MoreEnumerableScanByTSource, TKey, TState Method (IEnumerableTSource, FuncTSource, TKey, FuncTKey, TState, FuncTState, TKey, TSource, TState)

public static IEnumerable<KeyValuePair<TKey, TState>> ScanBy<TSource, TKey, TState>(
	this IEnumerable<TSource> source,
	Func<TSource, TKey> keySelector,
	Func<TKey, TState> seedSelector,
	Func<TState, TKey, TSource, TState> accumulator
)

<ExtensionAttribute>
Public Shared Function ScanBy(Of TSource, TKey, TState) ( 
	source As IEnumerable(Of TSource),
	keySelector As Func(Of TSource, TKey),
	seedSelector As Func(Of TKey, TState),
	accumulator As Func(Of TState, TKey, TSource, TState)
) As IEnumerable(Of KeyValuePair(Of TKey, TState))

public:
[ExtensionAttribute]
generic<typename TSource, typename TKey, typename TState>
static IEnumerable<KeyValuePair<TKey, TState>>^ ScanBy(
	IEnumerable<TSource>^ source, 
	Func<TSource, TKey>^ keySelector, 
	Func<TKey, TState>^ seedSelector, 
	Func<TState, TKey, TSource, TState>^ accumulator
)

[<ExtensionAttribute>]
static member ScanBy : 
        source : IEnumerable<'TSource> * 
        keySelector : Func<'TSource, 'TKey> * 
        seedSelector : Func<'TKey, 'TState> * 
        accumulator : Func<'TState, 'TKey, 'TSource, 'TState> -> IEnumerable<KeyValuePair<'TKey, 'TState>>