ListGrid grouped: how to add and remove a TreeNode

[Jkike]

Hi,

I need to add and remove by code a TreeNode from a grouped ListGrid. The ListGrid is populate from a DataSource bind to a database.

I have tried this:

//TreeNode cc is a node place on a different level of the grid
cc.setAttribute("customName", getCustomName());
grid.getGroupTree().move(cc, parent, position);
fakeNodes.add(cc); //keep the node in the list so I can find it

And this add the row just fine.
But when it comes to remove it, if I do like this:

for (TreeNode child : fakeNodes) {
    if (child.getAttributeAsString("customName").equals(getStringToMatch()))) {
        grid.getGroupTree().remove(child);
        break;
    }
}

The "remove" action will freeze the browser, the CPU gets to 100% and I have to kill the browser.

The ListGrid is populate by DataSource, and the node I need to add is actually a clone of another node, place in a different level.

I also try to use the add method (So I end uup with two nodes instead that just one), and it also works, but when I try to remove it, the CPU complain.

Can you give me any help?


I'm using SmartGWT 3.0.

Thank you very much
Barbara

[Jkike]

During my experiments, I found out that if the added node is created brand new, then the remove call work just fine.

I recon the problem is due to the fact that in the code I posted, the node I move was already linked to some other object, and the remove call tried to remove also some of the old objects.

Anyway, it will be helpfull to have a confirm on my guess.

Thanks
Barbara