写个vs add-in(图解)

新建项目

加个窗体

写个代码

创建项目会同时创建connect, 我们这里把OnConnection方法修改一下

		/// <summary>实现 IDTExtensibility2 接口的 OnConnection 方法。接收正在加载外接程序的通知。</summary>
		/// <param term='application'>宿主应用程序的根对象。</param>
		/// <param term='connectMode'>描述外接程序的加载方式。</param>
		/// <param term='addInInst'>表示此外接程序的对象。</param>
		/// <seealso class='IDTExtensibility2' />
		public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
		{
			_applicationObject = (DTE2)application;
			_addInInstance = (AddIn)addInInst;
			CommandBars cmdBars = (CommandBars)(_applicationObject.DTE.CommandBars);
            CommandBar vsBarProject = cmdBars["Code Window"];

            CommandBarPopup menu = vsBarProject.Controls.Add(MsoControlType.msoControlPopup, Missing.Value, Missing.Value, 1, true) as CommandBarPopup;
            menu.Caption = "Stone.Addin";

            CommandBarControl menuItem = menu.Controls.Add(MsoControlType.msoControlButton, 1, "", 1, true);
            menuItem.Tag = "建立测试tag";
            menuItem.Caption = "建立测试caption";
            menuItem.TooltipText = "建立测试tooltip";
            menuItemHandler = (CommandBarEvents)_applicationObject.Events.get_CommandBarEvents(menuItem);
            menuItemHandler.Click += new _dispCommandBarControlEvents_ClickEventHandler(menuItemHandler_Click);//这里的事件我们让他显示我们刚才添加的form1
		}