or
<Window x:Class="RadControlsWpfApp1.MainWindow" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" xmlns:local="clr-namespace:RadControlsWpfApp1" xmlns:diagnostics="clr-namespace:System.Diagnostics;assembly=WindowsBase" Title="MainWindow" Height="350" Width="525"> <Window.Resources> <DataTemplate x:Key="TabItemTemplate"> <StackPanel Orientation="Horizontal" VerticalAlignment="Center"> <Image Width="18" Height="18" Source="{Binding Icon}" Stretch="Fill" Margin="0,0,3,0" /> <TextBlock Text="{Binding Header, diagnostics:PresentationTraceSources.TraceLevel=High}"/> </StackPanel> </DataTemplate> </Window.Resources> <Grid> <telerik:RadTabControl ItemsSource="{Binding Tabs}" ItemTemplate="{StaticResource TabItemTemplate}" /> </Grid> </Window> using System.Windows; namespace RadControlsWpfApp1 { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { DataContext = new MainWindowViewModel(); InitializeComponent(); } } } using System; using System.Collections.ObjectModel; using System.Windows.Media; using System.Windows.Media.Imaging; using Telerik.Windows.Controls.QuickStart; namespace RadControlsWpfApp1 { public class MainWindowViewModel { private BitmapImage Bullet = new BitmapImage(new Uri("/RadControlsWpfApp1;component/bullet_red.png", UriKind.Relative)); public ObservableCollection<IItem> Tabs { get; set; } public MainWindowViewModel() { Tabs = new ObservableCollection<IItem>(); Tabs.Add(new ItemControl { Header = "Item 1", Icon = Bullet }); Tabs.Add(new Item { Header = "Item 2", Icon = Bullet }); } } public interface IItem { object Header { get; set; } ImageSource Icon { get; set; } } public class Item : IItem { public object Header { get; set; } public ImageSource Icon { get; set; } } public class ItemControl : HeaderedContentControl, IItem { public ImageSource Icon { get; set; } } } <Grid.RowDefinitions> <RowDefinition Height="60"/> <RowDefinition Height="500"/></Grid.RowDefinitions><Grid.RowDefinitions> <RowDefinition Height="60"/> <RowDefinition Height="Auto"/></Grid.RowDefinitions>