Visual Studio Addin - 无法创建子菜单项

Question

我正在尝试为 Visual Studio 2008 插件创建基本菜单结构。到目前为止，我可以创建第一个顶级菜单，在下面的示例中我将其称为 TOPMENU。我正在努力弄清楚如何将子项目添加到顶部菜单。我尝试了多种方法，都无法解决。有人可以帮我完成下面的代码吗？当我尝试创建下面的对象“a2”时，当前出现无效的强制转换异常。

void IDTExtensibility2.OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
{
 _ApplicationObject = (DTE2)application;
 _AddInInstance = (AddIn)addInInst;

 if (connectMode == ext_ConnectMode.ext_cm_UISetup)
 {
  object[] contextGUIDS = new object[] { };
  Commands2 commands = (Commands2)_ApplicationObject.Commands;
  CommandBar cbMainMenu = ((CommandBars)_ApplicationObject.CommandBars)["MenuBar"];

  try
  {
   // ROOT MENU
   Command cmdProjectManagement = commands.AddNamedCommand2(_AddInInstance, "TOPMENU", "TOPMENU", "",
    true, null, ref contextGUIDS, (int)vsCommandStatus.vsCommandStatusSupported + (int)vsCommandStatus.vsCommandStatusEnabled,
    (int)vsCommandStyle.vsCommandStyleText, vsCommandControlType.vsCommandControlTypeButton);

   if (cmdProjectManagement != null)
    cmdProjectManagement.AddControl(cbMainMenu, cbMainMenu.Controls.Count);

   // SUB ITEM
   Command cmdCompiledAssemblies = commands.AddNamedCommand2(_AddInInstance, "TOPMENU_CompiledAssemblies", "Compiled Assemblies", String.Empty,
    true, null, ref contextGUIDS, (int)vsCommandStatus.vsCommandStatusSupported + (int)vsCommandStatus.vsCommandStatusEnabled,
    (int)vsCommandStyle.vsCommandStyleText, vsCommandControlType.vsCommandControlTypeButton);

   CommandBarControl a1 = cbMainMenu.Controls["TOPMENU"];
   CommandBarPopup a2 = (CommandBarPopup)a1;

   if (cmdCompiledAssemblies != null)
    cmdCompiledAssemblies.AddControl(a2.CommandBar, 1);
  }
  catch (Exception ex)
  {
  }
 }
}

Answer 1

有关如何创建各种菜单和工具栏的完整文档位于此处

。 mztools.com/articles/2005/mz2005003.aspx