Update the children of node in tree (not recursively, to update recursively, use gda.tree.Tree.updatePart). If node is null then the top level nodes are updated.
a #GdaTreeNode node in tree, or null
TRUE if no error occurred.
TreeException
Update the children of node in tree (not recursively, to update recursively, use gda.tree.Tree.updatePart). If node is null then the top level nodes are updated.