使用Entity Framework Core迁移更改主键

本文介绍了使用Entity Framework Core迁移更改主键的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我试图通过Entity Framework Core Migrations更改表的主键：

I am trying to Change the Primary key of a table via Entity Framework Core Migrations:

protected override void Up(MigrationBuilder migrationBuilder) { migrationBuilder.DropPrimaryKey( name: "PK_Permissions", table: "Permissions"); }

当我尝试更新数据库时，出现以下错误消息：

When I try to update the database I get the following error message:

To change the IDENTITY property of a column, the column needs to be dropped and recreated.

如何更新数据库？

推荐答案

我找到了一个解决方案：这似乎是EF Core 1.1中的错误

I have found a solution: This seems to be a bug in EF Core 1.1

我更改了迁移

有关此信息的更多信息，请参见： thisworksonmymachine/2017/02/13/ef-core-the-setup-part-4/

More Information about this can be found here: thisworksonmymachine/2017/02/13/ef-core-the-setup-part-4/