JTree, Model, TreeNodes etc... HELP

[Andy_Hollywood]

Hello

I have been using the DeafultMutableTreeNode and build an Array LIst with my various bits of information, this displays fine, but when i add an element to my Array LIst i can't seem to get the tree to update properly. Some one suggested i shold write my own MVC aprach for it.

I was wondering if someone could possibly explain which parts i would need to implement to achieve the desired tree.

The tree heirarchy, as i said earlier is an ArrayList of Array List, i think thats straight forward enough, now when i add a new element to one of these arraylists anywhere indise of my heirarchy array list i want to the tree to update automatically...

does that make sense?!

I guess the question is, what do i have to implement to get this to work for me, the Tree Model, the TreeNode or something else?!

Cheers in advance

Andy

[Dillinger4]

I guess you would need to call public void validate() on the container to ask it to layout its sub-components again.

[Andy_Hollywood]

ah thank you


i have sorted my problem now, and foudn the problem was with a JScrollPane rather than the way i was repopulatig my tree.

Does anyone know why adding a JTree straight to a JScrollPane caused refresh problem, but adding the JTree to a JPanel and then to the JScrollPane solved it..
bizarre



Cheers again

Andy

[Virtual24]

I dunno about that, but i think there is an update() method in the TreeModel class... dunno if it actually works tho... :-D