Barrier.AddParticipants Method (Int32)

.NET Framework (current version)

Notifies the Barrier that there will be additional participants.

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

public long AddParticipants(
	int participantCount


Type: System.Int32

The number of additional participants to add to the barrier.

Return Value

Type: System.Int64

The phase number of the barrier in which the new participants will first participate.

Exception Condition

The current instance has already been disposed.


participantCount is less than 0.


Adding participantCount participants 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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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