C# Microsoft Interops Word将注释插入表格单元格崩溃Word

我希望使用Microsoft.Interop.word以编程方式打开word文档，并在表格单元格中插入注释。 我有单元格范围的起始和结束位置。（Range.Start\Range.End）

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当insert comment Word崩溃时

我将您的代码转换为pascal，并进行一些更改工作正常，没有错误！ 看到了吗

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文字崩溃？没有错误消息？Word安装是否正确？Word的哪个版本？请为您的问题添加答案！Microsoft Word 2013，Word安装正确，无错误消息，无异常，只需崩溃“Microsoft Word已停止工作”，然后重新启动Microsoft Word。如果我在平面文本处插入注释，它将在Interops Versione 14.0.0.0中正常工作

Application.ActiveDocument.Select(); // select ative document
Range rg = Application.Selection.Range; // get the range of the current selection (all document)


 if (rg.Tables.Count > 0)
 {

     Microsoft.Office.Interop.Word.Range rngTab = rg;

     //set the coordinate of the Range of the text 
     rngTab.Start = startRng;
     rngTab.End = endRng;


     doc.ActiveWindow.Visible = true;
     rg.Select();
     Application.ActiveDocument.Comments.Add(rngTab, ref commentText);                                           
  }

var WApplication:twordapplication; rg,rngTab:range;
commentText:olevariant;
begin
commentText:='123';
WApplication := twordapplication.Create(form1);
WApplication.Connect;
WApplication.Visible:=true;
WApplication.Activate;
rg:= WApplication.Selection.Range; // get the range of the current selection (all document)
rngTab:= rg;
     //set the coordinate of the Range of the text
     rngTab.Start:= 1;
     rngTab.End_:= 2;
     rg.Select();
     WApplication.ActiveDocument.Comments.Add(rngTab, commentText);// add comment to text
     rngtab:=WApplication.ActiveDocument.Tables.Item(1).cell(2,2).range;
     rngtab.Select();
     WApplication.ActiveDocument.Comments.Add(rngTab, commentText); // add comment to cell in the table
end;