public MainWindow() { InitializeComponent(); for (int x = 0; x < 11; x++) { Tabs.AddNewTab(); Tabs.SelectedTab.TabTitle = "tab" + x.ToString(); Tabs.SelectedTab.TabContent = new Button() { Content = "tab" + x.ToString() }; } //Tabs.AddNewTab(); //Tabs.AddNewTab(); //Tabs.Tabs[0].TabContent = new Button() //{ // Content = "Tab1" //}; //Tabs.Tabs[0].TabTitle = ""; //Tabs.Tabs[1].TabContent = new Button() //{ // Content = "Tab2" //}; }