.NET Core 使用 EF Core 之Code First
作者:互联网
1.在.NET Core项目中使用Nuget引用包
Sql Server 请安装 Microsoft.EntityFrameworkCore.SqlServer
2.添加实体类
[Table("AdminUsers")] public class AdminUser { [Key] public string Id { get; set; } [DisplayName("名称")] [MaxLength(30), Required] public string Name { get; set; } [DisplayName("创建日期")] public DateTimeOffset Created { get; set; } [DisplayName("创建日期")] public DateTimeOffset Modified { get; set; } public virtual void Create(WFDbContext db) { Id = Guid.NewGuid().ToString(); Created = Modified = DateTimeOffset.Now; } public virtual void Modify(WFDbContext db) { Modified = DateTimeOffset.Now; db.Entry(this).State = EntityState.Modified; } }View Code
3.添加数据库上下文
public class WFDbContext : DbContext { public WFDbContext(DbContextOptions<WFDbContext> options) : base(options) { } public DbSet<AdminUser> AdminUsers { get; set; } }View Code
4.配置EFCore ,在Startup中添加如下代码
public void ConfigureServices(IServiceCollection services) { services.AddDbContextPool<WFDbContext>(options => options.UseSqlServer("Data Source=.;Initial Catalog=;User ID =;Password =;Integrated Security=True;"));//配置数据库连接字符串 }
5.执行如下命令,默认项目设置为Model所在项目
PM> Add-Migration FirstMigration
出现这个提示,创建Migration成功,但是我的项目未引用Microsoft.EntityFrameworkCore.SqlServer
标签:DateTimeOffset,Core,Code,get,EF,Modified,options,set,public 来源: https://www.cnblogs.com/GoCircle/p/11055913.html