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DispatcherExtensions.BeginInvoke Method (Dispatcher, Action)

Executes the specified delegate asynchronously with normal priority on the thread that the specified Dispatcher was created on.

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

[BrowsableAttribute(false)]
public static DispatcherOperation BeginInvoke(
	this Dispatcher dispatcher,
	Action action
)

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.

Return Value

Type: System.Windows.Threading.DispatcherOperation
An IAsyncResult object that represents the result of the BeginInvoke operation.

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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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