MigrationsSqlGenerator.IndexTraits 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
从 、 AddPrimaryKeyOperation或 AddUniqueConstraintOperation生成索引特征的 CreateIndexOperationSQL 片段。
protected virtual void IndexTraits (Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);
protected virtual void IndexTraits (Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel? model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);
abstract member IndexTraits : Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.IndexTraits : Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
Protected Overridable Sub IndexTraits (operation As MigrationOperation, model As IModel, builder As MigrationCommandListBuilder)
参数
- operation
- MigrationOperation
操作。
- model
- IModel
如果存在没有模型的操作,则 null
可能是目标模型。
- builder
- MigrationCommandListBuilder
用于添加 SQL 片段的命令生成器。