ajax 总结

1.ajax.dll

Behind Code:

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace Jquery_AJax
{
    public partial class AjaxDll : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Ajax.Utility.RegisterTypeForAjax(typeof(AjaxDll));
        }

        [Ajax.AjaxMethod()]
        public int ServerSideAdd(int firstNumber,int secondNumber)
        {
            return firstNumber + secondNumber;
        }

        [Ajax.AjaxMethod()]
        public string[] StrArr()
        {
            string[] arr=new string[]{"John","Mink"};
            return arr;
        }
    
    }
}

 

JavaScriptCode:

 

<script language="javascript" type="text/javascript">
        function FontAnswerServer() {
//            var response = AjaxDll.ServerSideAdd(100, 99);
//            alert(response.value);

            AjaxDll.ServerSideAdd(100, 99, ServerSideAdd_CallBack);
           
        }
        function ServerSideAdd_CallBack(response) {
            if (response.error != null) {
                alert(response.error);
                return;
            }
            alert(response.value);
        }
        function ShowArr() {
            var response = AjaxDll.StrArr().value;
            var sel = document.getElementById("sel");
            for (var i = 0; i < response.length; i++) {
                if (sel.options.length>=response.length) {
                    return;
                }
                // var option = document.createElement("<option value=Name+" + i + ">" + response[i] + "</option>");.cr
                var option = document.createElement("<option>");
                sel.options.add(option);
                option.innerText = response[i];
                option.value = "Name" + i;
            }

            alert(sel.options[0].innerText);
           // alert(response.value);

        }
       
    </script>