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当DataGrid不在焦点时,如何对所选行进行去饱和?

multidatatrigger wpftoolkit triggers xaml wpf

devuxer · 技术社区 · 16 年前

UI控件的正常约定是,当父控件处于焦点时,所选文本、项或行将显示为明亮的颜色(例如,亮蓝色),而当控件处于焦点之外时,所选文本、项或行将显示为不饱和/暗度(例如,淡蓝色)。

相比之下 ListView/GridView WPF DataGrid 默认情况下,控件不遵循此约定。即使同一窗口中的另一个控件已清晰聚焦,选定的行也会显示为明亮。

我认为这应该只是给 DataGridCell 将背景设置为 {DynamicResource {x:Static SystemColors.ControlBrushKey}} 如果 数据网格 没有焦点,但我无法确定要检查哪个属性。 IsFocused 听起来像我想要的,但那不管用。 IsMouseCaptured 似乎也不管用。

这是我尝试的最新触发器:

<MultiDataTrigger>
    <MultiDataTrigger.Conditions>
        <Condition
            Binding="{Binding IsSelected}"
            Value="True" />
        <Condition
            Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=wt:DataGrid}, Path=IsFocused}"
            Value="False"/>
    </MultiDataTrigger.Conditions>
    <Setter
        Property="BorderBrush"
        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
    <Setter
        Property="Background"
        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
    <Setter
        Property="Foreground"
        Value="Gray" />
</MultiDataTrigger>

当选定单元格且父控件未处于焦点时,如何使此触发器使单元格变暗?

2 回复 | 直到 12 年前

devuxer 16 年前

嗯,这是一个怪物,但它似乎起作用:

<MultiDataTrigger>
    <MultiDataTrigger.Conditions>
        <Condition
            Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=wt:DataGridRow}, Path=IsSelected}"
            Value="True" />
        <Condition
            Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=wt:DataGrid}, Path=IsKeyboardFocusWithin}"
            Value="True" />
    </MultiDataTrigger.Conditions>
    <Setter
        Property="BorderBrush"
        Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
    <Setter
        Property="Background"
        Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
    <Setter
        Property="Foreground"
        Value="Black" />
</MultiDataTrigger>
<MultiDataTrigger>
    <MultiDataTrigger.Conditions>
        <Condition
            Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=wt:DataGridRow}, Path=IsSelected}"
            Value="True" />
        <Condition
            Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=wt:DataGrid}, Path=IsKeyboardFocusWithin}"
            Value="False" />
    </MultiDataTrigger.Conditions>
    <Setter
        Property="BorderBrush"
        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
    <Setter
        Property="Background"
        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
    <Setter
        Property="Foreground"
        Value="Gray" />
</MultiDataTrigger>

Alastair Pitts 16 年前

从我的代码中抽出一点:当TreeView不在焦点范围内时,这是TreeView项背景的触发器。

                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="true"/>
                                <Condition Property="IsSelectionActive" Value="false"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="Background" TargetName="SelectBorder">
                                <Setter.Value>
                                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                                        <GradientStop Color="#939F90" Offset="0"/>
                                        <GradientStop Color="#BCC4BA" Offset="1"/>
                                    </LinearGradientBrush>
                                </Setter.Value>
                            </Setter>
                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
                        </MultiTrigger>

我相信选修课是关键条件…