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c# - 使用 Ajax 在 C# 中添加 session 变量

转载 作者:太空宇宙 更新时间:2023-11-03 19:14:16 24 4
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我需要使用 ajax 将变量添加到 session 状态中,当我尝试这样做时它不起作用。谁能帮我解决这个问题。当我单击按钮时,它会重定向到 Travellerinfo.aspx 页面

下面是我的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) {

$.ajax({
type: "POST",
url: "test.aspx/addSession",
data: "{'hotelcode':'" + hotelcode + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
window.location.href = "Hotelresul.aspx";
},
error: function (err) {
window.location.href = "TravellerInfo.aspx";
}
});

}

</script>
</head>
<body>
<form id="form1" runat="server">

<div>

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

</html>

CS 测试.aspx

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 = "testbook('15000')";
form1.Controls.Add(testbtn);

}
[WebMethod(EnableSession = true)]
public static void addSession(String hotelcode)
{
HttpContext.Current.Session.Add("hotelcode", hotelcode);

}


}
}

最佳答案

一定是

[WebMethod (EnableSession=true)]
public static void addSession(String hotelcode)
{
HttpContext.Current.Session.Add("hotelcode", hotelcode);

}

请注意:该方法必须是公共(public)的、静态的和EnableSession属性必须为真。

编辑 1:

添加'return false'以防止按钮的默认功能。按钮的默认功能是将表单发布到服务器。或者,event.preventDefault()可用于阻止默认功能。

<script type="text/javascript">
function testbook(hotelcode) {

$.ajax({
type: "POST",
url: "test.aspx/addSession",
data: "{'hotelcode':'" + hotelcode + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
window.location.href = "Hotelresul.aspx";
},
error: function (err) {
window.location.href = "TravellerInfo.aspx";
}
});


return false;

}

</script>

编辑 2:

 protected void Page_Load(object sender, EventArgs ea)
{
ImageButton testbtn = new ImageButton();
testbtn.OnClientClick = "return testbook('15000')";
form1.Controls.Add(testbtn);

}

关于c# - 使用 Ajax 在 C# 中添加 session 变量,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18267546/

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