public abstract class CrudController<TEntity> : ApiController
where TEntity : BaseEntity

Public MustInherit Class CrudController(Of TEntity As BaseEntity)
	Inherits ApiController

generic<typename TEntity>
where TEntity : BaseEntity
public ref class CrudController abstract : public ApiController

[<AbstractClassAttribute>]
type CrudController<'TEntity when 'TEntity : BaseEntity> =  
    class
        inherit ApiController
    end