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    <p>I've found an solution. I use an solution of Steve Gentile, <em><a href="http://blogger.forgottenskies.com/?p=252" rel="noreferrer">jQuery and ASP.NET MVC – sending JSON to an Action – Revisited</a></em>.</p> <p>My ASP.NET MVC view code looks like:</p> <pre><code>function getplaceholders() { var placeholders = $('.ui-sortable'); var results = new Array(); placeholders.each(function() { var ph = $(this).attr('id'); var sections = $(this).find('.sort'); var section; sections.each(function(i, item) { var sid = $(item).attr('id'); var o = { 'SectionId': sid, 'Placeholder': ph, 'Position': i }; results.push(o); }); }); var postData = { widgets: results }; var widgets = results; $.ajax({ url: '/portal/Designer.mvc/SaveOrUpdate', type: 'POST', dataType: 'json', data: $.toJSON(widgets), contentType: 'application/json; charset=utf-8', success: function(result) { alert(result.Result); } }); }; </code></pre> <p>and my controller action is decorated with an custom attribute</p> <pre><code>[JsonFilter(Param = "widgets", JsonDataType = typeof(List&lt;PageDesignWidget&gt;))] public JsonResult SaveOrUpdate(List&lt;PageDesignWidget&gt; widgets </code></pre> <p>Code for the custom attribute can be found <a href="http://www.forgottenskies.com/MvcJson.zip" rel="noreferrer">here</a> (the link is broken now).</p> <p>Because the link is broken this is the code for the JsonFilterAttribute</p> <pre><code>public class JsonFilter : ActionFilterAttribute { public string Param { get; set; } public Type JsonDataType { get; set; } public override void OnActionExecuting(ActionExecutingContext filterContext) { if (filterContext.HttpContext.Request.ContentType.Contains("application/json")) { string inputContent; using (var sr = new StreamReader(filterContext.HttpContext.Request.InputStream)) { inputContent = sr.ReadToEnd(); } var result = JsonConvert.DeserializeObject(inputContent, JsonDataType); filterContext.ActionParameters[Param] = result; } } } </code></pre> <p>JsonConvert.DeserializeObject is from Json.NET</p> <p>Link: <a href="http://james.newtonking.com/projects/json/help/index.html?topic=html/SerializingJSON.htm" rel="noreferrer">Serializing and Deserializing JSON with Json.NET</a></p>
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    1. POHow to post an array of complex objects with JSON, jQuery to ASP.NET MVC Controller?
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    1. USJames Newton-King
    1. USJSC
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    1. POHow to post an array of complex objects with JSON, jQuery to ASP.NET MVC Controller?
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    1. CONice work here!
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      1. USjeffreypriebe
    2. COLooks great - The blog post and custom attribute code links don't work anymore - can you repost?
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      1. USlittlechris
    3. COThis solution requires changes on the client and server side. I know you needed this long ago, but I may as well provide a link to a different approach, that uses a simple jQuery plugin that makes it possible to convert whatever Javascript object into a form that default model binder understands and model binds to parameters. No filters needed. http://erraticdev.blogspot.com/2010/12/sending-complex-json-objects-to-aspnet.html I don't know how you solved validation errors but I have a solution for that as well: http://erraticdev.blogspot.com/2010/11/handling-validation-errors-on-ajax.html
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      1. USRobert Koritnik
 

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