You can build it all yourself it you want. You can buy it if you want. Yes, you can get the same functionality in Winforms, but if you build it yourself, it won't be as easy as building it in Winforms.

>The feature shown in the demo are coming from WPF or Xceed? Is the same grid doable with WinForms by a 3rd-party? Does VS give me all the tools to build this kind of grid with the basic WPF controls or I must buy 3rd-party controls like Xceed?