internal static void SetEventBinding(this Window window, string eventName, string commandName)
{
Microsoft.Xaml.Behaviors.EventTrigger trigger = new Microsoft.Xaml.Behaviors.EventTrigger(eventName);
EventToCommand action = new EventToCommand();
BindingOperations.SetBinding(action, EventToCommand.CommandProperty, new Binding(commandName));
trigger.Actions.Add(action);
Interaction.GetTriggers(window).Add(trigger);
}
private static void OnCommandChanged(
EventToCommand element,
DependencyPropertyChangedEventArgs e)
{
if (element == null)
{
return;
}
if (e.OldValue != null)
{
((ICommand)e.OldValue).CanExecuteChanged -= element.OnCommandCanExecuteChanged;
}
var command = (ICommand)e.NewValue;
if (command != null)
{
command.CanExecuteChanged += element.OnCommandCanExecuteChanged;
}
element.EnableDisableElement();
}
