Question

I have a UserControl which contains a ContentControl. When the user clicks this ContentControl I want to change its ContentTemplate, to make it "editable" (instead of labels display textboxes for example). What I have is this:

<StackPanel>
    <ContentControl Style="{DynamicResource ContainerStyleEditable}" GotFocus="ContentControl_GotFocus"></ContentControl>
</StackPanel>

经常资源 i)

<Style TargetType="{x:Type ContentControl}" x:Key="ContainerStyleEditable">
    <Setter Property="ContentTemplate" Value="{DynamicResource ItemTemplateReadOnly}" />
    <Style.Triggers>
        <Trigger Property="IsFocused" Value="True">
            <Setter Property="ContentTemplate" Value="{DynamicResource ItemTemplateEditable}" />
        </Trigger>
    </Style.Triggers>
</Style>

这并不奏效,似乎是GotFocus事件从没有火灾。如何做到这一点?

Answer 1

I usually base my triggers of IsKeyboardFocusWithin instead of IsFocused because often the focused element usually isn t the actual ContentControl, but rather a control inside it s Content.

另外,还应确保<代码>中至少有一种控制。能够接受重点,以便控制能够集中。如果控制范围内的任何东西都不会接受重点,那么你的触发点永远不会火灾。

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