Fill DockPanel with Labels and Buttons
<Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Fun with Panels!" Height="186" Width="501"> <DockPanel LastChildFill ="True"> <Label DockPanel.Dock ="Top" Name="lblInstruction" FontSize="15">Enter</Label> <Label DockPanel.Dock ="Left" Name="lblMake">Make</Label> <Label DockPanel.Dock ="Right" Name="lblColor">Color</Label> <Label DockPanel.Dock ="Bottom" Name="lblPetName">Name</Label> <Button Name="btnOK">OK</Button> </DockPanel> </Window>