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jquery - Increase json response maxJsonLength in MVC 4

I am getting following error in razor view engine MVC4(.net 4.5) application when loading a large JSON response form server at

Error during serialization or deserialization using the JSON JavaScriptSerializer.The length of the string exceeds the value set on the maxJsonLength property at @Html.Raw(Json.Encode(jsondata)”

I have tried by setting MaxJsonLength property in my web.config:

configuration> 
   <system.web.extensions>
       <scripting>
           <webServices>
               <jsonSerialization maxJsonLength="2147483644"/>
           </webServices>
       </scripting>
   </system.web.extensions>
</configuration> 

Tried following at server side while sending JSON response as well.

 return new JsonResult()
    {
        Data = data,
        ContentType = contentType,
        ContentEncoding = contentEncoding,
        JsonRequestBehavior = behavior,
        MaxJsonLength = Int32.MaxValue
    };

Also tried the solution listed hare: http://brianreiter.org/2011/01/03/custom-jsonresult-class-for-asp-net-mvc-to-avoid-maxjsonlength-exceeded-exception/. But nothing worked for me :(

Can some suggest me how to avoid this error or how to increase the Jason response max length?

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1 Answer

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by (71.8m points)

Somehow I get rid of this error by using following code in view.

@{
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
serializer.MaxJsonLength = Int32.MaxValue;
}
<script type="text/javascript">
var entries = @Html.Raw(serializer.Serialize(Model.FeedEntries));    
</script>

This was not working at server side at least for me.


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