M_CodeJam_Collections_ArrayExtensions_LastIndexOf__1_2

ArrayExtensions.LastIndexOf(T) Method (T[], T, Int32, Int32)

Searches for the specified object and returns the index of the last occurrence within the range of elements in the Array that contains the specified number of elements and ends at the specified index.

Namespace: CodeJam.Collections
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static int LastIndexOf<T>(
	this T[] array,
	T value,
	int startIndex,
	int count
)

VB

<ExtensionAttribute>
Public Shared Function LastIndexOf(Of T) ( 
	array As T(),
	value As T,
	startIndex As Integer,
	count As Integer
) As Integer

F#

[<ExtensionAttribute>]
static member LastIndexOf : 
        array : 'T[] * 
        value : 'T * 
        startIndex : int * 
        count : int -> int 

Parameters

 

array

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

value

Type: T
The object to locate in array.

startIndex

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

count

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

Type Parameters

 

T

The type of the elements of the array.

Return Value

Type: Int32
The zero-based index of the last occurrence of value within the range of elements in array that contains the number of elements specified in count and ends at startIndex, 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.
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
LastIndexOf Overload
CodeJam.Collections Namespace