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在WPF中关闭上下文菜单

[英]Close Context Menu in WPF

I've add context menu to border in WPF. 我在WPF中将上下文菜单添加到边框。

<Border>
  <Border.ContextMenu>
    <ContextMenu x:Name="HistoryPanelContextMenu">
      <ContextMenu.Template>
        <ControlTemplate>
          <Grid Background="{Binding Background}">
            <Grid.ColumnDefinitions>
              <ColumnDefinition></ColumnDefinition>
              <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Button Grid.Column="0" Background="Transparent" BorderBrush="Transparent" Name="CancelBtn" Content="{x:Static strings:Resource.CancelBtn}" PreviewMouseUp="CancelBtn_OnPreviewMouseUp" Foreground="#fff" FontFamily="Segoe UI Semibold" FontSize="10">
              <Button.Template>
                <ControlTemplate TargetType="{x:Type Button}">
                  <Border x:Name="bdr_main" Background="Transparent" Height="36" VerticalAlignment="Top" BorderBrush="#c0b6d1" BorderThickness="2" CornerRadius="2" Margin="30,0,15,0">
                    <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="8,6,8,6" ContentSource="Content" />
                  </Border>
                  <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                      <Setter TargetName="bdr_main" Property="Background" Value="Transparent"/>
                    </Trigger>
                    <Trigger Property="IsPressed" Value="True">
                      <Setter TargetName="bdr_main" Property="Background" Value="#7FC0B6D1"/>
                    </Trigger>
                  </ControlTemplate.Triggers>
                </ControlTemplate>
              </Button.Template>
            </Button>
            <Button Grid.Column="1" VerticalAlignment="Top" Foreground="#fff" Background="#FF567E94"  FontSize="10" Tag="{Binding Id}" PreviewMouseUp="UIElement_OnPreviewMouseUp" Margin="15,5,0,5" FontFamily="Segoe UI Semibold" >
              <TextBlock VerticalAlignment="Center">
                <Image Height="14" Width="14" Source="/Size.WPF;component/Assets/icon-trash-white.png" Margin="0,0,0,0"/>
                <TextBlock Name="DeleteBtnText" Text="{x:Static strings:Resource.DeleteBtnText}"/>
              </TextBlock>
              <Button.Template>
                <ControlTemplate TargetType="{x:Type Button}">
                  <Border x:Name="bdr_main" Height="36" Background="#FF567E94" BorderBrush="#FF567E94" BorderThickness="0" CornerRadius="2">
                    <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="8,6,8,6" ContentSource="Content" />
                  </Border>
                  <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                      <Setter TargetName="bdr_main" Property="Background" Value="#FF567E94"/>
                    </Trigger>
                    <Trigger Property="IsPressed" Value="True">
                      <Setter TargetName="bdr_main" Property="Background" Value="#6596b1"/>
                    </Trigger>
                  </ControlTemplate.Triggers>
                </ControlTemplate>
              </Button.Template>
            </Button>
          </Grid>
        </ControlTemplate>
      </ContextMenu.Template>
    </ContextMenu>
  </Border.ContextMenu>
</Border>

I tried to close this context menu on button click. 我试图在单击按钮时关闭此上下文菜单。 I found solution just to set IsOpen to false . 我找到了将IsOpen设置为false解决方案。 Well, I tried it in next way : 好吧,我尝试了以下方式:

HistoryPanelContextMenu.IsOpen = false;

but HistoryPanelContextMenu is undefined and I don't know why. 但是HistoryPanelContextMenu是未定义的,我不知道为什么。

So How I can close context menu on click? 那么,如何单击才能关闭上下文菜单?

Thanks. 谢谢。

Did You try binding to a mouse event on the context menu ? 您是否尝试在上下文菜单上绑定到鼠标事件?

<ContextMenu x:Name="TimeCardGridContextMenu" MouseLeftButtonUp="DoSomething">

and the use the sender or the event args to access stuff You need ? 以及使用发送方或事件args访问所需的内容?

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