SqlServerModelBuilderExtensions.HasValueGenerationStrategy 方法

定义

命名空间:

Microsoft.EntityFrameworkCore

程序集:

Microsoft.EntityFrameworkCore.SqlServer.dll

包:

Microsoft.EntityFrameworkCore.SqlServer v8.0.0

针对SQL Server时，为标记为 OnAdd的键属性配置默认值生成策略。

public static Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionModelBuilder? HasValueGenerationStrategy (this Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionModelBuilder modelBuilder, Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy? valueGenerationStrategy, bool fromDataAnnotation = false);

static member HasValueGenerationStrategy : Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionModelBuilder * Nullable<Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionModelBuilder

<Extension()>
Public Function HasValueGenerationStrategy (modelBuilder As IConventionModelBuilder, valueGenerationStrategy As Nullable(Of SqlServerValueGenerationStrategy), Optional fromDataAnnotation As Boolean = false) As IConventionModelBuilder

参数

modelBuilder

IConventionModelBuilder

模型生成器。

valueGenerationStrategy

Nullable<SqlServerValueGenerationStrategy>

价值生成策略。

fromDataAnnotation

Boolean

指示配置是否是使用数据注释指定的。

返回

IConventionModelBuilder

如果应用了配置，则为同一生成器实例， null 否则为 。

注解

有关详细信息和示例，请参阅为实体类型和关系建模和使用 EF Core 访问SQL Server和Azure SQL数据库。