WPF C#

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Workspace" Width="640" Height="480">
        
                      Stroke="Blue" StrokeThickness="2"
            Canvas.Left="100" Canvas.Top="100">