public static TSource ElementAt<TSource>(
	this IEnumerable<TSource> collection,
	long index
)

<ExtensionAttribute>
Public Shared Function ElementAt(Of TSource) ( 
	collection As IEnumerable(Of TSource),
	index As Long
) As TSource

public:
[ExtensionAttribute]
generic<typename TSource>
static TSource ElementAt(
	IEnumerable<TSource>^ collection, 
	long long index
)

[<ExtensionAttribute>]
static member ElementAt : 
        collection : IEnumerable<'TSource> * 
        index : int64 -> 'TSource