Im trying to implement the Column Span of a TreeTableView Shown in the Cell Section of the TreeTableView wiki. But theres no documentation in how to do so.
Can anyone help me with this one?
Wiki: https://wikis.oracle.com/display/OpenJDK/TreeTableView+User+Experience+Documentation
There is an open Ticket for that: https://javafx-jira.kenai.com/browse/RT-24747 or if you have no account there, there is a description here: http://fxexperience.com/2012/10/cell-spanning-in-tableview/
Long story short: It is planned but neither implemented nor a version when it will be released.
But you may use ControlsFX, they have a SpreadsheetView that has the functionality.