Finds index of the first element satisfying some predicate after or at some start index.

Namespace: Flinq
Assembly: Flinq (in Flinq.dll) Version: 1.0.2.0 (1.0.2.0)

Syntax

C#
public static int IndexWhere<A>(
	this IEnumerable<A> source,
	Func<A, bool> p,
	int from
)

Parameters

source
Type: System.Collections.Generic..::..IEnumerable<(Of <(<'A>)>)>
The input sequence.
p
Type: System..::..Func<(Of <(<'A, Boolean>)>)>
The predicate used to test elements.
from
Type: System..::..Int32
The start index.

Type Parameters

A
The type of the elements in the input sequence.

Return Value

Type: Int32
The index >= from of the first element of this list that satisfies the predicate p, or -1, if none exists.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable<(Of <(<'A>)>)>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

See Also