protected void AddEventHandler(IEventHandler handler)
{
if (eventHandlers.IsNull())
{
eventHandlers = new EventHandlerList();
}
eventHandlers.Add(handler);
}
private static void AttachChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
if (DesignModeUtility.DesignModeIsEnabled)
{
return;
}
string attachString = dependencyPropertyChangedEventArgs.NewValue as string;
if (!string.IsNullOrWhiteSpace(attachString))
{
EventHandlerList handlerHelpers = new EventHandlerList();
string[] attachStrings = attachString.Split(';');
foreach (string s in attachStrings)
{
var trimString = s.Trim();
if (!string.IsNullOrEmpty(trimString))
{
var newHandler = new EventHandlerInstance { Attach = trimString };
handlerHelpers.Add(newHandler);
}
}
SetList(dependencyObject, handlerHelpers);
}
}