Is there a YUI Custom Event available for pre-selecting the value in a Dropdown

Imagine a scenario where I have a dropdown field that automatically selects a value as soon as it is rendered (for example, a Country field in a signup form). This dropdown interacts with other components, causing the selected value to change dynamically. What I am looking to achieve is a way to trigger a method every time a new value is selected in the dropdown. Is this possible?

To clarify my question further, I would like to establish an onDefaultValueSet event and have the first dropdown subscribe to it. This means that whenever a value is chosen in the dropdown, my designated function would be called.

I attempted to use YUI Custom Events for this purpose, but I am unsure about how the browser will handle calling my handler each time a selection is made in the dropdown.

Using onSelect from Default DOM doesn't seem to be the right solution based on my previous attempts.

If anyone has any insights or solutions to offer regarding this issue, I would greatly appreciate the assistance.

javascriptdrop-down-menudom-eventsyuicustom-events

Answer №1

While I can't guarantee that this is the correct solution, I have come up with a workaround. It would be helpful if you could confirm this.

My situation involved using JavaScript DOM manipulation to mark an item as "selected." This was achieved by writing:

domElement.options[5].selected = True;

To trigger a custom event (YUI), I decided to call "fire()" immediately after this code snippet. The updated code now looks like this:

domElement.options[5].selected = True;
onDefaultValueSetEvent.fire(domElement.name);

However, there is still some uncertainty on my side. What happens if the option is selected through a graphical user interface? In other words, how does the fire() method get triggered automatically?

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