ValueGenerationConvention 類別

定義

命名空間:

Microsoft.EntityFrameworkCore.Metadata.Conventions

組件:

Microsoft.EntityFrameworkCore.dll

套件:

Microsoft.EntityFrameworkCore v8.0.0

慣例，會將儲存值產生設定為 OnAdd 主鍵一部分的屬性，而不是任何外鍵的一部分。

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

繼承

Object

ValueGenerationConvention

衍生

Microsoft.EntityFrameworkCore.Metadata.Conventions.CosmosValueGenerationConvention

Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention

實作

IConvention IEntityTypeBaseTypeChangedConvention IEntityTypePrimaryKeyChangedConvention IForeignKeyAddedConvention IForeignKeyPropertiesChangedConvention IForeignKeyRemovedConvention IForeignKeyOwnershipChangedConvention

備註

如需詳細資訊和範例，請參閱 模型建置慣例 。

建構函式

ValueGenerationConvention(ProviderConventionSetBuilderDependencies)

建立 ValueGenerationConvention 的新執行個體。

屬性

Dependencies

此服務的相依性。

方法

GetValueGenerated(IConventionProperty)	傳回為指定屬性設定的存放區值產生策略。
GetValueGenerated(IReadOnlyProperty)	傳回為指定屬性設定的存放區值產生策略。
ProcessEntityTypeBaseTypeChanged(IConventionEntityTypeBuilder, IConventionEntityType, IConventionEntityType, IConventionContext<IConventionEntityType>)	在實體類型的基底類型變更之後呼叫。
ProcessEntityTypePrimaryKeyChanged(IConventionEntityTypeBuilder, IConventionKey, IConventionKey, IConventionContext<IConventionKey>)	變更實體類型的主鍵之後呼叫。
ProcessForeignKeyAdded(IConventionForeignKeyBuilder, IConventionContext<IConventionForeignKeyBuilder>)	在將外鍵新增至實體類型之後呼叫。
ProcessForeignKeyOwnershipChanged(IConventionForeignKeyBuilder, IConventionContext<Nullable<Boolean>>)	在外鍵的擁有權值變更之後呼叫。
ProcessForeignKeyPropertiesChanged(IConventionForeignKeyBuilder, IReadOnlyList<IConventionProperty>, IConventionKey, IConventionContext<IReadOnlyList<IConventionProperty>>)	在外鍵屬性或主體索引鍵變更之後呼叫。
ProcessForeignKeyRemoved(IConventionEntityTypeBuilder, IConventionForeignKey, IConventionContext<IConventionForeignKey>)	移除外鍵之後呼叫。