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1）我有Enttiy类在其中有三个表，其代码在下面给出错误在我的代码第一种方法我有EF 4.1 VS 2010
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data.Entity.ModelConfiguration;
using System.Linq;
using System.Web;
namespace GridWithInlineEdit.Models
{
#region ENTITY BLOCK
[Table("TBLUSER", Schema = "orient")]
public class Users
{
public Users()
{
UsersDetailCollection = new List<Usersdetail>();
}
//
[Key, Column("UID", TypeName = "INT")]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Uid { get; set; }
[Required]
[StringLength(50, MinimumLength = 10, ErrorMessage = "Please Enter {0} Upto 50 Characters!")]
[RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed here!")]
[Column("FNAME", TypeName = "nvarchar")]
public string Fname { get; set; }
[Required]
[StringLength(100, MinimumLength = 10, ErrorMessage = "Please Enter {0} Upto 50 Characters!")]
[RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed here!")]
[Column("LNAME", TypeName = "nvarchar")]
public string Lname { get; set; }
public ICollection<Usersdetail> UsersDetailCollection { get; set; }
}
[Table("TBLUSERDETAIL", Schema = "orient")]
public class Usersdetail
{
public Usersdetail()
{
CountryCollection = new List<Countries>();
}
[Key, Column("ID", TypeName = "INT")]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ID { get; set; }
[StringLength(100)]
[Column("EMAIL", TypeName = "VARCHAR")]
public String Email { get; set; }
[StringLength(11)]
[Column("PHONE", TypeName = "VARCHAR")]
public String Phone { get; set; }
[Required]
public int? UserId { get; set; }
[ForeignKey("UserId"), Column("UID", TypeName = "INT")]
public virtual Users Users { get; set; }
[Required]
public int? CountryId { get; set; }
[ForeignKey("CountryId"), Column("CID", TypeName = "INT")]
public virtual Countries Countries { get; set; }
public ICollection<Countries> CountryCollection { get; set; }
}
[Table("TBLCOUNTRY", Schema = "orient")]
public class Countries
{
[Key, Column("CID", TypeName = "INT")]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Cid { get; set; }
[StringLength(50)]
[RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed here!")]
[Column("CNAME", TypeName = "VARCHAR")]
public String Cname { get; set; }
}
#endregion
#region ENTITY MAPPING BLOCK
public class UserMap : EntityTypeConfiguration<Users>
{
#region Constructors and Destructors
internal UserMap()
{
// Primary Key
HasKey(t => t.Uid);
Property(p => p.Uid).HasColumnName("UID").HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity).IsRequired();
// Table & Column Mappings
ToTable("TBLUSER");
Property(t => t.Fname).HasColumnName("FNAME").HasMaxLength(50);
Property(t => t.Lname).HasColumnName("LNAME").HasMaxLength(50);
}
#endregion
}
public class UserDetailMap : EntityTypeConfiguration<Usersdetail>
{
#region Constructors and Destructors
internal UserDetailMap()
{
// Primary Key
HasKey(t => t.ID);
HasKey(t => t.UserId);
HasKey(t => t.CountryId);
// Properties
Property(t => t.Email).HasMaxLength(100);
Property(t => t.Phone).HasMaxLength(11);
// Column Mappings
ToTable("TBLUSERDETAIL");
Property(t => t.ID).HasColumnName("ID").HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity).IsRequired();
Property(t => t.Email).HasColumnName("EMAIL");
Property(t => t.Phone).HasColumnName("PHONE");
Property(t => t.UserId).HasColumnName("UID");
Property(t => t.CountryId).HasColumnName("CID");
// Relationships
HasOptional(t => t.Users).WithMany().HasForeignKey(d => d.UserId);
HasOptional(t => t.Countries).WithMany().HasForeignKey(d => d.CountryId);
}
#endregion
}
public class CountryMap : EntityTypeConfiguration<Countries>
{
#region Constructors and Destructors
internal CountryMap()
{
// Primary Key
HasKey(t => t.Cid);
// Properties
Property(t => t.Cname).HasMaxLength(50);
// Column Mappings
Property(t => t.Cid).HasColumnName("CID").HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity).IsRequired();
Property(t => t.Cname).HasColumnName("CNAME");
}
#endregion
}
#endregion
}
2）第二是初始化类，其中与SQLSERVER连接字符串自2005年
连接字符串类代码在下面给出
