In the Constraint Type field, click the down-arrow and click Range. Enter a minimum and maximum value for the range and, for each one, specify whether the range is inclusive or exclusive of that value. For example, if the range is 1-10, specify whether 1 and 10 are included or not.
If the data type for this property is Decimal , define the precision and scale before entering values in the list. If you enter values in the list that exceed the precision or scale, those values are rounded.
If the data type for this property is DateTime, the list editor displays a calendar from which you can select specific dates. Once you choose the first date, the list creates a new entry and you can choose the next date.
When you click OK, AutoCAD Map 3D checks the values in the list. If the values are not valid, for example, if they do not match the data type or they exceed the length of the string definition, you will see an error message.
You can specify a single-property uniqueness constraint or a composite-property uniqueness constraint. A single-property uniqueness constraint ensures that the value for that property is unique within the feature class. A composite-property uniqueness constraint (sometimes called a “paired constraint”) specifies multiple properties whose combined values are unique. For example, you can constrain the combined Street_Number, Street_Name, and City fields to uniquely identify a building address.