EventHandlerTaskAsyncHelper Class

.NET Framework (current version)

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Converts task-returning asynchronous methods into methods that use the asynchronous programming model used in previous versions of ASP.NET and that is based on begin and end events.

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


Public NotInheritable Class EventHandlerTaskAsyncHelper


Initializes a new instance of the EventHandlerTaskAsyncHelper class.


Represents the BeginEventHandler method for an asynchronous task.


Represents the EndEventHandler method for an asynchronous task.


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the Type of the current instance.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)

To handle asynchronous tasks in ASP.NET 4.5, you implement the logic to return a task as a TaskEventHandler delegate. This model of asynchronous task-based programming supersedes the model used in previous versions of ASP.NET, which bases all event handling on begin and end events. After you implement a TaskEventHandler delegate, you can then pass it to the EventHandlerTaskAsyncHelper constructor, which wraps the task-returning logic and converts the handler to the model that uses begin and end events. The EventHandlerTaskAsyncHelper class enables your TaskEventHandler object to be compatible with the ASP.NET page framework. When you call the AddOnPreRenderCompleteAsync method to process the task for an asynchronous page, you can use the BeginEventHandler and EndEventHandler properties to pass the converted begin and event handlers to the method.

.NET Framework
Available since 4.5

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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