到 DataGridRow 的正确模板。有谁知道里面设置了什么模板吗？

Answer 1

如果您只需要更改 DataGrid 中选定行的背景颜色，您应该使用 DataGridCell 的样式来实现此目的。

    <Style TargetType="{x:Type DataGridCell}">
        <Style.Triggers>
            <Trigger Property="DataGridCell.IsSelected"
                     Value="True">
                <Setter Property="Background"
                        Value="LightGreen" />

                <Setter Property="Foreground"
                        Value="Black" />
            </Trigger>
        </Style.Triggers>
    </Style>

Answer 2

以下是我使用的 DataGridRow 样式，以摆脱默认的蓝色 - 也许它提供了您寻求的答案？

在您的 DataGrid 中，将 RowStyle 属性设置为此样式。

<Style x:Key="BetterHighlightedDataGridRowStyle" TargetType="sdk:DataGridRow">
    <Setter Property="IsTabStop" Value="False"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="sdk:DataGridRow">
                <sdk:DataGridFrozenGrid x:Name="Root">
                    <sdk:DataGridFrozenGrid.Resources>
                        <Storyboard x:Key="DetailsVisibleTransition">
                            <DoubleAnimation Duration="00:00:0.1" Storyboard.TargetProperty="ContentHeight" Storyboard.TargetName="DetailsPresenter"/>
                        </Storyboard>
                    </sdk:DataGridFrozenGrid.Resources>
                    <sdk:DataGridFrozenGrid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition/>
                    </sdk:DataGridFrozenGrid.ColumnDefinitions>
                    <sdk:DataGridFrozenGrid.RowDefinitions>
                        <RowDefinition/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                    </sdk:DataGridFrozenGrid.RowDefinitions>
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal"/>
                            <VisualState x:Name="NormalAlternatingRow">
                                <Storyboard>
                                    <DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundRectangle"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="MouseOver">
                                <Storyboard>
                                    <DoubleAnimation Duration="0" To=".5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundRectangle"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="NormalSelected">
                                <Storyboard>
                                    <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundRectangle"/>
                                    <ColorAnimation Duration="0" To="#DDE9EE33" Storyboard.TargetProperty="(Fill).Color" Storyboard.TargetName="BackgroundRectangle"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="MouseOverSelected">
                                <Storyboard>
                                    <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundRectangle"/>
                                    <ColorAnimation Duration="0" To="#E1C8C864" Storyboard.TargetProperty="(Fill).Color" Storyboard.TargetName="BackgroundRectangle"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="UnfocusedSelected">
                                <Storyboard>
                                    <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundRectangle"/>
                                    <ColorAnimation Duration="0" To="#DDE9EE33" Storyboard.TargetProperty="(Fill).Color" Storyboard.TargetName="BackgroundRectangle"/>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="ValidationStates">
                            <VisualState x:Name="Valid"/>
                            <VisualState x:Name="Invalid">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetProperty="Visibility" Storyboard.TargetName="BackgroundRectangle">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
                                    </ObjectAnimationUsingKeyFrames>
                                    <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="InvalidVisualElement"/>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <Rectangle x:Name="BackgroundRectangle" Grid.ColumnSpan="2" Fill="#FFBADDE9" Opacity="0" Grid.RowSpan="2"/>
                    <Rectangle x:Name="InvalidVisualElement" Grid.ColumnSpan="2" Fill="#FFF7D8DB" Opacity="0" Grid.RowSpan="2"/>
                    <sdk:DataGridRowHeader x:Name="RowHeader" sdk:DataGridFrozenGrid.IsFrozen="True" Grid.RowSpan="3"/>
                    <sdk:DataGridCellsPresenter x:Name="CellsPresenter" Grid.Column="1" sdk:DataGridFrozenGrid.IsFrozen="True"/>
                    <sdk:DataGridDetailsPresenter x:Name="DetailsPresenter" Grid.Column="1" Grid.Row="1"/>
                    <Rectangle x:Name="BottomGridLine" Grid.ColumnSpan="2" Fill="Black" HorizontalAlignment="Stretch" Height="2" Grid.Row="2"/>
                </sdk:DataGridFrozenGrid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>