Put controls into StackPanel
<UserControl x:Class='SilverlightApplication3.MainPage' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:d='http://schemas.microsoft.com/expression/blend/2008' xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' mc:Ignorable='d' d:DesignWidth='640' d:DesignHeight='480'> <StackPanel x:Name="LayoutRoot" Background="White" Orientation="Horizontal"> <TextBlock Text="Item 1" /> <Button Content="Item 2" /> <Ellipse Fill="Blue" Height="20" Width="30" /> <TextBox Text="Item 4" /> </StackPanel> </UserControl>