使用Ajax POST将Javascript数组传递给C#代码隐藏

Passing Javascript Array to C# Code Behind using Ajax POST

本文关键字:代码 隐藏 数组 Ajax POST Javascript 使用      更新时间:2023-09-26

我正在尝试使用ajax post-back将javascript数组传递给C#代码。但当我尝试这个时,它没有起作用。我在下面附上了我的代码。有人能帮我吗??

test.aspx

 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="test.aspx.cs" Inherits="hotelbeds.test" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>jQuery UI Tooltip - Custom animation demo</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css" />
<script type="text/javascript">
    function testbook(hotelcode) {
        alert("clicked");
        //var values = {"1","2","3"};
        var mycars = new Array();
        mycars[0] = "Saab";
        mycars[1] = "Volvo";
        mycars[2] = "BMW";
        var theIds = JSON.stringify(mycars);
        alert(theIds);
        $.ajax({
            type: "POST",
            url: "test.aspx/Done",
            contentType: "application/json; charset=utf-8",
            data: "{ 'ids':'"+ theIds +"'}",
         dataType: "json",
         success: function (result) {
             alert('Yay! It worked!');               
         },
         error: function (result) {
             alert('Oh no :(');
         }
        });

        return false;
    }
</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    </div>
    </form>
</body>
</html>

代码隐藏文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Web.Services;
using System.Configuration;
using System.Drawing;
namespace hotelbeds
{
    public partial class test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs ea)
        {
            ImageButton testbtn = new ImageButton();
            testbtn.OnClientClick = "return testbook('15000')";
            form1.Controls.Add(testbtn);
        }
        [WebMethod]
        public static void done(string[] ids)
        {
            String[] a = ids;
        }

    }
}

当我按照下面的方式更改网络方法时,它没有任何问题。但对我来说没用。

  [WebMethod]
        public static void done(string ids)
        {
            String a = ids;
        }

错误的json格式:

"{ 'ids':'"+ theIds +"'}"

使用双引号。或者做得更好:

JSON.stringify({ ids: mycars });

试试这个

    [WebMethod]
    public static void done(List<string> ids)
    {
        String[] a = ids.ToArray();
    }

试试这个。我已经成功地传递了javascript数组。唯一的限制是带有params关键字的对象必须是传递给web方法的最后一个参数。

http://msdn.microsoft.com/en-us/library/w5zay9db.aspx

[WebMethod]
public static void PassArray(params object[] list)
{
    int i = 0;
    while (i < list.Length)
    {
        //do your thing here
        i++
    }
}