Hello,
DOMAINS are a geodatabase feature and as such, can only be properly translated into an AXF (think of it as an ArcPad mini-geodatabase) - not a shapefile 😞
If you want to include a drop-down list of values for your shapefiles there are a couple of options:
If you only have a few values in your domain, you can use ArcPad to build a QuickForm with drop-down lists for your shapefile. Simply list your values separated by a comma in the selected field on the Controls page of the QuickForm dialog.
If you have lots of values - you should list them in a table and then associate the to the shapefile field using the Forms Editor in ArcPad Studio.
Both of these techniques are well documented in the ArcPad Help.
- Hannah