WPF C# Tutorial

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="Microsoft.Samples.Graphics.Transforms.SampleViewer"
    Title="Transformations"
    xmlns:my="clr-namespace:Microsoft.Samples.Graphics.Transforms"
    xmlns:examples="Microsoft.Samples.Graphics.Transforms">