Pro C# 2010 and the .NET 4 Platform, Fifth Edition

22.3. Working with DataColumns

The DataColumn type represents a single column within a DataTable. Collectively speaking, the set of all DataColumn types bound to a given DataTable represents the foundation of a table's schema information. For example, if you were to model the Inventory table of the AutoLot database (see Chapter 21), you would create four DataColumns, one for each column (CarID, Make, Color, and PetName). Once you create your DataColumn objects, you typically add them into the columns collection of the DataTable type (using the Columns property).

Based on your background, you might know that you can assign a given column in a database table a set of constraints (e.g., configured as a primary key, assigned a default value, or ...