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如何从Aspx页面发送Json数据

[英]How to send Json Data from Aspx page

I tried to use TokenInput Jquery for multiple value autocomplete where it requires the JSON response as input data 我尝试将TokenInput Jquery用于多值自动完成功能,在此它需要JSON响应作为输入数据

http://loopj.com/jquery-tokeninput/ http://loopj.com/jquery-tokeninput/

I am using ASPX page as source 我正在使用ASPX页面作为源

<script type="text/javascript" >
    $(document).ready(function() {

    $("#txtTest").tokenInput("Complete.aspx", {
        theme: "facebook"
    });

    });


</script>

Edited From Here Question: How to provide the JSON data from a aspx page in the desired format as i have datatable with values according to Querystring from Complete.aspx 从这里编辑问题:如何从aspx页面以所需格式提供JSON数据,因为我具有根据Complete.aspx的Querystring带有值的数据表

 protected void Page_Load(object sender, EventArgs e)
{
    if (!string.IsNullOrEmpty(Request.QueryString["q"]))
    {
        string json = "[{\"Id\":\"1\",\"name\": \"Test 1\"},{\"Id\":\"2\",\"name\": \"Test 2\"}]";
        Response.Clear(); 
        Response.ContentType = "application/json; charset=utf-8"; 
        Response.Write(json); 
        Response.End();              

    }
}  

Any help will be appreciated. 任何帮助将不胜感激。

You should take a look at WCF. 您应该看看WCF。 WCF has native support for returning JSON and you don't have to worry about string concatenation or HTTP content types. WCF具有返回JSON的本机支持,因此您不必担心字符串连接或HTTP内容类型。

Alternative to the WCF , you can create WebMethod in .aspx. 替代WCF ,您可以在.aspx中创建WebMethod

   [WebMethod]
    public static string Info()
    {
        JavaScriptSerializer js = new JavaScriptSerializer();
        string result = js.Serialize(new string[] { "one", "two", "three" });
        return result;
    }

and request this WebMethod via Ajax call. 并通过Ajax调用请求此WebMethod。

<script type="text/javascript">
        $(function () {
            $("#button1").click(function () {
                $.ajax({
                    url: "Default.aspx/Info",
                    data: "{}",
                    contentType: "application/json",
                    success: function (data) {
                        alert(data.d);
                    },
                    type: "post",
                    dataType : "json"
                });
            });
        });
</script>

EDIT: 编辑:

Code-behind - Page_Load handler (JsonPage.aspx) 代码隐藏-Page_Load处理程序(JsonPage.aspx)

  string json = "[{\"name\":\"Pratik\"},{\"name\": \"Parth\"}]";
  Response.Clear();
  Response.ContentType = "application/json; charset=utf-8";
  Response.Write(json);
  Response.End();

and request the JsonPage.aspx via TokenInput jQuery . 并请求JsonPage.aspx经由TokenInput jQuery (Sample.aspx & JsonPage.aspx are in same folder) (Sample.aspx和JsonPage.aspx在同一文件夹中)

<script type="text/javascript">
        $(function () {
            $("#txt1").tokenInput("JsonPage.aspx");
        });
</script>

<body>
 <input type="text" id="txt1"/>
</body>

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