c# - sitefinity Mvc Widget not redirecting -

i using code below on sitefinity mvc widget redirect index method conrtoller , getting 404 error ideas.

[httppost]         public actionresult editsubjectdetails(elearningsubjectmodel model)         {             return redirecttoaction("index", "prmanagercontroller");         } 

i have found solution

login sitefinity click administartion> settings>advantced>pages , tick enablebackwardcompatabilityforpagesurls , code have added works fine.