This article demonstrates how to create and use the GroupBox control in WPF using XAML.
GroupBox control
The GroupBox control display a frame around
them and also allows to display captions to them which is not possible with the
Panel control. GroupBox control is used to creates a container that has a border
and a header for user interface content.
Creating GroupBox control
<GroupBox
Header="GroupBox1"
Height="175"
HorizontalAlignment="Left"
Margin="10,10,0,0"
Name="GroupBox1"
VerticalAlignment="Top"
Width="370"/>
The
Width and height properties of the GroupBox control are used to set the width
and height of the control and Name property is the property which has the unique name of a GroupBox control.

Figure1.gif
Important Property
Header - Header property is represents the header text of a
GroupBox control.
Foreground and Background property
For example
Creating a Tab control inside the
Group control in XAML.
<Window
x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow"
Height="350"
Width="525">
<Grid>
<GroupBox
Header="GroupBox1"
Height="244"
HorizontalAlignment="Left"
Margin="10,10,0,0"
Name="GroupBox1"
VerticalAlignment="Top"
Width="370"/>
<TabControl
Height="204"
HorizontalAlignment="Left"
Margin="44,39,0,0"
Name="TabControl1"
VerticalAlignment="Top"
Width="299">
<TabItem
Header="Picture"
Name="TabItem1">
<Grid>
<Image
Height="150"
HorizontalAlignment="Left"
Margin="10,10,0,0"
Name="Image1"
Stretch="Fill"
VerticalAlignment="Top"
Width="200"
Source="/WpfApplication75;component/Images/image1.jpg.gif"
/>
</Grid>
</TabItem>
<TabItem
Header="XAML
code"
Name="TabItem2"></TabItem>
</TabControl>
</Grid>
</Window>
Now run the application.

Figure2.gif