M_CodeJam_Collections_ArrayExtensions_FindIndex__1

ArrayExtensions.FindIndex(T) Method (T[], Int32, Int32, Predicate(T))

Searches for an element that matches the conditions defined by the specified predicate, and returns the zero-based index of the first occurrence within the range of elements in the Array that starts at the specified index and contains the specified number of elements.

Namespace: CodeJam.Collections
Assembly: CodeJam (in CodeJam.dll) Version: 1.1.0.0 (1.1.0.0)

Syntax

C#

public static int FindIndex<T>(
	this T[] array,
	int startIndex,
	int count,
	Predicate<T> match
)

VB

<ExtensionAttribute>
Public Shared Function FindIndex(Of T) ( 
	array As T(),
	startIndex As Integer,
	count As Integer,
	match As Predicate(Of T)
) As Integer

F#

[<ExtensionAttribute>]
static member FindIndex : 
        array : 'T[] * 
        startIndex : int * 
        count : int * 
        match : Predicate<'T> -> int 

Parameters

 

array

Type: T[]
The one-dimensional, zero-based Array to search.

startIndex

Type: System.Int32
The zero-based starting index of the search.

count

Type: System.Int32
The number of elements in the section to search.

match

Type: System.Predicate(T)
The Predicate(T) that defines the conditions of the element to search for.

Type Parameters

 

T

The type of the elements of the array.

Return Value

Type: Int32
The zero-based index of the first occurrence of an element that matches the conditions defined by match, if found; otherwise, –1.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type . 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).

Exceptions

 

Exception	Condition
ArgumentNullException	array is null.-or-match is null.
ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for array.-or-count is less than zero.-or-startIndex and count do not specify a valid section in array.

See Also

Reference

ArrayExtensions Class
FindIndex Overload
CodeJam.Collections Namespace