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POHow to return JSONResult without the browser prompting to save the file?
 

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  1. POHow to return JSONResult without the browser prompting to save the file?
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    <p><strong>EDIT: I've long since moved beyond VS2008, and I haven't had any issues with returning JSON results using MVC 3+. I'd like to mark this question as obsolete, or something to that effect. Perhaps someone will still find value in this and the answers given, but I can't mark them as "correct" since I have no way of testing them.</strong></p> <p>I am new to MVC, and am trying to make a simple site work. I'm starting to wonder if it is really worth it...I could have had this site up and running with "old-school" ASP.Net two or three times already...but that is beside the point ;-)</p> <p>How can I get my controller to return a JSONResult without the browser prompting me to save the response as a file? Here is the JavaScript that calls the action:</p> <pre><code>$("select#PageId").change(function() { var id = $("#PageId &gt; option:selected").attr("value"); $.getJSON('FindCategories/', { PageId: id }, function(data) { if (data.length &gt; 0) { var options = ''; for (c in data) { var cat = data[c]; options += "&lt;option value='" + cat.CategoryId + "'&gt;" + cat.CategoryName + "&lt;/option&gt;"; } $("#CategoryId").removeAttr('disabled').html(options); } else { $("#CategoryId").attr('disabled', true).html(''); } }); }); </code></pre> <p>Here is my controller action:</p> <pre><code>Function GetCategoriesByPage(ByVal PageId As Integer) As JsonResult Dim categories As List(Of Models.WebCategoryLite) = _service.ListCategoriesByPageId(PageId) Dim res As New JsonResult res.Data = categories Return res End Function </code></pre> <p>Fiddler shows me that the JSON is being returned to the browser:</p> <pre><code>HTTP/1.1 200 OK Server: ASP.NET Development Server/9.0.0.0 Date: Mon, 24 Aug 2009 19:43:53 GMT X-AspNet-Version: 2.0.50727 X-AspNetMvc-Version: 1.0 Cache-Control: private Content-Type: application/json; charset=utf-8 Content-Length: 246 Connection: Close [{"CategoryID":1,"CategoryName":"Sample Category"},{"CategoryID":2,"CategoryName":"Another Sample"},{"CategoryID":3,"CategoryName":"Yet Another Sample"}] </code></pre> <p>No matter what browser I try this with, I get a "save file as" prompt.</p> <p>I am running this from inside the Visual Studio 2008 IDE. What do I have to do to make this work, both in the IDE and from IIS?</p> <p>Thanks in advance!</p>
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