-  <Window x:Class="WpfApplication2.MainWindow"
-          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-          Title="MainWindow" Height="447" Width="631">
-      <Grid>
-          <TabControl Height="272" HorizontalAlignment="Left" Margin="49,58,0,0" Name="tabControl1" VerticalAlignment="Top" Width="312">
-              <TabItem Header="tabItem1" Name="tabItem1">
-                  <Grid>
-                      <DataGrid AutoGenerateColumns="False" Height="228" HorizontalAlignment="Left" Margin="6,6,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="290" />
-                  </Grid>
-              </TabItem>
-          </TabControl>
-      </Grid>
-  </Window>
Ovenstående giver et vindue, med en TabControl med én tab, og som har et grid.
Prøver du at tilføje dit grid fra codebehind, skal du gøre:
-  <Window x:Class="WpfApplication2.MainWindow"
-          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-          Title="MainWindow" Height="447" Width="631">
-      <Grid>
-          <TabControl Height="272" HorizontalAlignment="Left" Margin="49,58,0,0" Name="tabControl1" VerticalAlignment="Top" Width="312">
-              <TabItem Header="tabItem1" Name="tabItem1">
-                  <Grid Name="tab1">
-                     
-                  </Grid>
-              </TabItem>
-          </TabControl>
-      </Grid>
-  </Window>
-  //Antaget du har oprettet et Grid med navnet grid
-  this.tab1.Children.Add(grid);