解决方法
关键是将PreviewMouseRightButtonDown事件设置在正确的位置.你会注意到,即使没有ContextMenu右键单击一个ListViewItem将选择该项目,因此我们需要在每个项目上设置事件,而不是在ListView上.
<ListView>
<ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<EventSetter Event="PreviewMouseRightButtonDown"
Handler="OnListViewItemPreviewMouseRightButtonDown" />
</Style>
</ListView.ItemContainerStyle>
<ListView.ContextMenu>
<ContextMenu>
<MenuItem Header="Menu Item">Item 1</MenuItem>
<MenuItem Header="Menu Item">Item 2</MenuItem>
</ContextMenu>
</ListView.ContextMenu>
<ListViewItem>Item</ListViewItem>
<ListViewItem>Item</ListViewItem>
<ListViewItem>Item</ListViewItem>
<ListViewItem>Item</ListViewItem>
<ListViewItem>Item</ListViewItem>
<ListViewItem>Item</ListViewItem>
</ListView>
private void OnListViewItemPreviewMouseRightButtonDown(object sender,MouseButtonEventArgs e)
{
Trace.WriteLine("Preview MouseRightButtonDown");
e.Handled = true;
}
由于预览事件为tunneling,因此将阻止RightMouseButtonDown发生在ListViewItems上,从而阻止它们被选中,但不会阻止ListView上的RightMouseButtonDown,因此仍允许ContextMenu打开.
