Getting error while serializing using JavaScriptSerializer in c#

Question

When I am serializing using JavaScriptSerializer in wcf service it gives me below error for defined code.

Code:

DataCollection<Entity> detailqueryentityCollection = _serviceProxy.RetrieveMultiple(detailquery).Entities;
if (detailqueryentityCollection.Count > 0)
{
    listdata = new JavaScriptSerializer().Serialize(detailqueryentityCollection);
}                                    

Error:

Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.

I also add below code in web.config but it doesn't work.

<system.web.extensions>
    <scripting>
      <webServices>
        <jsonSerialization maxJsonLength="500000000"/>
      </webServices>
    </scripting>
  </system.web.extensions>

Please suggest me any solutions.

Answer 1

When instantiating the class yourself, you need to add the value to the MaxJsonLength property of the class:

var jss = new JavaScriptSerializer();
jss.MaxJsonLength = 500000000;
listData = jss.Serialize(detailqueryentityCollection);