Project: QGIS
Version: 2.10.0
Prior to version 2.8 you had to delete and recreate virtual fields if you wanted to change the expression for calculating the virtual field. In 2.10 you can now go to the Fields tab and press the small Expression button to open the expression editor and update the expression used for the virtual field.
This feature was developed by: Matthias Kuhn (OpenGIS) This feature was funded by: City of Uster, Switzerland
