'Declaration
 
Protected MustOverride Function BeginCount( _
   ByVal callback As AsyncCallback, _
   ByVal state As Object _
) As IAsyncResult

'Usage
 
Dim instance As SimpleAsyncIndexDataSourceProvider
Dim callback As AsyncCallback
Dim state As Object
Dim value As IAsyncResult
 
value = instance.BeginCount(callback, state)

protected abstract IAsyncResult BeginCount( 
   AsyncCallback callback,
   object state
)

Parameters

callback

state

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

SimpleAsyncIndexDataSourceProvider Class
SimpleAsyncIndexDataSourceProvider Members