private void OnSpaceControlPageLoading(object sender, PageLoadingEventArgs e)
{
KryptonDockingManager dockingManager = DockingManager;
if (dockingManager != null)
{
DockPageLoadingEventArgs args = new DockPageLoadingEventArgs(dockingManager, e.XmlReader, e.Page);
dockingManager.RaisePageLoading(args);
}
}