private void DisabledKeys_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
if (KeyStrokeCommand != null)
{
KeyStrokeCommand.CanExecute(DisabledKeys.ToArray());
}
var disabledKeyArray = (from String disabledKey in e.NewItems
select disabledKey).ToArray();
var enabledKeyArray = (from String enabledKey in e.OldItems
select enabledKey).ToArray();
switch (e.Action)
{
case System.Collections.Specialized.NotifyCollectionChangedAction.Add:
OnNewDisabledKeys(disabledKeyArray);
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Reset:
case System.Collections.Specialized.NotifyCollectionChangedAction.Remove:
OnNewEnabledKeys(enabledKeyArray);
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Replace:
OnNewDisabledKeys(disabledKeyArray);
OnNewEnabledKeys(enabledKeyArray);
break;
default:
case System.Collections.Specialized.NotifyCollectionChangedAction.Move:
break;
}
}
private void OnExecuteKeyStrokeCommand(object p)
{
if (KeyStrokeCommand == null)
{
return;
}
if (!KeyStrokeCommand.CanExecute(p))
{
return;
}
KeyStrokeCommand.Execute(p);
}