后台取得文件路径怎么显示在表格里

Richard.Ma

protected void Button1_Click(object sender, EventArgs e)
      {
         Thread test = new Thread(new ThreadStart(GetOpenFile));
         test.SetApartmentState(ApartmentState.STA);
         test.Priority = ThreadPriority.Highest;
         test.Start();
         test.Join(300);
      }

      private void GetOpenFile()
      {
         SheetView sheet = listGID1060010.Sheet[0];
         OpenFileDialog fb = new OpenFileDialog();
         bool? res = fb.ShowDialog();
         if (null != res)
         {
            sheet.Cell[1,1].Value = fb.FileName;
         }
      }

用这种方式取得的文件路径如何赋值到表格中，正常赋值好像不太行