AddonDataHandler.BeginGetData method

An implementation of this method initiates an asynchronous request to the data source.

Namespace:  Microsoft.Office.Visio.Server
Assembly:  Microsoft.Office.Visio.Server (in Microsoft.Office.Visio.Server.dll)

Public MustOverride Function BeginGetData ( _
	context As HttpContext, _
	callback As AsyncCallback, _
	asyncState As Object _
) As IAsyncResult
Dim instance As AddonDataHandler
Dim context As HttpContext
Dim callback As AsyncCallback
Dim asyncState As Object
Dim returnValue As IAsyncResult

returnValue = instance.BeginGetData(context, _
	callback, asyncState)


Type: System.Web.HttpContext

An HttpContext object that provides references to intrinsic server objects that are used to service HTTP requests.

Type: System.AsyncCallback

The AsyncCallback delegate to call when the asynchronous operation is complete.

Type: System.Object

Any extra data needed to process the request.

Return value

Type: System.IAsyncResult
An IAsyncResult object that contains information about the status of the operation.