This documentation is archived and is not being maintained.

Compiler Error CS0503 

Error Message

The abstract method 'method' cannot be marked virtual

It is redundant to mark a member method as both abstract and virtual because abstract implies virtual.

The following sample generates CS0503:

// CS0503.cs
namespace x
{
   abstract public class clx
   {
      abstract virtual public void f();   // CS0503
   }
}
Show: