protected void gv_Result_RowCommand(object sender, GridViewCommandEventArgs e)
 {
     if (e.CommandName.Equals("Del"))
     {
         string id     = e.CommandArgument.ToString();
         string result = StudentBusiness.deleteStudent(Int32.Parse(id));
         if (!result.Equals("ok"))
         {
             ScriptManager.RegisterStartupScript(UpdatePanel1, this.GetType(), "alter", "alert('删除失败,请重新再试!')", true);
             return;
         }
         LogInfoBusiness.AddLogInfo(Convert.ToInt32(log_userid), DateTime.Now, Convert.ToInt32(log_usertype), log_username, 3, "在校本科生信息", log_ip, log_account);//删除添加日志 操作类型->3
         RefreshView(0);
     }
 }