Stretch = None
<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 Margin="5" Grid.Column="0" Grid.Row="0"> <TextBlock Margin="5" Text="Stretch = None" /> <Button Width="135" Height="100"> <Button.Background> <ImageBrush ImageSource="c:\image.jpg" Stretch="None" /> </Button.Background> </Button> </StackPanel> </UserControl>