'Declaration Protected MustOverride Function BeginCount( _ ByVal filter As SqlFilterExpressionResult, _ ByVal callback As AsyncCallback, _ ByVal state As Object _ ) As IAsyncResult
'Usage Dim instance As AsyncSqlDataSourceProvider Dim filter As SqlFilterExpressionResult Dim callback As AsyncCallback Dim state As Object Dim value As IAsyncResult value = instance.BeginCount(filter, callback, state)
protected abstract IAsyncResult BeginCount( SqlFilterExpressionResult filter, AsyncCallback callback, object state )
Parameters
- filter
- callback
- The AsyncCallback delegate to be called when the operation is complete.
- state
- An object containing state information for the operation.