Primary Key
ProtectedcopyCopies initialization data from a plain object to the class instance. Only copies properties that already exist on the class to prevent creating new fields. Special handling for DefaultValue fields to extract actual values from SQL Server syntax.
The initialization data object
Returns a plain object suitable for JSON serialization. Called automatically by JSON.stringify().
Defines allowed values for entity fields with value lists. Supports dropdowns, validations, and data integrity constraints.