public class FilterEnum<T> : Filter
where T : struct, new(), IComparable

Public Class FilterEnum(Of T As {Structure, New, IComparable})
	Inherits Filter

generic<typename T>
where T : value class, gcnew(), IComparable
public ref class FilterEnum : public Filter

type FilterEnum<'T when 'T : struct, new() and IComparable> =  
    class
        inherit Filter
    end