public void AddCommandBinding(UserControl control, ICommand command)
{
CommandBindingCollection bindings = CommandManager.GetCommandBindings(control);
if (bindings == null)
{
bindings = new CommandBindingCollection();
CommandManager.SetCommandBindings(control, bindings);
}
if (bindings.Where(p => p.Command == command).FirstOrDefault() == null)
{
bindings.Add(new CommandBinding(command, CommandExecuted, CommandCanExecute));
}
}
private void CommandExecuted(object sender, ExecutedRoutedEventArgs args)
{
args.Command.Execute(args.Parameter);
//reevaluate CanExecute in order to enable/disable commands
CommandManager.InvalidateRequerySuggested();
}