c# - Custom ErrorPage is not Working with [HandleError(ExceptionType = typeof(NotImplementedException), View = "CustomErrorView")] -

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i trying handle exception in asp.net mvc application using [handleerror].

i changed in web config <customerrors mode="on" />

its not working cutom error notimplementedexception

i have kept customerrorview in shared folder.

please help....

namespace mvcapplicationerrorhandling.controllers {     [handleerror(order = 2)]     [handleerror(exceptiontype = typeof(notimplementedexception), view = "customerrorview")]     public class homecontroller : controller     {         public actionresult index()         {             viewbag.message = "welcome asp.net mvc!";              return view();         }          public actionresult about()         {             return view();         }          public actionresult throwexception()         {             throw new applicationexception();         }          public actionresult errordemo()         {             string strtemp;             object obj = null;             strtemp = obj.tostring();              return view();         }          public actionresult thrownotimplemented()         {             throw new notimplementedexception();         }     } }


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