Automated unique sequential ID field.

Discussion created by mayad85 on Mar 1, 2011
Latest reply on Mar 13, 2011 by mayad85
Hi all,

I posted this in another ArcGIS forum (link), and it was suggested to post it here as well.

[INDENT]This may be a bit of a newbie question but I was hoping someone could help me. I need to create a unique sequential id field ("ID_NUMBER") that is not a GlobalID or based on the Object ID field and whose range is fixed (say from 200,000 to 400,000). It is for a feature class of approx 1000 records. I have managed to use the field calculator to populate the "ID_NUMBER" field for existing records, but what I would like to do now is to automate this process so that when a new feature is drawn/created the "ID_NUMBER" field is automatically populated with the next available ID number within the specified range.

Is there a way to do this using existing ArcGIS functionality/settings, such as through subtypes or domains? Or will this need to be programmatically implemented? I've had a brief look through the previous forums but couldn't find anything to point me in the right direction.

I am working with ArcGIS Desktop 9.3.1 and have access to an ArcInfo licence.

Any advice much appreciated![/INDENT]