/*---------------后台必须是静态方法-------------*/ /*---------------前台*-----------------/ $(function() {         $("#btnOK").click(function() {             $.ajax({                 type: "Post",                 url: "demo.aspx/GetStr",                 //方法传参的写法一定要对，str为形参的名字,str2为第二个形参的名字                  data: "{'str':'I am','str2':'XXX'}",                 contentType: "application/json; charset=utf-8",                 dataType: "json",                 success: function(data) {                     //return data                        alert(data.d);                 },                 error: function(err) {                     alert(err);                 }             });             //禁用按钮的提交              return false;         });     });

/*---------------前台*-----------------/

/*---------------后台*-----------------/

[WebMethod]     public static string GetStr(string str, string str2)     {         return str + str2;     }

/*---------------后台*-----------------/

/*---------------后台必须是静态方法-------------*/ /*---------------后台可以是非静态方法-----------*/ /*---------------前台-------------------------*/

$.ajax({

type: "POST",

url: "McuHandler.ashx",

data: { page: 'ActivityEnrolment.aspx', method: 'GetActivityItemById', val: coaInfo },

success: function (msg) {

if ($("#TravelInsuranceValueLabelForInsert")[0] != undefined) {

$("#TravelInsuranceValueLabelForInsert")[0].innerText = msg;

}

if ($("#TravelInsuranceValueLabelForEdit")[0] != undefined){

$("#TravelInsuranceValueLabelForEdit")[0].innerText = msg;

}

}

});

/*---------------前台-------------------------*/

/*---------------后台-------------------------*/ 1.新增一个ashx文件 2.在ProcessRequest方法中调用非静态方法并返回值

public void ProcessRequest(HttpContext context)

{

var val = context.Request.Form["val"];//GET方式提交就用context.Request.QueryString["val"]

var page = context.Request.Form["page"];

var method = context.Request.Form["method"];

var rtnVal = string.Empty;

context.Response.ContentType = "text/plain";

switch (page)

{

case "ActivityEnrolment.aspx":

switch (method)

{

case "GetActivityItemById":

rtnVal = GetActivityItemById(val);

context.Response.Write(rtnVal.ToFormatDecimalText(DecimalPlace.Two, true));

break;

default:

context.Response.Write("");

break;

}

break;

default:

context.Response.Write("");

break;

}

/*---------------后台-------------------------*/

/*---------------后台可以是非静态方法-----------*/