<ExtensionAttribute()>
Public Shared Function ToReadOnlyCollection(Of T)( _
   ByVal sequence As IEnumerable(Of T) _
) As ReadOnlyCollection(Of T)

Dim sequence As IEnumerable(Of T)
Dim value As ReadOnlyCollection(Of T)
 
value = IEnumerableExtensions.ToReadOnlyCollection(Of T)(sequence)

[ExtensionAttribute()]
public static ReadOnlyCollection<T> ToReadOnlyCollection<T>( 
   IEnumerable<T> sequence
)

public function ToReadOnlyCollection( 
    sequence: IEnumerable
): ReadOnlyCollection; static; 

ExtensionAttribute()
public static function ToReadOnlyCollection( 
   sequence : IEnumerable
) : ReadOnlyCollection;

[ExtensionAttribute()]
public: static ReadOnlyCollection<T*>* ToReadOnlyCollection<T>( 
   IEnumerable<T*>* sequence
) 

[ExtensionAttribute()]
public:
static ReadOnlyCollection<T^>^ ToReadOnlyCollectiongeneric<typename T>
( 
   IEnumerable<T^>^ sequence
)