在哪个按钮上触发了菜单项弹出窗口 [英] ON which button was the menuitem popup triggered

问题描述

我有一个带有菜单项的按钮.我需要知道"ON"是弹出按钮中的哪个被触发了吗?

我尝试过类似的方法:

I have a button set up with menu items. I need to know "ON" which of those buttons was the pop up triggered?

I tried something like :

ContextMenu ct = (ContextMenu)((MenuItem)sender).Parent;

但是除了作为菜单项的父项获得菜单"之外，我什么也做不了-.-

but I cant go anywhere further than get the "Menu" as a parent of MenuItem -.-

推荐答案

如果按钮触发了弹出菜单，则没有访问方式.您所能做的就是访问菜单.菜单项应具有标签属性.您的按钮可以在显示菜单之前进行设置，而这可能就是您所知道的.我认为它是一个对象，因此您可以将其设置为控件或字符串.

If a button triggered the popup menu, there''s no way to access that. All you can do is access the menu. The menu item should have a tag property. Your button could set that before showing the menu and that could be how you tell. I think it''s an object so you could set it to be the control, or a string.

不幸的是，上下文菜单不在可视树的范围内.以下是有关尝试在MenuItem中进行绑定的一些评论: http://stackoverflow. com/questions/1013558/elementname-binding-from-menuitem-in-contextmenu [

Unfortunately, the context menu is outside of the visual tree. Here is some comments on attempting to work with binding in a MenuItem: http://stackoverflow.com/questions/1013558/elementname-binding-from-menuitem-in-contextmenu[^]

这是一个解决方案...

Here is a solution...

private void MenuItem_Click(object sender, RoutedEventArgs e)
        {
            MenuItem mnu = sender as MenuItem;
            Button ct = null;
            if (mnu != null)
            {
                ct = ((ContextMenu)mnu.Parent).PlacementTarget as Button;
                MessageBox.Show("Clicked " + ct.Name);
            }
        }

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