更新时间:2023-12-01 14:13:28
要么应用 NotMapped
对您的业务类别的数据注释:
[NotMapped]
public class Specific:数据特定
{
}
或使用 忽略
Fluent API:
modelBuilder.Ignore< Specific>();
How can I avoid creating a column as "Discriminator" inside the database , If I inherit my business class from model class ( model class is mapped on database table).
Because, at the moment, if I inherit my business class ( e.g Specifics) to an existing model class ( i.e DataSpecific ), It asks for code first migration. In the migration, I can see discriminator as new column. I really don't want this. Because, original model class is being used in the whole application and that code works fine.
How can I stop the creation of "descriminator" column
C# Code :
Model Class
public class DataSpecific
{
}
Busines Class
public class Specific
{
}
as a result I can see following code in the migration
AddColumn("dbo.Consignments", "Discriminator", c => c.String(nullable: false, maxLength: 128));
How can I avoid this?
Either apply NotMapped
Data Annotation to your business class:
[NotMapped]
public class Specific : DataSpecific
{
}
or use Ignore
Fluent API:
modelBuilder.Ignore<Specific>();