DispatcherExtensions.Invoke Method (Dispatcher, Action, TimeSpan)

Updated: July 2008

Executes the specified delegate synchronously on the thread that the specified Dispatcher was created on, and stops execution after the specified time-out period.

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

public static void Invoke(
	this Dispatcher dispatcher,
	Action action,
	TimeSpan timeout
)

Parameters

dispatcher
Type: System.Windows.Threading.Dispatcher

The dispatcher that executes the delegate.

action
Type: System.Action

The delegate to execute, which takes no arguments and does not return a value.

timeout
Type: System.TimeSpan

The maximum time to wait for the operation to finish.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Dispatcher. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

ExceptionCondition
ArgumentNullException

action is null.

ArgumentException

priority is equal to Inactive.

InvalidEnumArgumentException

priority is not a valid DispatcherPriority.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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 SP1

Date

History

Reason

July 2008

Added topic for new class.

SP1 feature change.

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