<StackPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Polyline Margin="0.5in, 1.5in, 0, 0" Points="0 0, 500 25, 0 50" VerticalAlignment="Center" Stroke="Blue" StrokeThickness="{Binding ElementName=sliderThickness,Path=Value }" /> <Label Content="_Thickness" /> <Slider Name="sliderThickness" Minimum="0" Maximum="100" Value="24" /> </StackPanel>