WP_List_Table::get_columns does not work for plugins

[cyplo]

see Ticket #15386 - the ticket is closed, however I have the very same problem with 3.1.3 version and the solution example provided do not work for me.

Wordpress claims that there is no function as get_list_table , I have changed it to _get_list_table, after that change it does launch but returns a null object.

[westi]

We do not support custom list table classes at the moment which is why there are no hooks for this.

When we have a stable api for them they will be supported - this was meant to happen in 3.2 but it missed the release unfortunately.

[chriscct7]

_ prefixed functions are private to the class. If you need a copy of the list table, the best current way of doing this is grabbing a copy of that list table file, moving it to your plugin then renaming it for now. Since the lack of a return on a private function is expected, closing as invalid.