c# - Entity Framework 映射 fluent api 单独的实体映射

Question

我正在尝试分离我的实体图，但是当这样做时没有对数据库应用任何更改。为什么？

以下是我的代码:

//class for example 
 class UserMap : EntityTypeConfiguration<User>
{
    public UserMap()
    {
        this.ToTable("User");
        this.HasKey<int>(p => p.Id);
        this.Property(u => u.UserPin).IsRequired().HasMaxLength(2000);
    }
}
//my project context
 public class ProjectDbContext : DbContext
{
    public ProjectDbContext()
        : base("name=DefaultConnectionString")
    {

    }

    public DbSet<Project> Projects { get; set; }
    public DbSet<Image> Images { get; set; }
    public DbSet<User> Users { get; set; }
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
//inject my user map rules 
        base.OnModelCreating(modelBuilder);
        modelBuilder.Configurations.Add(new UserMap());

    }
}

如何注入(inject)我的 map 配置来应用？

Answer 1

您可以尝试如下所示。您错过了 public 关键字 :D

public class UserMap : EntityTypeConfiguration<User>
{
    public UserMap()
    {
        this.ToTable("User");
        this.HasKey<int>(p => p.Id);
        this.Property(u => u.UserPin).IsRequired().HasMaxLength(2000);
    }
}