using System;
using System.Data.Common;
using System.Data.Entity.Infrastructure;
namespace GridWithInlineEdit.Models
{
public static class Constants
{
public static string ConnectionString
{
get { return GetDecryptedConnectionString(); }
}
private static string GetDecryptedConnectionString()
{
return @"Data Source=193.193.193.254;Initial Catalog=EFCFUsersdb;;USER ID=sa;PASSWORD=123;Persist Security Info=True";
}
}
class EncryptedIDbConnectionFactory : IDbConnectionFactory
{
#region Private Fields
IDbConnectionFactory _connectionFactory;
#endregion
#region Constructors
public EncryptedIDbConnectionFactory(IDbConnectionFactory dbConnectionFactory)
{
if (dbConnectionFactory == null)
{
throw new ArgumentNullException("dbConnectionFactory can not be null");
}
_connectionFactory = dbConnectionFactory;
}
#endregion
#region IDbConnectionFactory implementation
public DbConnection CreateConnection(string nameOrConnectionString)
{
//decryption of connection string
string decryptedConnectionString =
GetDecryptedConnectionString(nameOrConnectionString);
return _connectionFactory.CreateConnection(decryptedConnectionString);
}
#endregion
#region Private Methods
private string GetDecryptedConnectionString(string nameOrConnectionString)
{
//use some encryption library to decrypt
return nameOrConnectionString;
}
#endregion
}
}
和Init类下面给出
using System.Data.Entity;
namespace GridWithInlineEdit.Models
{
public class Init : DropCreateDatabaseIfModelChanges<SampleContext>
{
protected override void Seed(SampleContext context)
{
base.Seed(context);
//context.Locations.Add(new Location() { LocationName = "Khanna, LDH" });
//context.Sessions.Add(new Session() { SessionName = "Entity Framework" });
context.SaveChanges();
}
}
}
3），这是在应用程序的全局文件samplecontext类代码
using System.Data.Entity;
using System.Data.SqlClient;
namespace GridWithInlineEdit.Models
{
public class SampleContext : DbContext
{
public SampleContext()
: base(new SqlConnection(Constants.ConnectionString) ,false)
//Data Source=193.193.193.254;Initial Catalog=EFCFUsersdb;Persist Security Info=True;User ID=sa;Password=123
{
Configuration.ProxyCreationEnabled = true;
Configuration.AutoDetectChangesEnabled = true;
}
public DbSet<Users> User { get; set; }
public DbSet<Usersdetail> UserDetail { get; set; }
public DbSet<Countries> Country { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Configurations.Add(new UserMap());
modelBuilder.Configurations.Add(new UserDetailMap());
modelBuilder.Configurations.Add(new CountryMap());
}
}
}
4）具有以下代码
using System.Data.Entity;
using System.Web.Mvc;
using System.Web.Routing;
using GridWithInlineEdit.Models;
namespace GridWithInlineEdit
{
// Note: For instructions on enabling IIS6 or IIS7 classic mode,
// visit http://go.microsoft.com/?LinkId=9394801
public class MvcApplication : System.Web.HttpApplication
{
public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleErrorAttribute());
}
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "User", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
}
protected void Application_Start()
{
//Database.DefaultConnectionFactory = new EncryptedIDbConnectionFactory(Database.DefaultConnectionFactory);
Database.SetInitializer<SampleContext>(new Init());
AreaRegistration.RegisterAllAreas();
RegisterGlobalFilters(GlobalFilters.Filters);
RegisterRoutes(RouteTable.Routes);
}
}
}
在我家控制器具有以下给出代码
> 1. using System.Web.Mvc; using GridWithInlineEdit.Models;
>
> namespace GridWithInlineEdit.Controllers {
> public class UserController : Controller
> {
>
>
> public ActionResult Index()
> {
> var db = new SampleContext();
> return View();
> }
>
> [HttpPost]
> public ActionResult Create()
> {
>
> //return View();
> return null;
> }
>
> } }
现在的问题是这样的，只要运行我的应用程序数据库没有创建和显示异常的服务器版本属性，当我看到通过把断点_db对象添加手表对索引操作结果。 请请解决或给出解决方案，我已经尝试了这么多时间，但我很困惑，为什么这种情况发生
SQL Server 2005中的第一个代码比较新的SQL Server版本更难以正确获取。该版本的任何特定原因？ – 2013-04-27 07:07:42
你对EF的配置是什么？你尝试删除自定义连接的东西 - 只是让它创建默认数据库，或使用不同的供应商等 – NSGaga 2013-04-27 18:56:33
@NSGaga我已经尽了一切努力，但没有得到任何结果。 – 2013-04-29 03:58:17