前端JS代码
$(document).ready(function () {
$("#in").click(function () {//返回表格數據
var dateF = $("#ApplyDateFrom").val();
$.ajax({
type: "POST",
url: "SurpportDemandManage.aspx/GetUserData",
data: "{ dateFrom:'" + dateF + "'}",
contentType: "application/json; charset=utf-8",
success: function (dt) {
var obj = $.parseJSON(dt.d); //这个数据
var name = obj[0].SUBJECT;
alert(name);
$('#dg').datagrid('loadData', obj);
},
error: function () {
alert('error');
},
failure: function () {
alert('failure');
}
});
});
$("#Button1").click(function () {//返回單純字符串
$.ajax({
type: "POST",
url: "SurpportDemandManage.aspx/GetUser",
contentType: "application/json; charset=utf-8",
success: function (dt) {
alert(11);
alert(eval(dt.d));
},
error: function () {
alert('error');
},
failure: function () {
alert('failure');
}
});
})
})
后台cs代码
[WebMethod]
public static string GetUserData(string dateFrom)
{
string strSP = "hrm_support.surpport_demand_manage_pk.get_surpport_demand_sps";
string strFactoryF = "";
string strFactoryT = "";
string strDateF = "2018-05-25";
string strDateT = "2018-07-25";
string[][] strArry = new string[][] {
new string[]{"v_supported_site","10",strFactoryF},
new string[]{"v_be_supported_site","10",strFactoryT},
new string[]{"V_USER_NO","10",""},
new string[]{"v_begin_date","20",strDateF},
new string[]{"v_end_date","20",strDateT}
};
string res = "";
DataTable dt = cd.GetData(strArry, strSP, out res);
string strJson = JsonConvert.SerializeObject(dt);//直接将DataTable转json
return strJson;
}
[WebMethod]
public static string GetUser()
{
return "US";
}
注意点：
1.后台方法必须加[WebMethod]注释
2.后台方法必须是 public static
3.ajax请求必须是POST
4.ajax需加上contentType: "application/json; charset=utf-8",
5.取得后台返回数据需加上“.d”(害我调半天总取不到数据，后来用浏览器调试才发现被放在“d”里面了)
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