.net ajax调用后台方法

发布时间：2020-12-16 01:46:08 所属栏目：百科来源：网络整理

导读：测试-前台%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AjaxTetst.aspx.cs" Inherits="OnlyForTest.AjaxTetst" %!DOCTYPE htmlhtml xmlns="http://www.w3.org/1999/xhtml"head runat="server"meta http-equiv="Content-Type" content="text/ht

测试-前台

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AjaxTetst.aspx.cs" Inherits="OnlyForTest.AjaxTetst" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>

    <script type="text/javascript" src="jquery.min.js"></script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
     <asp:Button ID="btnOK" runat="server" Text="验证用户" />



        <asp:Button ID="Button1" runat="server" Text="时间测试" OnClick="Button1_Click" />
         
    </div>

        <div>
            <asp:DropDownList ClientIDMode="Static" onchange="change(this.value)" ID="DropDownList1" runat="server">
                <asp:ListItem Value="0">请选择</asp:ListItem>

                <asp:ListItem Value="1">测试1</asp:ListItem>
                <asp:ListItem Value="2">测试2</asp:ListItem>
            </asp:DropDownList>

        </div>
       
    </form>
</body>
</html>

<script>

    function change(s)
    {
        
        $.ajax({
            //要用post方式      
            type: "Post",//方法所在页面和方法名      
            url: "AjaxTetst.aspx/DropDownTest",contentType: "application/json; charset=utf-8",data: "{'ddl':'" + s + "'}",dataType: "json",success: function (data) {
                //返回的数据用data.d获取内容   

                var json = eval("(" + data.d + ")");

                alert(json.length);

                for (var i = 0,l = json.length; i < l; i++) {
                    for (var key in json[i]) {
                        alert(key + ':' + json[i][key]);
                    }
                }

            },error: function (err) {
                alert(err);
            }
        });
    }

    $(function () {
        $("#btnOK").click(function () {
            $.ajax({
                //要用post方式      
                type: "Post",//方法所在页面和方法名      
                url: "AjaxTetst.aspx/SayHello",success: function (data) {
                    //返回的数据用data.d获取内容   
                    
                    //alert(data.d);

                    var obj = eval(data.d);

                    //alert(obj);
                    alert(obj[0].firstName);
                    //$.each(function () {
                        
                    //})
                },error: function (err) {
                    alert(err);
                }
            });

            //禁用按钮的提交      
            return false;
        });
    });

</script>

测试-后台


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Services;
using System.Data;
using System.Collections;

namespace OnlyForTest
{
    public partial class AjaxTetst : System.Web.UI.Page
    {
        public string year1 =  "2014";
        public string month1 = "03";
        public string year2 =  "2015";
        public string month2 = "11";

        string dll = "";
        protected void Page_Load(object sender,EventArgs e)
        {
          
        }

        [WebMethod]
        public static string SayHello()
        {
            //return "a";

           

            return "[{ "firstName": "Brett","lastName":"McLaughlin","email": "aaaa" }," +
                   "{ "firstName": "Jason","lastName":"Hunterwang","email": "bbbb"}]";

        }

          [WebMethod]
        public static string DropDownTest(string ddl)
        {

            //return "a";
           
                return "[" +

                 "{ "v": "1","t":"唐军" }," +

                 "{ "v": "2","t":"石峰"}" +

                 "]";
            

           

        }
        

        protected void Button1_Click(object sender,EventArgs e)
        {
            Dictionary<string,string> dic = new Dictionary<string,string>();

            //ArrayList<>

            string str1 = year1+"-"+month1;
            string str2 = year2 + "-" + month2;
            DateTime c1 = Convert.ToDateTime(Convert.ToDateTime(str1).ToString("yyyy-MM"));
            DateTime c2 = Convert.ToDateTime(Convert.ToDateTime(str2).ToString("yyyy-MM"));
            if (c1 > c2)
            {
                DateTime tmp = c1;
                c1 = c2;
                c2 = tmp;
            }
            while (c2 >= c1)
            {
                //MessageBox.Show(c1.Month.ToString());
                //MessageBox.Show(c1.ToString("yyyy-MM"));

                dic.Add(c1.ToString("yyyy-MM"),"0,0");
                c1 = c1.AddMonths(1);
            }




            DataSet ds = DbHelperSQL.Query("select *,convert(char(7),D_datatime,20) as a from d_Data");

             foreach (var item in dic)

            {

              DataRow[] dr=  ds.Tables[0].Select("a='" + item.Key+"'");
              if (dr.Length > 0 && dr != null)
              { 
                  
              }

            }

           
        }  
    }
}

（编辑：李大同）

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