Protected MustOverride Function ParseValue( _
   ByVal text As String _
) As T

Dim instance As UXUpDownItemsBase(Of T)
Dim text As String
Dim value As T
 
value = instance.ParseValue(text)

protected abstract T ParseValue( 
   string text
)

protected function ParseValue( 
    text: String
): T; abstract; 

protected __abstract function ParseValue( 
   text : String
) : T;

protected: abstract T* ParseValue( 
   string* text
) 

protected:
abstract T^ ParseValue( 
   String^ text
)