private void DemoTabAsRegion(object obj)
        {
            var tabItem = new RibbonTabAsRegion();

            ribbonRegion.Add(tabItem);
            ribbonRegion.Activate(tabItem);
        }
		private void DemoTabAsRegion(object obj)
		{
			var tabItem = new RibbonTabAsRegion();
			ribbonRegion.Add(tabItem);
			ribbonRegion.Activate(tabItem);
		}