public class AjaxMethod www.1sucai.cn {     public AjaxMethod()     {         //         //TODO: 在此处添加构造函数逻辑         //     }     [Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.Read)]     public static string GetCardMoney(string cardNo,string cardPwd)     {         string mConn = IConfiguration.getParameter("connectString");         IDBOSQL.IDBO dbo = IDBOSQL.IDBO.getIDBO(mConn);         dbo.openDatabase();         DataSet ds = dbo.executeSelectSql("select Card_Money,Service_Discount,Good_Discount from Table_CardInfo join Dic_CardType on Table_CardInfo.CardType_ID= Dic_CardType.CardType_ID where Card_NO='"+cardNo+"' and Card_Pwd= '"+cardPwd+"'and card_Status='正常'");         DataTable dt = ds.Tables[0];         string  money = dt.Rows[0][0].ToString();         string service_discount = dt.Rows[0][1].ToString();     string good_discount = dt.Rows[0][2].ToString();         dbo.closeDatabase();        return money+","+service_discount+','+good_discount;//此处返回一个多个值拼接成的字符串     } }

moneydiscount= AjaxMethod.GetCardMoney(card, pwd).value; moneydiscount//是一个多个值拼接成的字符串，要获取多个值的话，可以把该字符串转换为一个数组，然后去访问。 arr=moneydiscount.split(",");        //这样的话可以很方便的使用Ajax返回多个值。

document.getElementById("txtCard_Money1").value=arr[0];

<httpHandlers> <add verb="POST,GET" path="ajax/*.ashx" type="Ajax.PageHandlerFactory, Ajax"/> </httpHandlers>