public class GroupBox : ContentControl

Public Class GroupBox
	Inherits ContentControl

public ref class GroupBox : public ContentControl

type GroupBox =  
    class
        inherit ContentControl
    end

// Group 123
var radioButton1 = new RadioButton
{
  Margin = new Vector4F(4, 8, 4, 4),
  Content = new TextBlock { Text = "Option 1" },
  IsChecked = true,
  GroupName = "Group 123"
};

var radioButton2 = new RadioButton
{
  Margin = new Vector4F(4, 2, 4, 2),
  Content = new TextBlock { Text = "Option 2" },
  GroupName = "Group 123"
};

var radioButton3 = new RadioButton
{
  Margin = new Vector4F(4, 2, 4, 4),
  Content = new TextBlock { Text = "Option 3" },
  GroupName = "Group 123"
};

var stackPanel = new StackPanel();
stackPanel.Children.Add(radioButton1);
stackPanel.Children.Add(radioButton2);
stackPanel.Children.Add(radioButton3);

var groupBox123 = new GroupBox
{
  Title = "Options 1, 2, 3",
  HorizontalAlignment = HorizontalAlignment.Stretch,
  Margin = new Vector4F(4),
  Content = stackPanel
};

// Group ABC
var radioButtonA = new RadioButton
{
  Margin = new Vector4F(4, 8, 4, 4),
  Content = new TextBlock { Text = "Option A" },
  IsChecked = true,
  GroupName = "Group ABC"
};

var radioButtonB = new RadioButton
{
  Margin = new Vector4F(4, 2, 4, 2),
  Content = new TextBlock { Text = "Option B" },
  GroupName = "Group ABC"
};

var radioButtonC = new RadioButton
{
  Margin = new Vector4F(4, 2, 4, 4),
  Content = new TextBlock { Text = "Option C" },
  GroupName = "Group ABC"
};

stackPanel = new StackPanel();
stackPanel.Children.Add(radioButtonA);
stackPanel.Children.Add(radioButtonB);
stackPanel.Children.Add(radioButtonC);

var groupBoxABC = new GroupBox
{
  Title = "Options A, B, C",
  HorizontalAlignment = HorizontalAlignment.Stretch,
  Margin = new Vector4F(4),
  Content = stackPanel
};

// To show the groups, add them to an existing panel.
panel.Children.Add(groupBox123);
panel.Children.Add(groupBoxABC);