Question

我试图在过去三周内诋毁facebook注册，检查用户名avaiablity我正在使用jquery和JSON，参与此http://developers.facebook.com/docs/plugins/registration/advanced/指南，使用以下代码我可以将用户名发送给我服务器是aac #page来检查它是否可用，但如何告知？问题是我不知道如何从c＃page发送消息到调用scritp，以及如何使用在这里读取它。

<body>

<div id="fb-root"></div>

<script src="http://connect.facebook.net/en_US/all.js#appId=134552926621797&xfbml=1"></script>

<fb:registration redirect-uri="http://dev2.urecommendme.com/test3.aspx" 
  fields='[{"name":"name"},
           {"name":"username","description":"Username","type":"text"}]' 
  onvalidate="validate_async"></fb:registration> 

<script src="http://code.jquery.com/jquery-1.4.4.min.js"></script>
<script>
    function validate_async(form, cb) {
        $.getJSON('http://dev2.urecommendme.com/test01.aspx?username=' + form.username + '&callback=?',
    function (response) {
        if (response.error) {
            // Username isn't taken, let the form submit
           cb();
        }
        alert(cb.toString());

    });
    }
</script> 
</body>

返回消息应该是这样的

<script src="http://graph.facebook.com/shahidgfdgd?callback=jsonp1307613510850">
jsonp1307613510850({
"error": {
"type": "OAuthException",
"message": "(#803) Some of the aliases you requested do not exist: shahid"
}
});
</script>

这是我的第三个星期，请指导我，所以我可以完成这项任务，谢谢。

Answer 1

FB注册页面应如下所示

<body>

<div id="fb-root"></div>

<script src="http://connect.facebook.net/en_US/all.js#appId=134552926621785&xfbml=1"></script>

<fb:registration redirect-uri="http://dev2.urecommendme.com/test3.aspx" 
  fields='[{"name":"name"},
           {"name":"username","description":"Username","type":"text"}]' 
  onvalidate="validate_async"></fb:registration> 

<script src="http://code.jquery.com/jquery-1.4.4.min.js"></script>
<script>
    function validate_async(form, cb) {
        $.getJSON('test02.aspx?username=' + form.username,
    function (response) {
        if (response.error) {
            // Username isn't taken, let the form submit
            cb();
        }
        cb({ username: 'That username is taken' });
    });
    }
</script> 

</body>

请注意我在validate_async（form，cb）函数中提到的服务器文件名（它没有完整的URL，因为两个文件都在同一个根目录下）


        $.getJSON('test02.aspx?username=' + form.username,

Test02.aspx页面应如下所示

注意test02.aspx中没有html，body或head标签（Test02.aspx.cs）应该看起来像


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Newtonsoft.Json;
using System.Text;

public partial class test02 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e1)
    {
        StringBuilder JSON = new StringBuilder();

        //validate from your database and execute one of the following two lines.

       JSON.Append("{\"error\":\"Exist\"}"); // username is taken

     //  JSON.Append("{\"anything\":\"Not Exist\"}");


        Response.Write(JSON.ToString());

        Response.End(); 

    }
}

facebook注册插件Async Validation

1 个答案: