[Qgis-user] Delete attribute in layer properties fields for SpatiaLite file

[francois.terreno at Safe-mail.net]

QGIS 2.01 _ Layer _ Properties _ Fields _ Toggle editing mode _ Delete column

I have loaded a SpatiaLite file with a few points and polygons.
I added some new attributes.
The delete column icon is not active and cannot be used.
What can I do in addition to activate the delete column icon?

Kind regards
Francois Terreno