JS中获取数据库中的值的方法

public class AjaxMethod www.jb51.net
{
    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>