Truncated data coming in response while calling Get in Rest WCF.

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I am pretty new to Restful WCF services so bear with me. I am trying to build a simple RESTful WCF service that returns a List of Students as json response.

In Response Approx 3842 Records are Showing when i invoke the same method in Browser but in actual List contains approx 9000 records.

Why response is truncated?

Posted 17-Aug-14 23:04pm

Bhupendra Chauhan

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db7uk · Accepted Answer · 2014-08-18T01:24:00

hi one of two things....

Try setting maxJsonLength property on your web.config:

XML

<configuration>
   <system.web.extensions>
       <scripting>
           <webservices>
               <jsonserialization maxjsonlength="Large number here" />
           </webservices>
       </scripting>
   </system.web.extensions>
</configuration>

or because it is WCF you may want to look at the service behaviours. Try setting the maxitemsinobjectgraph property.

XML

<behaviors>
        <servicebehaviors>
            <behavior name="metadataBehavior">
                <servicemetadata httpgetenabled="true" httpgeturl="" />
                <servicedebug includeexceptiondetailinfaults="false" />
                <datacontractserializer maxitemsinobjectgraph="2147483646" />
            </behavior>
        </servicebehaviors>
    </behaviors>

you may find other examples from here :

http://geekswithblogs.net/mnf/archive/2013/06/02/response-for-rest-method-was-truncated-because-default-maxitemsinobjectgraph-was.aspx[^]