Public Class StandardBindingCollectionElement(Of TStandardBinding As Binding, TBindingConfiguration As {New, StandardBindingElement}) _
    Inherits BindingCollectionElement

Dim instance As StandardBindingCollectionElement(Of TStandardBinding, TBindingConfiguration)

public class StandardBindingCollectionElement<TStandardBinding, TBindingConfiguration> : BindingCollectionElement
where TStandardBinding : Binding
where TBindingConfiguration : new(), StandardBindingElement

generic<typename TStandardBinding, typename TBindingConfiguration>
where TStandardBinding : Binding
where TBindingConfiguration : gcnew(), StandardBindingElement
public ref class StandardBindingCollectionElement : public BindingCollectionElement

JScript does not support generic types or methods.