Gridview绑定Datatable

 //gridview数据绑定
         if (daTable.Rows.Count == 0)
         {
             daTable.Rows.Add(daTable.NewRow());
             GridView1.DataSource = daTable;
             GridView1.DataBind();
             int nColumnCount = GridView1.Rows[0].Cells.Count;
             GridView1.Rows[0].Cells.Clear();
             GridView1.Rows[0].Cells.Add(new TableCell());
             GridView1.Rows[0].Cells[0].ColumnSpan = nColumnCount;
             GridView1.Rows[0].Cells[0].Text = "无记录";
             GridView1.RowStyle.Height = 30;

             GridView1.RowStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
         }
         else
         {
             GridView1.DataSource = daTable;
             GridView1.DataBind();
         }