Question

如何在左键单击而不是右键单击silverlight

中打开上下文菜单

<Button Content="Add" Command="{Binding AddTemplateCommand}" Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="14,18,0,0" Name="button1" VerticalAlignment="Top" Width="75" >
    <toolkit:ContextMenuService.ContextMenu >
        <toolkit:ContextMenu Name="contextMenu1" >
            <toolkit:MenuItem Name="FixedToken" Header="FixedToken" ></toolkit:MenuItem>
            <toolkit:MenuItem Name="SequenceToken" Header="SequenceTokenToken" ></toolkit:MenuItem>                             
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>
</Button>

Answer 1

试试这个：

// On click
private void button1_Click(object sender, RoutedEventArgs e)
{
    ContextMenuService.GetContextMenu(button1).IsOpen = true;
}

// On right-click
private void button1_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
    e.Handled = true;
}

Answer 2

当您在一个控件上有多个带有上下文菜单的按钮时，单击事件会导致出现问题，并显示上下文菜单的位置。

当您单击button1，菜单将打开，将鼠标移动到button2，单击一次，菜单将关闭并单击另一个而不移动鼠标时，会出现这种情况。新的菜单打开位置，其中是button1的菜单。

要解决此问题，您需要重建Silverlight Toolkit项目。

从https://silverlight.codeplex.com
打开项目Control.Input.Toolkit - ＆gt; ContextMenu - ＆gt; ContextMenu.cs 并改变

内部DependencyObject所有者

internal DependencyObject Owner
        {
            get { return _owner; }
            set
            {
                if (null != _owner)
                {
                    FrameworkElement ownerFrameworkElement = _owner as FrameworkElement;
                    if (null != ownerFrameworkElement)
                    {
                        ownerFrameworkElement.MouseLeftButtonDown -= new MouseButtonEventHandler(HandleOwnerMouseRightButtonDown);
                        ownerFrameworkElement.MouseRightButtonDown -= new MouseButtonEventHandler(HandleOwnerMouseRightButtonDown);
                    }
                }
                _owner = value;
                if (null != _owner)
                {
                    FrameworkElement ownerFrameworkElement = _owner as FrameworkElement;
                    if (null != ownerFrameworkElement)
                    {
                        ownerFrameworkElement.MouseLeftButtonDown += new MouseButtonEventHandler(HandleOwnerMouseRightButtonDown);
                        ownerFrameworkElement.MouseRightButtonDown += new MouseButtonEventHandler(HandleOwnerMouseRightButtonDown);
                    }
                }
            }
        }

构建它，在Silverlight项目中更改对新dll的引用并在按钮中设置

ClickMode =＆＃34;悬停＆＃34;

<Button Content="Contextmenu" x:Name="button1" ClickMode="Hover" >
    <toolkit:ContextMenuService.ContextMenu >
        <toolkit:ContextMenu Name="contextMenu1" >
            <toolkit:MenuItem />                         
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>
</Button>

如何在左键单击时打开上下文菜单，而不是在silverlight中单击鼠标右键

2 个答案: