How programmatically dock new element to DockPanel

Question

How programmatically create an element based on UserControl and dock it to the DockPanel?

Answer 1

Button TopRect = new Button();

TopRect.Background = new SolidColorBrush(Colors.LightGreen);

TopRect.Height = 50;

TopRect.Content = "Top";

// Dock button to top

DockPanel.SetDock(TopRect, Dock.Top);

// Add docked button to DockPanel

dcPanel.Children.Add(TopRect);

Example

Answer 2

var myControl = new MyUserControl();
DockPanel.SetDock(myControl, Dock.Left);
myDockPanel.Children.Add(myControl);

Also see here and here.