uniqueidentifier 与 bigint entity framework c# 代码不兼容

Question

我的 EF 代码中有这个实体 First

 public class Equipment
    {
        public Int64 Id { set; get; }
        public string Name { set; get; }
        public string Model { set; get; }
        public string Factory { set; get; }
        public DateTime SubmitDateTime { set; get; }
        public GUID OrganizationId { set; get; }
    }

我改成了

 public class Equipment
    {
        public Int64 Id { set; get; }
        public string Name { set; get; }
        public string Model { set; get; }
        public string Factory { set; get; }
        public DateTime SubmitDateTime { set; get; }
        public Int64 OrganizationId { set; get; }
    }

但是在运行之后我得到这个错误：

An exception of type 'System.Data.SqlClient.SqlException' occurred in EntityFramework.dll but was not handled in user code

Additional information: Operand type clash: uniqueidentifier is incompatible with bigint

这里是我的迁移方法：

 public class MigrationsConfiguration : DbMigrationsConfiguration<DataContext>
    {

        public MigrationsConfiguration()
        {
            this.AutomaticMigrationDataLossAllowed = true;
            this.AutomaticMigrationsEnabled = true;
        }



    }

我的数据库中有很多数据。所以我无法删除它来生成它again.so我该如何解决这个错误？

Answer 1

通过三个步骤我改变了它：第一的我在我的实体中添加了另一列

public GUID OrganizationId { set; get; }
public int64 OrganizationId2 { set; get; }

秒我删除了实体中的 guid 列

public int64 OrganizationId2 { set; get; }

最后一步最后我重命名了我的新专栏

public int64 OrganizationId { set; get; }

uniqueidentifier 与 bigint entity framework c# 代码不兼容

uniqueidentifier is incompatible with bigint entity framework c# code first

c#

entity-framework

guid

int64

entity-framework-migrations