SqlServerModelBuilderExtensions.HasValueGenerationStrategy 方法

  • 參考

定義

命名空間:
Microsoft.EntityFrameworkCore
組件:
Microsoft.EntityFrameworkCore.SqlServer.dll
套件:
Microsoft.EntityFrameworkCore.SqlServer v3.0.0
套件:
Microsoft.EntityFrameworkCore.SqlServer v3.1.0
套件:
Microsoft.EntityFrameworkCore.SqlServer v5.0.0
套件:
Microsoft.EntityFrameworkCore.SqlServer v6.0.0
套件:
Microsoft.EntityFrameworkCore.SqlServer v7.0.0
套件:
Microsoft.EntityFrameworkCore.SqlServer v8.0.0

設定目標SQL Server時，標示為 OnAdd 之索引鍵屬性的預設值產生策略。

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

參數

modelBuilder
IConventionModelBuilder

模型產生器。

valueGenerationStrategy
Nullable<SqlServerValueGenerationStrategy>

價值產生策略。

fromDataAnnotation
Boolean

指出是否使用資料批註來指定組態。

傳回

IConventionModelBuilder

如果套用組態，則為相同的產生器實例， null 否則為 。

備註

如需詳細資訊和範例，請參閱使用 EF Core建立實體類型和關聯性的模型化，以及存取SQL Server和Azure SQL資料庫。

適用於