internal void RegisterUpdatePanel(UpdatePanel updatePanel)
{
Debug.Assert(updatePanel != null);
if (_allUpdatePanels == null)
{
_allUpdatePanels = new List <UpdatePanel>();
}
Debug.Assert(!_allUpdatePanels.Contains(updatePanel),
String.Format(CultureInfo.InvariantCulture, "The UpdatePanel with ID '{0}' has already been registered with the ScriptManager.", updatePanel.ID));
_allUpdatePanels.Add(updatePanel);
if (_panelsInitialized)
{
// Do catch-up for panels that may have been added later in
// the lifecycle during an async post.
Debug.Assert(_owner.IsInAsyncPostBack, "Catch-up initialization should only be done in async posts.");
updatePanel.Initialize();
}
}
