private void OnSpaceControlPageSaving(object sender, PageSavingEventArgs e)
{
KryptonDockingManager dockingManager = DockingManager;
if (dockingManager != null)
{
DockPageSavingEventArgs args = new DockPageSavingEventArgs(dockingManager, e.XmlWriter, e.Page);
dockingManager.RaisePageSaving(args);
}
}