Loading the content of folder in a Tree

[juan.medin]

Hi,

I've a tree that loads on demand its data. When a user selects one folder, it can open a window and operate with it. This window needs to know the folder's children.

If you invoke a Tree.openFolder() it's asynchronous, so in code like this:

tree.openFolder()
window.show()

You will end up with the window being show before the tree folder is loaded.

On the other hand, if you add a:

tree.addDataChangedHandler()

to get notified when the data changes, it's not a clean way to do this.

Anyway, opening the folder is a side effect: before showing the window the only thing I need to do is to load the folder children in the model, not to open that folder.

Do you know any clean solution for this?

Thanks in advance,
Juan

[Isomorphic]

Listening for DataChanged is the right approach. We'll consider adding a callback param to openFolder as a convenience to avoid a one-time registration for dataChanged().

[juan.medin]

Thank you.

Do you know if is there a way to load the children without visually showing them ?