New: here you can see usage of the TreeTable applet in a web application -
Multi-account Web Mailer, mWm

A real treegrid:

A simple table:

Below we demonstrate most attractive features of the advanced version:

Checkbox in any cell:

Editing of cell value - simple input field:

Editing of cell value - drop-down list (combobox):

Dragging of columns - reordering:

Hyperlink in cell:

Popup menu:

Multilanguage support (japanese):