Does anyone know if there is any event which is thrown after ADDED_TO_STAGE event for each component?
I am executing some security actions over the components before they are shown (ADDED_TO_STAGE event), but now I need to execute some other actions after this event, but before the components are show.
So, Is it possible? Is there any event thrown in that phase.
thank you very much in advance.
I would give
Event.FRAME_CONSTRUCTED
a chance. But you have to remove the event listener after the first dispatch.
Related
subj, i need to listen for TooltipEvent of my far child. Is that possible without manual re-dispatching ?
You can try listening at the capture phrase. When adding the event listener in ActionScript there is an option to do so. If you do this your event listener will fire before the handlers that fire during the target phase.
Read a bit more about the event flow.
I have two separate advancedDataGrid instances (let's call them A and B). What I'd like to do: when clicking on grid A I'd like
for grid A to handle the click normally (i.e. default advancedDataGrid behavior)
for grid B to receive a click event a certain location and handle such event using advancedDataGrid default behavior (i.e. without having to write a handler for such click).
Is this possible?
I've managed to dispatchEvent a MouseEvent.CLICK to grid B and to handle such event by creating an event listener, but really I'd like for grid B to handle the event on its own (i.e. without having to re-rewrite a handler), and that doesn't seem to be the case. Is MouseEvent.CLICK even the right event?
any help, pointers, advice would be immensely appreciated.
thank you!
There is no way to execute code after an event is dispatched without using an event listener.
I'm unclear exactly what you're trying to do, but there is no reason why you can't dispatch an event on an object that is not it's own. Instead of doing:
myContainerWithAAndB.dispatchEvent(MouseEvent.CLICK);
You can do this:
gridB.dispatchEvent(MouseEvent.CLICK);
And if there is a default handler in the gridB class to handle such an event, that handler should fire; just as if gridB's own code had dispatched the event.
I'm looking for a good tutorial/article that explains the exact sequence of events that takes place when a page is created. I can never remember the order. I think it's something like the parent controls Init event is called, then the child controls Init event is called, in order of the placement on the page. Also, when the control events are called, what order are they called in? For example, if a button event is raised, does this event get called before a DataList_ItemDataBound event is called if the DataList.DataBind is in the Page_Load event? So, does anyone want to try to explain or direct me to a nice article that explains all this?
thanks.
This link should cover it:
MSDN Page Life Cycle
Maybe you're looking for this:
by Leon Andrianarivony.
This is a good article I refer to for these types of questions.
http://www.aspfree.com/c/a/ASP.NET/ASP.NET-Life-Cycle-and-Best-Practices/
And to answer your question specifically - Button events run after everything in Page Load is completed so if you're calling a DataBind in Page_Load, the button click event comes after that.
When an asp.net button is fired, will the button's event get fired before the page_load and init and pre_init events?
http://msdn.microsoft.com/en-us/library/ms178472.aspx
Page_Load goes before event handlers.
Just stick some breakpoints in the different functions and see which one fires first. I think the answer is no.
Make a page with page init, load (also variations of ispostback), prerender, unload and control events and do a trace to see when they all fire off - easier to remember too when you do it as opposed to reading it.
Page_Load, init and pre_init will happen before the button can receive any user input, so it will definitely happen before the button can fire off any events as a result of user input.
Where in the page life cycle is it most appropriate to set event handler delegates for events raised by custom User Controls?
I have a ReportFilter user control that raises an ApplyFilterClicked event. Currently I am just using Page_Load to assign a handler method.
reportFilter.ApplyFilterClicked += reportFilter_ApplyFilterClicked;
If you are creating your user controls dynamically, then the most appropriate place is in the Init phase, right where the controls are created (or should be).
Otherwise, the Load phase will work just fine, and is probably where most people set them. Obviously, you can't set the handlers anywhere later than that, otherwise they would never be called, since the event handling phase is next in line after Load.
Usually the init phase is best for creating controls because this will help with viewstate updates to the controls. Check out this page for some good info on page lifecycle:
http://msdn.microsoft.com/en-us/library/ms178472.aspx
Hope this helps