StackPanel myStackPanel = new StackPanel();
myStackPanel.Margin = new Thickness(20, 0, 0, 0);
TextBlock myTextBlock = new TextBlock();
myTextBlock.Margin = new Thickness(0, 10, 0, 0);
myTextBlock.Text = "AutoLayoutContent: True";
myStackPanel.Children.Add(myTextBlock);

Rectangle myRectangle = new Rectangle();
myRectangle.Width = 100;
myRectangle.Height = 100;
myRectangle.Stroke = Brushes.Black;
myRectangle.StrokeThickness = 1;

// Create the Fill for the rectangle using a VisualBrush.
VisualBrush myVisualBrush = new VisualBrush();
myVisualBrush.AutoLayoutContent = true;

// This button is used as the visual for the VisualBrush.
Button myButton = new Button();
myButton.Content = "Hello, World";

myVisualBrush.Visual = myButton;

// Set the fill of the Rectangle to the Visual Brush.
myRectangle.Fill = myVisualBrush;

myStackPanel.Children.Add(myRectangle);

TextBlock myTextBlock2 = new TextBlock();
myTextBlock2.Margin = new Thickness(0, 10, 0, 0);
myTextBlock2.Text = "AutoLayoutContent: False";
myStackPanel.Children.Add(myTextBlock2);

Rectangle myRectangle2 = new Rectangle();
myRectangle2.Width = 100;
myRectangle2.Height = 100;
myRectangle2.Stroke = Brushes.Black;
myRectangle2.StrokeThickness = 1;

// Create the Fill for the rectangle using a VisualBrush.
VisualBrush myVisualBrush2 = new VisualBrush();
myVisualBrush2.AutoLayoutContent = false;

// This button is used as the visual for the VisualBrush.
Button myButton2 = new Button();
myButton2.Content = "Hello, World";
myButton2.Width = 100;
myButton2.Height = 100;

myVisualBrush2.Visual = myButton2;

// Set the fill of the Rectangle to the Visual Brush.
myRectangle2.Fill = myVisualBrush2;

myStackPanel.Children.Add(myRectangle2);

// Create a name scope for the page.
NameScope.SetNameScope(this, new NameScope());

StackPanel myStackPanel = new StackPanel();
myStackPanel.Margin = new Thickness(20, 0, 0, 0);
TextBlock myTextBlock = new TextBlock();
myTextBlock.Margin = new Thickness(0, 10, 0, 0);
myTextBlock.Text = "The UIElement";
myStackPanel.Children.Add(myTextBlock);

Button myButton = new Button();
myButton.Content = "Hello, World";
myButton.Width = 70;
this.RegisterName("MyButton", myButton);
myStackPanel.Children.Add(myButton);

TextBlock myTextBlock2 = new TextBlock();
myTextBlock2.Margin = new Thickness(0, 10, 0, 0);
myTextBlock2.Text = "AutoLayoutContent: True";
myStackPanel.Children.Add(myTextBlock2);

Rectangle myRectangle = new Rectangle();
myRectangle.Width = 100;
myRectangle.Height = 100;
myRectangle.Stroke = Brushes.Black;
myRectangle.StrokeThickness = 1;

// Create the Fill for the rectangle using a VisualBrush.
VisualBrush myVisualBrush = new VisualBrush();
myVisualBrush.AutoLayoutContent = true;
Binding buttonBinding = new Binding();
buttonBinding.ElementName = "MyButton";
BindingOperations.SetBinding(myVisualBrush, VisualBrush.VisualProperty, buttonBinding);

// Set the fill of the Rectangle to the Visual Brush.
myRectangle.Fill = myVisualBrush;

// Add the first rectangle.
myStackPanel.Children.Add(myRectangle);

TextBlock myTextBlock3 = new TextBlock();
myTextBlock3.Margin = new Thickness(0, 10, 0, 0);
myTextBlock3.Text = "AutoLayoutContent: False";
myStackPanel.Children.Add(myTextBlock3);

Rectangle myRectangle2 = new Rectangle();
myRectangle2.Width = 100;
myRectangle2.Height = 100;
myRectangle2.Stroke = Brushes.Black;
myRectangle2.StrokeThickness = 1;

// Create the Fill for the rectangle using a VisualBrush.
VisualBrush myVisualBrush2 = new VisualBrush();
myVisualBrush2.AutoLayoutContent = false;
Binding buttonBinding2 = new Binding();
buttonBinding2.ElementName = "MyButton";
BindingOperations.SetBinding(myVisualBrush2, VisualBrush.VisualProperty, buttonBinding2);

// Set the fill of the Rectangle to the Visual Brush.
myRectangle2.Fill = myVisualBrush2;

myStackPanel.Children.Add(myRectangle2);