Get click event handlers of a RadTileElement

[Raniere Muniz]

Hello,

How can I get the list of all the event handlers (delegates) associated with the Click event on a RadTileElement in Panorama control using reflection?

I should implement a proxy class that add or remove handlers on Click event.

Something like this:

private event EventHandler _eventProxy;
...
var _handlers = GetEventHandlers(radTileElement, "Click");
foreach (var handler in _handlers)
{
  _eventProxy += (EventHandler)handler;
}

I could do it with normal Controls but not with RadTileElement in Panorama.

Thank you in advance,

Raniere

[Ivan Petrov]

Hello Raniere,

Thank you for writing.

To get the handlers added to the Click event of an element you can use the following method:

private Delegate[] GetEventHandlers(object instance)
{
    FieldInfo eventsField = typeof(DisposableObject).GetField("events", BindingFlags.GetField | BindingFlags.NonPublic | BindingFlags.Instance);
    EventHandlerList list = eventsField.GetValue(instance) as EventHandlerList;
    FieldInfo keyField = typeof(RadItem).GetField("MouseClickEventKey", BindingFlags.Static | BindingFlags.NonPublic);
    object eventKey = keyField.GetValue(instance);
    EventHandler eventDelegate = (EventHandler)list[eventKey];

    if (eventDelegate == null)
    {
        return null;
    }

    return eventDelegate.GetInvocationList();
}

I hope this is useful. Should you have further questions, I would be glad to help.

Kind regards,
Ivan Petrov
the Telerik team

[Raniere Muniz]

Great!

It works perfectly!

Thaks!

Raniere

[BesT LoLo]

Hi All;
Can i add an event (e.g: onmousedown) to a RadBinaryImage inside UpdatePanel inside radgrid ?, and use this event on code behind?

Best Regards

BesT LoLo

[Ivan Petrov]

Hello,

This is the WinForms suite forum. Any questions related to other suites should be opened in the corresponding forum section. It seems your questions is about our ASP.NET AJAX suite. If this is the case please post your questions in the following forum section - ASP.NET AJAX.

I hope this will be useful. Feel free to write back with further questions.

Regards,
Ivan Petrov
Telerik