WPF Popup IsOpen问题 [英] WPF Popup IsOpen issue

问题描述

使用在StackOverflow上的此处找到的概念. 请注意，ToggleButton.IsHitTestVisible已绑定到Popup.IsOpen，并带有StaysOpen="False"..这应该意味着，触摸Popup的外部之外的任何地方都会导致其关闭.但是...

Using a concept found here on StackOverflow. Note that the ToggleButton.IsHitTestVisible is bound to Popup.IsOpen, with StaysOpen="False". This should mean that touching anywhere outside the Popup would cause it to close. However...

触摸/单击ItemsControl中的ListBoxItem不会按预期关闭Popup.触摸Popup 内的其他任何地方都可以将其关闭.根据它的设置方式，这似乎并没有加起来.

Touching/Clicking on an ListBoxItem in the ItemsControl won't close the Popup, as is intended. Touching anywhere else within the Popup does close it. That doesn't seem to add up, according to how this is set up.

<Grid ClipToBounds="True">
    <Border Name="Root">
        <ToggleButton x:Name="PART_Toggle"
                  ClickMode="Release"
                  IsHitTestVisible="{Binding ElementName=PART_Popup,
                                             Path=IsOpen,
                                             Mode=OneWay,
                                             Converter={StaticResource BooleanInverter}}"/>
    </Border>
    <Popup x:Name="PART_Popup"
           IsOpen="{Binding ElementName=PART_Toggle,
                            Path=IsChecked}"
           PlacementTarget="{Binding ElementName=PART_Toggle}"
           StaysOpen="False">
        <Grid Background="Transparent">
            <Grid>
                <!-- Anything here (outside of the Item) -->
                <ItemsControl>
                    <ItemsControl.ItemTemplate>
                        <DataTemplate>
                            <Grid>
                                <!-- Anything in this item template works. The popup does not close -->
                            </Grid>
                        </DataTemplate>
                    </ItemsControl.ItemTemplate>
                </ItemsControl>
            </Grid>
            </Border>
        </Grid>
    </Popup>
</Grid>

有什么想法吗?谢谢.

已解决

事实证明，发生这种情况是因为它位于自ListBox派生的自定义控件中.抱歉，在我提出这个问题时似乎并不相关.

Turns out this was happening because it was inside a custom control which was derived from ListBox. It didn't seem relevant at the time I made this question, sorry.

推荐答案

发生这种情况是因为它位于自ListBox派生的自定义控件中.抱歉，在我提出这个问题时，这似乎并不重要.

Turns out this was happening because it was inside a custom control which was derived from ListBox. It didn't seem relevant at the time I made this question, sorry.

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