WindowsFormsSynchronizationContext.Send Method

Dispatches a synchronous message to a synchronization context

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public override void Send (
	SendOrPostCallback d,
	Object state
public void Send (
	SendOrPostCallback d, 
	Object state
public override function Send (
	d : SendOrPostCallback, 
	state : Object
Not applicable.



The SendOrPostCallback delegate to call.


The object passed to the delegate.

Exception typeCondition


The destination thread no longer exists.

If the destination thread no longer exists or the value of its Thread.IsAlive property is false, the Send method raises an InvalidAsynchronousStateException. It is up to the caller to determine what further action to take.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0