在WinForms中的MenuStrip和DropDownItems中添加和删除ToolStripMenuItem [英] Adding and removing ToolStripMenuItem's from MenuStrip and DropDownItems in WinForms

问题描述

我有一些静态项目的MenuStrip.我要以编程方式添加此MenuStrip的项目.其中一些项目具有子项目(DropDownItems).

I have MenuStrip with some static items. To this MenuStrip I am adding items programmatically. Some of these items has child items (DropDownItems).

在某些时候，我想删除所有添加的项目以重新创建具有不同项目的菜单.怎么做对呢?

At some point I would like to remove all added items to recreate menu with different items. How to do it right?

示例情况:

mainMenu
 -staticItem1
 -added1
  -added1_sub1
  -added1_sub2
 -added2
  -added2_sub1

我可以做到:

added1.Dispose();
mainMenu.Items.Remove(added2);

这两种方法都可以，但是我不确定它是否安全.也许我应该递归地删除并处置所有项目和子项目?

Both of this works, but I am not sure if it's safe. Maybe I should remove and dispose all items and subitems one by one recursively?

推荐答案

• 仅使用Remove方法就足够了
• 您不需要递归，删除父级时，所有子级都将被删除
• 使用Items.Clear()删除菜单的所有子项，然后 DropDownItems.Clear()删除某项的所有子项.
• Use Remove method only, it's enough
• You don't need recursive, When you remove a parent all its children will be removed
• Use Items.Clear() to remove all the children for the Menu and DropDownItems.Clear() to remove all the children for an item.

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