using EnvDTE; using EnvDTE80; private DTE2 _applicationObject;   public void AutoAddControl(插件 v_form1)         {             //得到当前文件的名称             string v_pathfile = _applicationObject.ActiveDocument.FullName;             //打开文件 "Form1.Designer.cs"             if (!(v_pathfile.EndsWith(".cs")))             {                 MessageBox.Show("当前文件不是.cs文件");                 return;             }             v_pathfile = System.IO.Path.ChangeExtension(v_pathfile, ".Designer.cs");             _applicationObject.ItemOperations.OpenFile(v_pathfile);             string v_file = System.IO.Path.GetFileName(v_pathfile);             _applicationObject.Windows.Item(v_file).Activate();             //修改文件内容 "Form1.Designer.cs"             Document v_doc = _applicationObject.ActiveDocument;             TextSelection selection = (TextSelection)_applicationObject.ActiveDocument.Selection;             selection.SelectAll();             string v_text = selection.Text;             v_text = v_form1.ChangeDoc1(v_text);             selection.SelectAll();             selection.Text = "";             selection.Insert(v_text);             //保存文件 "Form1.Designer.cs"              _applicationObject.ActiveDocument.Save();             _applicationObject.ExecuteCommand("Window.CloseDocumentWindow"); 　　       //vsSaveChangesYes保存并关闭当前活动窗体             //_applicationObject.ActiveWindow.Close(vsSaveChanges.vsSaveChangesYes);         }