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POGetting invalid string [ ] around my JSON outputted from using the JavascriptSerializer class
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  1. POGetting invalid string [ ] around my JSON outputted from using the JavascriptSerializer class
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    copied!<p>Currently I'm using the helper methods outlined here to return some JSON from my .ashx: <a href="http://weblogs.asp.net/scottgu/archive/2007/10/01/tip-trick-building-a-tojson-extension-method-using-net-3-5.aspx" rel="nofollow noreferrer">http://weblogs.asp.net/scottgu/archive/2007/10/01/tip-trick-building-a-tojson-extension-method-using-net-3-5.aspx</a></p> <p>Problem is, I get [ and ] wrapped around my JSON which is malformed...jQuery cannot pick it up in the callback:</p> <pre><code>[{"ImageTag":"&amp;lt;img src=&amp;quot;http://www.xxx.com/image/473.jpg&amp;quot; alt=&amp;quot;&amp;quot;&amp;gt;"},{"ImageTag":"&amp;lt;img src=&amp;quot;http://www.xxx.com/image/485.jpg&amp;quot; alt=&amp;quot;&amp;quot;&amp;gt;"}] </code></pre> <p>So I don't know why I get brackets around this. Here is my implementation:</p> <pre><code>private void GetImagesJSON(HttpContext context) { context.Response.ContentType = "text/plain"; context.Response.Charset = Encoding.UTF8.ToString(); int i = 1; List&lt;Product&gt; products = GetTestProducts(); List&lt;CtImageList&gt; imageList = new List&lt;CtImageList&gt;(); foreach(Product p in products) { string imageTag = HttpUtility.HtmlEncode(string.Format(@"&lt;img src=""{0}"" alt=""""&gt;", ImageUrl(p.Image, false))); imageList.Add(new CtImageList{ImageTag = imageTag}); i++; } string jsonString = imageList.ToJSON(); context.Response.Write(jsonString); } </code></pre> <p>Here is the callback function in jQuery which can't parse that because of the starting [ and ]:</p> <pre><code>function itemLoadCallback(carousel, state) { // Only load items if they don't already exist if (carousel.has(carousel.first, carousel.last)) { return; } $.getJSON("http://localhost:59396/xxx/CHandler.ashx?action=productsjson", function(data) { $.each(data.items, function(i, item) { alert('got here'); carousel.add(i, mycarousel_decodeEntities(item.ImageTag)); if (i == 3) return false; }); }); }; </code></pre>
 

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