_{在DBGRID中，常需要更新一行中的某一个字段，一个简便的方法如下：}

_{在DBGRID加如下属性：}

 OnCancelCommand = "dgReviews_Cancel" OnEditCommand = "dgReviews_Edit" OnUpdateCommand = "dgReviews_Update"

然后在服务器端加上对应的方法就OK了

protected void dgReviews_Update(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
  {
   TextBox content = (TextBox)e.Item.Cells[3].Controls[1];
   TextBox reply = (TextBox)e.Item.Cells[3].Controls[3];
   Response.Write();
  }

  protected void dgReviews_Edit(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
  {
   dgReviews.EditItemIndex = e.Item.ItemIndex;
   BindList(Request.QueryString["type"].ToString());
  }

  protected void dgReviews_Cancel(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
  {
   dgReviews.EditItemIndex = -1;
   BindList(Request.QueryString["type"].ToString());
  }