In treetable I have one of the columns - dropdown list. As default its value is “no changes”. When I add/remove nodes from tree, for all nodes dropdown list returns to the default value “no changes”. How can I prevent it?
The tree and treetable may repaint its nodes after changes in hierarchy ( adding | deleting items ), so there is no guarantee that changes in HTML ( such as select state changes ) will be preserved.
You need to use in-tree editor, or save state to the tree after changing anything in select and have a correct template function which will be able to render select in necessary state after repainting.