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.NET Development
.NET Framework 3.5
 Invoke Method
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
ISynchronizeInvoke..::.Invoke Method

Updated: November 2007

Synchronously executes the delegate on the thread that created this object and marshals the call to the creating thread.

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

Visual Basic (Declaration)
Function Invoke ( _
    method As Delegate, _
    args As Object() _
) As Object
Visual Basic (Usage)
Dim instance As ISynchronizeInvoke
Dim method As [Delegate]
Dim args As Object()
Dim returnValue As Object

returnValue = instance.Invoke(method, _
    args)
C#
Object Invoke(
    Delegate method,
    Object[] args
)
Visual C++
Object^ Invoke(
    Delegate^ method, 
    array<Object^>^ args
)
J#
Object Invoke(
    Delegate method,
    Object[] args
)
JScript
function Invoke(
    method : Delegate, 
    args : Object[]
) : Object

Parameters

method
Type: System..::.Delegate

A Delegate that contains a method to call, in the context of the thread for the control.

args
Type: array<System..::.Object>[]()[]

An array of type Object that represents the arguments to pass to the given method. This can be nullNothingnullptra null reference (Nothing in Visual Basic) if no arguments are needed.

Return Value

Type: System..::.Object

An Object that represents the return value from the delegate being invoked, or nullNothingnullptra null reference (Nothing in Visual Basic) if the delegate has no return value.

Unlike BeginInvoke, this method operates synchronously, that is, it waits until the process completes before returning. Exceptions raised during the call are propagated back to the caller.

Use this method when calling a method from a different thread to marshal the call to the proper thread.

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, 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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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