public ShellNavigatingEventArgs(ShellNavigationState current, ShellNavigationState target, ShellNavigationSource source, bool canCancel)
{
Current = current;
Target = target;
Source = source;
CanCancel = canCancel;
}
public ShellNavigatedEventArgs(ShellNavigationState previous, ShellNavigationState current, ShellNavigationSource source)
{
Previous = previous;
Current = current;
Source = source;
}