Using Expressions to Select Feature Data
Concept Procedure Quick Reference

To search to select data

  1. Select the geospatial feature layer in Display Manager that contains the data you want to view.
  2. If you want to select data based on its location in the map, zoom the drawing window to the extents of the selected feature class.
  3. Click on the toolstrip to open the Data Table window.
  4. Click Search to Select at the bottom of the Data Table.
  5. Create the expression for your search:
    • Locate On Map — Selects all features in a location you specify. You can specify whether to select features completely within the selection area, within or crossing the selection area, or within a specified distance of the selection area. See Filtering by Location.

      For example, use a location condition to find all manholes in one section of town, or all parcels that touch a road, or all water pipes within 100 meters of a road.

    • Property Evaluation — Selects all features that have the property value you specify. Insert a property, an operator, and a value. See Evaluating Properties.

      For example, to select all pipes with a diameter greater than 10, specify Diameter > 10.

      You can view and insert available values for a property from a list.

  6. To create a complex property evaluation, insert an AND or OR operator, and then insert another property, operator, and value combination.

    Every operator must be preceded by a property. For example, to find parcels whose last purchase date is after 1990 and before 2005, the expression must look like this:

    Purchase_Date > 1990 AND Purchase_Date < 2005

  7. Validate your expression.
  8. To reuse your expression in the future, from the Options list in the Data Table, select Save Expression.
  9. When the expression is complete and valid, click OK.

    AutoCAD Map 3D highlights both the selected rows in the Data Table and the associated features on your map.