Bug report #12174
$rownum returns 0 in labeling engine
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Labelling | ||
| Affected QGIS version: | master | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | invalid |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 20365 |
Description
Using the variable $rownum returns a value of 0 for all rows when used for labeling purposes.
Steps to replicate:
Set labeling on layer to the expression $rownum
What happens:
All labels are 0
What should happen:
Each label corresponds to the feature's row number
Tested in latest nightly from Osgeo4W. Problem also occurs in 2.6.1.
History
#1
Updated by Martin Dobias almost 10 years ago
- Resolution set to invalid
- Status changed from Open to Closed
$rownum is only valid in the context of field calculator - in all other occurrences it will be zero. You can use $id to access feature's ID (but ID does not need to be going from 0 by steps of 1).