This documentation is archived and is not being maintained.

Barrier.AddParticipant Method

Notifies the Barrier that there will be an additional participant.

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

public long AddParticipant()

Return Value

Type: System.Int64
The phase number of the barrier in which the new participants will first participate.


The current instance has already been disposed.


Adding a participant would cause the barrier's participant count to exceed 32,767.


The method was invoked from within a post-phase action.

If the barrier is currently executing a post phase action, this call is blocked until the post phase action completes and the barrier has moved on to the next phase.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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