MoreEnumerableLeftJoinTFirst, TSecond, TKey, TResult Method (IEnumerableTFirst, IEnumerableTSecond, FuncTFirst, TKey, FuncTSecond, TKey, FuncTFirst, TResult, FuncTFirst, TSecond, TResult, IEqualityComparerTKey)

public static IEnumerable<TResult> LeftJoin<TFirst, TSecond, TKey, TResult>(
	this IEnumerable<TFirst> first,
	IEnumerable<TSecond> second,
	Func<TFirst, TKey> firstKeySelector,
	Func<TSecond, TKey> secondKeySelector,
	Func<TFirst, TResult> firstSelector,
	Func<TFirst, TSecond, TResult> bothSelector,
	IEqualityComparer<TKey> comparer
)

<ExtensionAttribute>
Public Shared Function LeftJoin(Of TFirst, TSecond, TKey, TResult) ( 
	first As IEnumerable(Of TFirst),
	second As IEnumerable(Of TSecond),
	firstKeySelector As Func(Of TFirst, TKey),
	secondKeySelector As Func(Of TSecond, TKey),
	firstSelector As Func(Of TFirst, TResult),
	bothSelector As Func(Of TFirst, TSecond, TResult),
	comparer As IEqualityComparer(Of TKey)
) As IEnumerable(Of TResult)

public:
[ExtensionAttribute]
generic<typename TFirst, typename TSecond, typename TKey, typename TResult>
static IEnumerable<TResult>^ LeftJoin(
	IEnumerable<TFirst>^ first, 
	IEnumerable<TSecond>^ second, 
	Func<TFirst, TKey>^ firstKeySelector, 
	Func<TSecond, TKey>^ secondKeySelector, 
	Func<TFirst, TResult>^ firstSelector, 
	Func<TFirst, TSecond, TResult>^ bothSelector, 
	IEqualityComparer<TKey>^ comparer
)

[<ExtensionAttribute>]
static member LeftJoin : 
        first : IEnumerable<'TFirst> * 
        second : IEnumerable<'TSecond> * 
        firstKeySelector : Func<'TFirst, 'TKey> * 
        secondKeySelector : Func<'TSecond, 'TKey> * 
        firstSelector : Func<'TFirst, 'TResult> * 
        bothSelector : Func<'TFirst, 'TSecond, 'TResult> * 
        comparer : IEqualityComparer<'TKey> -> IEnumerable<'TResult>