* The `Id` field which is required by the database for the primary key.
*`[DataType(DataType.Date)]`: The [DataType](/dotnet/api/microsoft.aspnetcore.mvc.dataannotations.internal.datatypeattributeadapter) attribute specifies the type of the data (`Date`). With this attribute:
* The user is not required to enter time information in the date field.
* Only the date is displayed, not time information.
[DataAnnotations](/dotnet/api/system.componentmodel.dataannotations) are covered in a later tutorial.