private void OnHelpAbout(object sender, RoutedEventArgs e)
{
var d = new GuiComp.DialogAbout();
d.SourceCodeUri = new Uri("https://github.com/ufasoft/coin");
d.Image.Source = new BitmapImage(new Uri(string.Format("/{0};component/coin.ico", System.Reflection.Assembly.GetExecutingAssembly().GetName().Name), UriKind.Relative));
Dialog.ShowDialog(d, this);
}