| Class | Description | |
|---|---|---|
 | CaptionAttribute | The caption for this column |
| DefaultValueAttribute | The default value for this column |
| MaxLengthAttribute | The maximum length for a string column |
| NotNullAttribute | The field cannot be null even if it is declared as a nullable type |
| RequiredAttribute | The field cannot be null, the default value for the type, or string.empty if it is a string |