如何使用Grid.Row属性作为MultiDataTrigger条件的数据绑定路径? [英] How can I use Grid.Row Property as a DataBinding Path for a MultiDataTrigger Condition?

问题描述

我想为TextBox设置一个MultiDataTrigger，如下面的代码所示.

I'd like to set a MultiDataTrigger for a TextBox as shown in the code below.

如果我在后面的代码中定义的IsNormal属性为false，并且TextBox位于网格的第二行，则其IsEnabled应该为false.

If IsNormal property, which I defined in the code-behind, is false and the TextBox is in the 2nd row of a Grid, IsEnabled of it should be false.

但是，有关Grid.Row的条件无法正常工作.

However, the Condition regarding the Grid.Row does not work properly.

您能告诉我在这种情况下如何使用Grid.Row属性作为绑定路径吗?

Could you tell me how it is possible to use a Grid.Row property as a binding path in this case?

<Style TargetType="TextBox">
    <Style.Triggers>
        <MultiDataTrigger>
            <MultiDataTrigger.Conditions>
                <Condition Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=UserControl}, Path=IsNormal}" 
                           Value="False"/>
                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Grid.Row}"
                           Value="2"/>
            </MultiDataTrigger.Conditions>
            <Setter Property="IsEnabled" Value="False"/>
        </MultiDataTrigger>
    </Style.Triggers>
</Style>

推荐答案

Grid.Row是附加属性，因此应如下所示:

Grid.Row is an attached property, so it should be like this:

<Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=(Grid.Row)}"
                       Value="2"/>

使用(OwnerClass.AttachedProperty)表示OwnerClass的AttachedProperty的路径.

这篇关于如何使用Grid.Row属性作为MultiDataTrigger条件的数据绑定路径?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！