c#操作word表格

c#操作word表格(13)       {
       object mymissing = System.Reflection.Missing.Value;
       object myunit = Word.WdUnits.wdStory;
       wordApp.Selection.EndKey(ref myunit,ref mymissing);

       object pBreak= (int)Word.WdBreakType.wdPageBreak;
       wordApp.Selection.InsertBreak( ref pBreak );
      }
     }
   

     wordDoc.SaveAs(ref filename, ref missing,ref missing, ref missing,ref missing,ref missing,ref missing,ref missing,ref missing,ref missing, ref missing);
  
  
     wordDoc.Close(ref Nothing, ref Nothing, ref Nothing);
     wordApp.Quit(ref Nothing, ref Nothing, ref Nothing);

     if ( wordDoc != null )
     {
      System.Runtime.InteropServices.Marshal.ReleaseComObject(wordDoc);
      wordDoc = null;
     }
     if ( wordApp != null )
     {
      System.Runtime.InteropServices.Marshal.ReleaseComObject(wordApp);
      wordApp = null;
     }
     GC.Collect();
     //KillWordProcess();
     string strUrl = "MakeWordFile.ASPx?username="+Request.QueryString["username"].ToString();
     utility.ShowPopMessage("文档生成完毕！",strUrl);
    }
    else
    {
     utility.ShowPopMessage("无任何数据！");
    }