ValueGenerationConvention 类

定义

命名空间:

Microsoft.EntityFrameworkCore.Metadata.Conventions

程序集:

Microsoft.EntityFrameworkCore.dll

包:

Microsoft.EntityFrameworkCore v8.0.0

一种约定，该约定将存储值生成配置为 OnAdd 在属于主键而不是任何外键一部分的属性上。

public class ValueGenerationConvention : Microsoft.EntityFrameworkCore.Metadata.Conventions.IEntityTypeBaseTypeChangedConvention, Microsoft.EntityFrameworkCore.Metadata.Conventions.IEntityTypePrimaryKeyChangedConvention, Microsoft.EntityFrameworkCore.Metadata.Conventions.IForeignKeyAddedConvention, Microsoft.EntityFrameworkCore.Metadata.Conventions.IForeignKeyOwnershipChangedConvention, Microsoft.EntityFrameworkCore.Metadata.Conventions.IForeignKeyPropertiesChangedConvention, Microsoft.EntityFrameworkCore.Metadata.Conventions.IForeignKeyRemovedConvention

type ValueGenerationConvention = class
    interface IEntityTypePrimaryKeyChangedConvention
    interface IConvention
    interface IForeignKeyAddedConvention
    interface IForeignKeyRemovedConvention
    interface IForeignKeyPropertiesChangedConvention
    interface IEntityTypeBaseTypeChangedConvention
    interface IForeignKeyOwnershipChangedConvention

Public Class ValueGenerationConvention
Implements IEntityTypeBaseTypeChangedConvention, IEntityTypePrimaryKeyChangedConvention, IForeignKeyAddedConvention, IForeignKeyOwnershipChangedConvention, IForeignKeyPropertiesChangedConvention, IForeignKeyRemovedConvention

继承

Object

ValueGenerationConvention

派生

Microsoft.EntityFrameworkCore.Metadata.Conventions.CosmosValueGenerationConvention

Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention

实现

IConvention IEntityTypeBaseTypeChangedConvention IEntityTypePrimaryKeyChangedConvention IForeignKeyAddedConvention IForeignKeyPropertiesChangedConvention IForeignKeyRemovedConvention IForeignKeyOwnershipChangedConvention

注解

有关详细信息和示例，请参阅 模型生成约定 。

构造函数

ValueGenerationConvention(ProviderConventionSetBuilderDependencies)

创建 ValueGenerationConvention 的新实例。

属性

Dependencies

此服务的依赖项。

方法

GetValueGenerated(IConventionProperty)	返回为给定属性设置的存储值生成策略。
GetValueGenerated(IReadOnlyProperty)	返回为给定属性设置的存储值生成策略。
ProcessEntityTypeBaseTypeChanged(IConventionEntityTypeBuilder, IConventionEntityType, IConventionEntityType, IConventionContext<IConventionEntityType>)	在实体类型的基类型更改后调用。
ProcessEntityTypePrimaryKeyChanged(IConventionEntityTypeBuilder, IConventionKey, IConventionKey, IConventionContext<IConventionKey>)	在实体类型的主键更改后调用。
ProcessForeignKeyAdded(IConventionForeignKeyBuilder, IConventionContext<IConventionForeignKeyBuilder>)	在将外键添加到实体类型后调用。
ProcessForeignKeyOwnershipChanged(IConventionForeignKeyBuilder, IConventionContext<Nullable<Boolean>>)	在更改外键的所有权值后调用。
ProcessForeignKeyPropertiesChanged(IConventionForeignKeyBuilder, IReadOnlyList<IConventionProperty>, IConventionKey, IConventionContext<IReadOnlyList<IConventionProperty>>)	在更改外键属性或主体键后调用。
ProcessForeignKeyRemoved(IConventionEntityTypeBuilder, IConventionForeignKey, IConventionContext<IConventionForeignKey>)	在删除外键后调用。