Public Overrides Function GetProperty(Of T As Class) ( _
    context As BindingContext _
) As T

Dim instance As HttpTransportBindingElement
Dim context As BindingContext
Dim returnValue As T

returnValue = instance.GetProperty(context)

public override T GetProperty<T>(
    BindingContext context
)
where T : class

public:
generic<typename T>
where T : ref class
virtual T GetProperty(
    BindingContext^ context
) override

JScript does not support generic types or methods.