FirstIndexOfMany Generic Method

Wintellect PowerCollections

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[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

Finds the index of the first item in a list equal to one of several given items. A passed IEqualityComparer is used to determine equality.

Namespace: Wintellect.PowerCollections
Assembly:  PowerCollections (in PowerCollections.dll)

Syntax

C#
public static int FirstIndexOfMany<T>(
	IList<T> list,
	IEnumerable<T> itemsToLookFor,
	IEqualityComparer<T> equalityComparer
)
Visual Basic (Declaration)
Public Shared Function FirstIndexOfMany(Of T) ( _
	list As IList(Of T), _
	itemsToLookFor As IEnumerable(Of T), _
	equalityComparer As IEqualityComparer(Of T) _
) As Integer
Visual C++
public:
generic<typename T>
static int FirstIndexOfMany (
	IList<T>^ list, 
	IEnumerable<T>^ itemsToLookFor, 
	IEqualityComparer<T>^ equalityComparer
)

Parameters

list
IList<(Of <T>)>
The list to search.
itemsToLookFor
IEnumerable<(Of <T>)>
The items to search for.
equalityComparer
IEqualityComparer<(Of <T>)>
The IEqualityComparer<T> used to compare items for equality. Only the Equals and GetHashCode methods will be called.

Return Value

The index of the first item equal to any of the items in the collection itemsToLookFor. -1 if no such item exists in the list.

Type Parameters

T

See Also

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