/// <summary>
/// Remove a handler for the given source's event.
/// </summary>
public static void RemoveHandler(DelegateCommandBase source, EventHandler handler)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
CurrentManager.ProtectedRemoveHandler(source, handler);
}
/// <summary>
/// Stop listening to the given source for the event.
/// </summary>
protected override void StopListening(object source)
{
DelegateCommandBase typedSource = (DelegateCommandBase)source;
typedSource.CanExecuteChangedInternal -= this.OnCanExecuteChangedInternal;
}
