Question

我首先使用代码第一个数据库（MYSQL，ENTITYFRAMEWORK 6，VISUAL STUDIO 2015）我正在尝试使用生成的模型中的脚手架添加控制器

但我得到＆＃34;运行所选代码生成器序列时出错，不包含任何元素，无法检索...的元数据;序列不包含匹配元素＆＃34 ;;

模型是从数据库中成功生成的，但是使用scaffolding为指定模型添加控制器会返回错误。

DataContex

 using System;
using System.Data.Entity;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;

public partial class Model1 : DbContext
{
    public Model1()
        : base("name=Model1")
    {
    }

    public virtual DbSet<actor> actors { get; set; }
    public virtual DbSet<address> addresses { get; set; }
    public virtual DbSet<category> categories { get; set; }
    public virtual DbSet<city> cities { get; set; }
    public virtual DbSet<country> countries { get; set; }
    public virtual DbSet<customer> customers { get; set; }
    public virtual DbSet<film> films { get; set; }
    public virtual DbSet<film_actor> film_actor { get; set; }
    public virtual DbSet<film_category> film_category { get; set; }
    public virtual DbSet<film_text> film_text { get; set; }
    public virtual DbSet<inventory> inventories { get; set; }
    public virtual DbSet<language> languages { get; set; }
    public virtual DbSet<payment> payments { get; set; }
    public virtual DbSet<rental> rentals { get; set; }
    public virtual DbSet<staff> staffs { get; set; }
    public virtual DbSet<store> stores { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<actor>()
            .Property(e => e.first_name)
            .IsUnicode(false);

        modelBuilder.Entity<actor>()
            .Property(e => e.last_name)
            .IsUnicode(false);

        modelBuilder.Entity<actor>()
            .HasMany(e => e.film_actor)
            .WithRequired(e => e.actor)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<address>()
            .Property(e => e.address1)
            .IsUnicode(false);

        modelBuilder.Entity<address>()
            .Property(e => e.address2)
            .IsUnicode(false);

        modelBuilder.Entity<address>()
            .Property(e => e.district)
            .IsUnicode(false);

        modelBuilder.Entity<address>()
            .Property(e => e.postal_code)
            .IsUnicode(false);

        modelBuilder.Entity<address>()
            .Property(e => e.phone)
            .IsUnicode(false);

        modelBuilder.Entity<address>()
            .HasMany(e => e.customers)
            .WithRequired(e => e.address)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<address>()
            .HasMany(e => e.staffs)
            .WithRequired(e => e.address)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<address>()
            .HasMany(e => e.stores)
            .WithRequired(e => e.address)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<category>()
            .Property(e => e.name)
            .IsUnicode(false);

        modelBuilder.Entity<category>()
            .HasMany(e => e.film_category)
            .WithRequired(e => e.category)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<city>()
            .Property(e => e.city1)
            .IsUnicode(false);

        modelBuilder.Entity<city>()
            .HasMany(e => e.addresses)
            .WithRequired(e => e.city)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<country>()
            .Property(e => e.country1)
            .IsUnicode(false);

        modelBuilder.Entity<country>()
            .HasMany(e => e.cities)
            .WithRequired(e => e.country)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<customer>()
            .Property(e => e.first_name)
            .IsUnicode(false);

        modelBuilder.Entity<customer>()
            .Property(e => e.last_name)
            .IsUnicode(false);

        modelBuilder.Entity<customer>()
            .Property(e => e.email)
            .IsUnicode(false);

        modelBuilder.Entity<customer>()
            .HasMany(e => e.payments)
            .WithRequired(e => e.customer)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<customer>()
            .HasMany(e => e.rentals)
            .WithRequired(e => e.customer)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<film>()
            .Property(e => e.title)
            .IsUnicode(false);

        modelBuilder.Entity<film>()
            .Property(e => e.description)
            .IsUnicode(false);

        modelBuilder.Entity<film>()
            .Property(e => e.rating)
            .IsUnicode(false);

        modelBuilder.Entity<film>()
            .Property(e => e.special_features)
            .IsUnicode(false);

        modelBuilder.Entity<film>()
            .HasMany(e => e.film_actor)
            .WithRequired(e => e.film)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<film>()
            .HasMany(e => e.film_category)
            .WithRequired(e => e.film)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<film>()
            .HasMany(e => e.inventories)
            .WithRequired(e => e.film)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<film_text>()
            .Property(e => e.title)
            .IsUnicode(false);

        modelBuilder.Entity<film_text>()
            .Property(e => e.description)
            .IsUnicode(false);

        modelBuilder.Entity<inventory>()
            .HasMany(e => e.rentals)
            .WithRequired(e => e.inventory)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<language>()
            .Property(e => e.name)
            .IsUnicode(false);

        modelBuilder.Entity<language>()
            .HasMany(e => e.films)
            .WithRequired(e => e.language)
            .HasForeignKey(e => e.language_id)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<language>()
            .HasMany(e => e.films1)
            .WithOptional(e => e.language1)
            .HasForeignKey(e => e.original_language_id);

        modelBuilder.Entity<staff>()
            .Property(e => e.first_name)
            .IsUnicode(false);

        modelBuilder.Entity<staff>()
            .Property(e => e.last_name)
            .IsUnicode(false);

        modelBuilder.Entity<staff>()
            .Property(e => e.email)
            .IsUnicode(false);

        modelBuilder.Entity<staff>()
            .Property(e => e.username)
            .IsUnicode(false);

        modelBuilder.Entity<staff>()
            .Property(e => e.password)
            .IsUnicode(false);

        modelBuilder.Entity<staff>()
            .HasMany(e => e.payments)
            .WithRequired(e => e.staff)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<staff>()
            .HasMany(e => e.rentals)
            .WithRequired(e => e.staff)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<staff>()
            .HasMany(e => e.stores)
            .WithRequired(e => e.staff)
            .HasForeignKey(e => e.manager_staff_id)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<store>()
            .HasMany(e => e.customers)
            .WithRequired(e => e.store)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<store>()
            .HasMany(e => e.inventories)
            .WithRequired(e => e.store)
            .WillCascadeOnDelete(false);

        modelBuilder.Entity<store>()
            .HasMany(e => e.staffs)
            .WithRequired(e => e.store)
            .HasForeignKey(e => e.store_id)
            .WillCascadeOnDelete(false);
    }
}

我的模特

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity.Spatial;

[Table("sakila.actor")]
public partial class actor
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public actor()
    {
        film_actor = new HashSet<film_actor>();
    }

    [Key]
    [Column(TypeName = "usmallint")]
    public int actor_id { get; set; }

    [Required]
    [StringLength(45)]
    public string first_name { get; set; }

    [Required]
    [StringLength(45)]
    public string last_name { get; set; }

    [Column(TypeName = "timestamp")]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public DateTime last_update { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<film_actor> film_actor { get; set; }
}

有人可以帮忙解决这个问题吗？

Answer 1

问题是由于我安装的软件。它阻止了所有不允许的流量网络访问。

检查系统中是否有任何流量过滤软件

序列包含没有匹配的元素脚手架visual studio 2015

1 个答案: