public static void UnregisterCommandsRecursive(FrameworkElement obj)
{
var pnl = obj as Panel;
if (pnl != null)
{
foreach (var item in pnl.Children)
{
UnregisterCommandsRecursive(item as FrameworkElement);
}
}
CommandSubscription.UnregisterAllSubscriptions(obj);
}
/// <summary>
/// occurs when the command change on a <see cref="DependencyObject"/>
/// </summary>
/// <param name="d">The dependency object.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void CommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (d is FrameworkElement)
{
var elem = (FrameworkElement)d;
var oldCommands = e.OldValue as string;
if (!string.IsNullOrEmpty(oldCommands))
{
foreach (var item in oldCommands.Split(' '))
{
CommandSubscription.UnregisterSubscription(item, elem);
}
}
var newCommands = e.NewValue as string;
if (!string.IsNullOrEmpty(newCommands))
{
foreach (var item in newCommands.Split(' '))
{
CommandSubscription.RegisterCommand(item, elem);
}
}
}
}
public static void UnregisterCommands(FrameworkElement obj)
{
CommandSubscription.UnregisterAllSubscriptions(obj);
}