<Window x:Class="WpfApplication1.LinearGradientBrushExample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="LinearGradientBrush" Height="375" Width="300"> <StackPanel> <TextBlock Margin="5" Text="Vertical linear gradient:" /> <Rectangle Width="100" Height="75" Stroke="Blue"> <Rectangle.Fill> <LinearGradientBrush StartPoint="0,0" EndPoint="1,0"> <GradientStop Color="Blue" Offset="0" /> <GradientStop Color="Yellow" Offset="1" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> </StackPanel> </Window>