Indicates whether the field values can be automatically generated.
property AutoGenerateValue default arAutoInc;
Use the AutoGenerateValue property to indicate whether the field values can be automatically generated.
When the property value is arAutoInc, a new incrementing value for the field will be generated automatically when inserting a new record. Otherwise (arNone and arDefault values), the field will be empty. The default value is arAutoInc.
Note: An attempt to change the AutoGenerateValue property when the field dataset is open generates an exception. Thus, AutoGenerateValue only works with persistent field components, which remain when the dataset is closed.