Steps to reproduce:
* Create a field called abc and give it read-only text field type
* Place it on some view screens
* Tie it to some actions in the workflow so it can get populated programatically.
* Go to your dashboard, add a pie chart gadget, under the statistic type, it lists all fields but does not list the ones with read-only text field type.
If I recreate this field using another type e.g. select list and it will appear in the pie chart but I lose the read-only attribute on it. Again, if I use select list and only place it on the view screen and not the edit screen, it can still get edited via bulk edit.
Please let me know what I can do to main the read-only status and have this field appear in the pie-chart.