CAD Integration

First you should look at the better query tool listed above this one, because it works better! If you're still interested in this as an example of working in AutoLisp then,... This download is an AutoLISP routine that selects features by feature-attribute values in ArcGIS for AutoCAD. It uses a combination of standard AutoLISP and the ArcGIS for AutoCAD AutoLISP API. It has a simple command line interface that allows me to click through the schema of feature classes in my drawing to build a simple equality-query for the selected feature class. (ie This = That)

You can use this AutoLISP file, as is… if it works for you, or you can use it as an example of how to build your own query tool that could make more sophisticated comparisons.