Array.ForEach(T) Method (System)

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ForEach(T) Method

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

Array..::.ForEach<(Of <(T>)>) Method

Performs the specified action on each element of the specified array.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

Visual Basic (Declaration)

Public Shared Sub ForEach(Of T) ( _
    array As T(), _
    action As Action(Of T) _
)

Visual Basic (Usage)

Dim array As T()
Dim action As Action(Of T)

Array.ForEach(array, action)

public static void ForEach<T>(
    T[] array,
    Action<T> action
)

Visual C++

public:
generic<typename T>
static void ForEach(
    array<T>^ array, 
    Action<T>^ action
)

JScript

JScript does not support generic types or methods.

Type Parameters

T: The type of the elements of the array.

Parameters

array: Type: array<T>[]()[]
The one-dimensional, zero-based Array on whose elements the action is to be performed.

action: Type: System..::.Action<(Of <(T>)>)
The Action<(Of <(T>)>) to perform on each element of array.

Exceptions

Exception	Condition
ArgumentNullException	array is nullNothingnullptra null reference (Nothing in Visual Basic). -or- action is nullNothingnullptra null reference (Nothing in Visual Basic).

Exception

Condition

ArgumentNullException

array is nullNothingnullptra null reference (Nothing in Visual Basic).

-or-

action is nullNothingnullptra null reference (Nothing in Visual Basic).

Remarks

The Action<(Of <(T>)>) is a delegate to a method that performs an action on the object passed to it. The elements of array are individually passed to the Action<(Of <(T>)>).

This method is an O(n) operation, where n is the Length of array.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference