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ASP.NET+jQuery, how to deSerialize JSON?

Answer 1

+1 A:

Have you tried using ASP.NET's Sys.Serialization.JavaScriptSerializer's deserialize method?

var result = Sys.Serialization.JavaScriptSerializer.deserialize($strJson);

Alternatively, there is json_parse

var result = json_parse($strJson, [reviver])

This method parses a JSON text to produce an object or array. It can throw a SyntaxError exception.

The optional reviver parameter is a function that can filter and transform the results. It receives each of the keys and values, and its return value is used instead of the original value. If it returns what it received, then the structure is not modified. If it returns undefined then the member is deleted.

Working Example here. Here's the code

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"&gt;&lt;/script&gt;
<script src="http://www.json.org/json_parse.js"&gt;&lt;/script&gt;
<script type="text/javascript">
      $(function() {

            var $strJson =  '[';
            $strJson +=  '{"Code":"a","Name":"Sam","Country":"US"},';
            $strJson +=  '{"Code":"b","Name":"John","Country":"CN"},';
            $strJson +=  '{"Code":"c","Name":"Mary","Country":"TW"}';
            $strJson +=  ']';

            var result = json_parse($strJson);

            $.each(result, function(key, item) {
             alert("Code: " + item.Code + " ,Name: " + item.Name + " ,Country: " + item.Country);
             //Taken the following out as it prevents objects after the first from being "alerted"
             //if ( key == 0) return false; //Prevent infinity loop
             });
      });
</script>
<title>Sandbox</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
</head>
<body>
    <p>Example Page</p>
</body>
</html>

Russ Cam 2009-04-17 07:43:04

Answer 2

A:

I am mig~ just register a account . Thanks Russ Cam~ You are Hero! It work like a charm! This question made me headache over 3 days. I wonder there is a hidden feature (Sys.* namespace) under MS Ajax Library and ScriptManager!!! And thanks you introduce a great js - json_parse.js , it useful when the ASP.NET 1.1 or not base on MS Ajax Project or PHP Project.

SilverNight 2009-04-17 17:36:13

Answer 3

+1 A:

Just use the built-in JavaScript eval method:

$.each(eval('(' + $strJson + ')'), function(key, item) {

Incidentally, you don't need to use the $ sign for variables in JavaScript.

Jon Benedicto 2009-04-17 17:44:13

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