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JavaScript没有从web方法获取值。使用json或其他便捷类返回对象值
它说未定义位于的CallMe()S值..
我的目标是从Web方法得到一个对象....使用JS中的数据..
什么我是否缺少?
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Script.Services;
public partial class _Default : System.Web.UI.Page
{
Label lblGeneral;
protected void Page_Load(object sender, EventArgs e)
{
lblGeneral = textMessager;
}
[System.Web.Services.WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public static string ShowMessage()
{
return ExternalManager.Write();
}
}
JS
// JScript File
function CallMe()
{
// call server side method
var s = PageMethods.ShowMessage();
s = eval(s);
}
(function() {
var status = true;
var fetchService = function() {
if(status){
CallMe();
status = false;
}
setTimeout(fetchService, 5000);
status = true;
}
window.onload = fetchService;
}())
****使用util类******
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Script.Services;
using System.Web.Script.Serialization;
/// <summary>
/// Summary description for ExternalManager
/// </summary>
public class ExternalManager
{
public ExternalManager()
{
//
// TODO: Add constructor logic here
//
}
public static string Write()
{
string s = "Okay Buddy" + DateTime.Today.ToLongDateString();
JavaScriptSerializer jss = new JavaScriptSerializer();
string serializedPerson = jss.Serialize(s);
return s;
}
}
农机技术: Asp.net 2.0 + Ajax的启用 C#