private static void AddRoutedEventHandler(
Hashtable table,
RoutedEvent routedEvent,
RoutedEventHandler handler,
bool handledEventsToo)
{
if (routedEvent == null || handler == null)
{
throw new ArgumentNullException();
}
// Create a new RoutedEventHandler
RoutedEventHandlerInfo routedEventHandlerInfo =
new RoutedEventHandlerInfo(handler, handledEventsToo);
// Get the entry corresponding to the given RoutedEvent
ArrayList handlers = (ArrayList)table[routedEvent];
if (handlers == null)
{
table[routedEvent] = (handlers = new ArrayList());
}
// Add the RoutedEventHandlerInfo to the list
handlers.Add(routedEventHandlerInfo);
}
private bool HasClickEventHandler(object objectWithEvent)
{
object eventStore = objectWithEvent.GetType()
.GetProperty("EventHandlersStore", BindingFlags.Instance | BindingFlags.NonPublic)
.GetValue(objectWithEvent, null);
if (eventStore != null)
{
RoutedEventHandlerInfo clickEvent = ((RoutedEventHandlerInfo[])eventStore
.GetType()
.GetMethod("GetRoutedEventHandlers", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
.Invoke(eventStore, new object[] { Button.ClickEvent }))
.FirstOrDefault();
if (clickEvent == default)
{
return(false);
}
return(clickEvent.Handler?.Method.Name != null);
}
return(false);
}
public bool Equals(RoutedEventHandlerInfo handlerInfo)
{
return(this == handlerInfo);
}
/// <summary> /// Is the given RoutedEventHandlerInfo equals the current /// </summary> public bool Equals(RoutedEventHandlerInfo handlerInfo) => this._handler == handlerInfo._handler && this._handledEventsToo == handlerInfo._handledEventsToo;
/// <summary>
/// Equalses the specified handler information.
/// </summary>
/// <param name="handlerInfo">The handler information.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
public bool Equals(RoutedEventHandlerInfo handlerInfo)
{
return (this.Handler == handlerInfo.Handler) && (this.InvokeHandledEventsToo == handlerInfo.InvokeHandledEventsToo);
}
public bool Equals(RoutedEventHandlerInfo handlerInfo)
{
return this == handlerInfo;
}
// Constructor for RouteItem
internal RouteItem(object target, RoutedEventHandlerInfo routedEventHandlerInfo)
{
this._target = target;
this._routedEventHandlerInfo = routedEventHandlerInfo;
}
