How to pass length value in query string?

Question

 i get this error when i pass a value in querystring .i tried below code but the same error exists.How to fix this error

 

<configuration>
<system.webServer>
<security>
<requestFiltering>
<requestLimits maxQueryString="3000" maxUrl="1000" /> /* Change the Url limit here */
</requestFiltering>
</security>
</system.webServer>
</configuration>