... up adding constraints to the DataTable objects Next, you'll see how to add restrictions to DataColumn objects Adding Restrictions to DataColumn Objects In this section, you'll see how to add restrictions ... need to keep this issue in mind when adding rows to a DataTable, which you'll see how to shortly That wraps up adding the primary key constraints to the DataTable objects Next, you'll see how to ... restrictions to the DataColumn objects stored in a DataTable Specifically, you'll see how to set the AllowDBNull, AutoIncrement, AutoIncrementSeed, AutoIncrementStep, ReadOnly, and Unique properties...