[Entity] public class Customer { [AddAttribute("Id", SqlDbType.Int)] public int CustomerId { get; set; } [AddAttribute("Name", SqlDbType.NVarChar)] public string CustomerName { get; set; } }
[Entity] public class Employee { [AddAttribute("Id", typeof(Guid), IsPrimaryKey = true)] public Guid EmployeeId { get; set; } [AddAttribute("Name", typeof(string), MaxLength = 50)] public string EmployeeName { get; set; } [AddAttribute("Department", typeof(string), Default = "IT")] public string EmployeeDepartment { get; set; } }In this example, we have an Employee class with three properties. The AddAttribute method is used to specify the data type, primary key and default value of the properties. Package library: System.ComponentModel.DataAnnotations.Schema Overall, Entity AddAttribute is a useful method in C# for annotating entity classes with additional metadata. The package libraries used may vary depending on the specific attributes being added.