Task.Start Method (TaskScheduler)


Starts the Task, scheduling it for execution to the specified TaskScheduler.

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

public void Start(
	TaskScheduler scheduler


Type: System.Threading.Tasks.TaskScheduler

The TaskScheduler with which to associate and execute this task.

Exception Condition

The scheduler argument is null.


The Task is not in a valid state to be started. It may have already been started, executed, or canceled, or it may have been created in a manner that doesn't support direct scheduling.


The Task instance has been disposed.


The scheduler was unable to queue this task.

A task may only be started and run only once. Any attempts to schedule a task a second time will result in an exception.

For information on handling exceptions thrown by task operations, see Exception Handling (Task Parallel Library).

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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