JTreetable applet example 3 - edit
Here you can see how to provide cell editing.
First expand all tree.
Click on any "Price" cell - no edit available for Price column (via applet's param).
Click on any "Cover" column cell - you will see combobox widget to select cell value from a list.
Click on any "Ships in" column cell - the combobox is filled with values at runtime.
Book name column - here we implemented multi-edit cell. First three rows has inputbox in this cell,
and the last 4 rows - drop-down lists, dynamically filled at runtime.
(See oneditcell event handler in the html sources.)