menuItem在按钮单击时显示null

当我在按钮上动态添加MenuItem时，单击其工作但在创建MenuItem后显示错误我尝试获取名称mnuAAA但我得到空值。

When i adding MenuItem dynamically on a button click its working but error showing after creating MenuItem i try to get the name "mnuAAA" but i am getting null value.

MenuItem newMenuItem1 = new MenuItem();
MenuItem newMenuItem2 = new MenuItem();
MenuItem newExistMenuItem = (MenuItem)this.mnuTest.Items[0];
newMenuItem1.Header = "AAA";
newMenuItem1.Name = "mnuAAA";
newExistMenuItem.Items.Add(newMenuItem1);
MenuItem newExistMenuItem2 = (MenuItem)this.mnuTest2.Items[1];
newMenuItem2.Header = "BBBBBB";
newMenuItem2.Name = "mnuBBBBB";
newExistMenuItem2.Items.Add(newMenuItem2);





MenuItem mnuMenu = (MenuItem)this.FindName("mnuAAA");
MessageBox.Show(mnuMenu.Name.ToString());

感谢adavance

Thanks in adavance