private string CheckInfo() { bool isEdit = false; if (Request.Form["state"] == "edit") { isEdit = true; } DataSet ds = LeaveStockInfoManage.CheckInfo(Request.Form["dataType"]); int standartNumber = 0;//插入模式不允许查询到记录 if (isEdit) { standartNumber = 1;//编辑模式最多查询到1条记录 } string res = "数据库读取失败!"; if (ds != null) { if (ds.Tables[0].Rows.Count > standartNumber) { res += "数据模板名称已存在,请重新输入!"; } else { res = "T"; } } return(res); }