<Page x:Class="GroupBoxExample.Page1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Loaded="OnLoad" Name="GroupBoxPage"> <DockPanel> <GroupBox Width="300" Height="410"> <GroupBox.Header> <Label>Title of the GroupBox</Label> </GroupBox.Header> <StackPanel> <TabControl Name="myTabControl" TabStripPlacement="Top" Margin="0, 0, 0, 10" Height="350"> <TabItem Name="PersonalInfo"> <TabItem.Header>_Personal</TabItem.Header> <StackPanel> <TextBlock>Employee</TextBlock> <TextBlock>Select your name</TextBlock> <ListBox Name="empName" SelectionChanged="updateSummary"> <ListBoxItem IsSelected="true">A</ListBoxItem> <ListBoxItem>B</ListBoxItem> <ListBoxItem>C</ListBoxItem> <ListBoxItem>D</ListBoxItem> </ListBox> </StackPanel> </TabItem> <TabItem> <TabItem.Header>_Job</TabItem.Header> <StackPanel> <TextBlock>Select a job</TextBlock> <ListBox Name ="job" SelectionChanged="updateSummary"> <ListBoxItem IsSelected="true">A</ListBoxItem> <ListBoxItem>B</ListBoxItem> <ListBoxItem>C</ListBoxItem> <ListBoxItem>D</ListBoxItem> </ListBox> </StackPanel> </TabItem> <TabItem Name="Summary" > <TabItem.Header>Su_mmary</TabItem.Header> <StackPanel> <TextBlock Name="emp"/> <TextBlock Name="ejob"/> <TextBlock Name="eskill"/> </StackPanel> </TabItem> </TabControl> <Button Content="Show Summary" Click="goToSummaryTab"/> </StackPanel> </GroupBox> </DockPanel> </Page> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Media; using System.Windows.Navigation; using System.Windows.Shapes; namespace GroupBoxExample { public partial class Page1 : Page { private void displayData() { ListBoxItem lbi = empName.SelectedItem as ListBoxItem; emp.Text = "Name: " + lbi.Content.ToString(); lbi = job.SelectedItem as ListBoxItem; ejob.Text = "Job: " + lbi.Content.ToString(); eskill.Text = "Skill: " + lbi.Content.ToString(); } private void OnLoad(object sender, RoutedEventArgs e) { displayData(); } private void updateSummary(object sender, RoutedEventArgs e) { if (GroupBoxPage.IsLoaded) displayData(); } private void goToSummaryTab(object sender, RoutedEventArgs e) { displayData(); Summary.IsSelected = true; } } }