c# - Entity Framework 代码优先、MVC、SqlException

Question

我对代码优先方法有疑问

我的模型:

public class Articles
{
    [Key]
    public int ArticleID { get; set; }

    [Required(ErrorMessage ="Wymagane podanie tytułu!")]
    public string Title { get; set; }
    [Required(ErrorMessage = "Wymagane podanie krótkiego opisu!")]
    public string ShortDesc { get; set; }
    [Required(ErrorMessage = "Wymagane podanie treści!")]
    public string Content { get; set; }
    public string Author { get; set; }
    public string Tags { get; set; }
}

我在 web.config 中的连接字符串:

<connectionStrings>
    <add name="ArticlesSConnectionString" 
         connectionString="Data Source=(LocalDb)\v11.0; Initial Catalog=BazaA;Integrated Security=SSPI" 
         providerName="System.Data.SqlClient" />  
</connectionStrings>

上下文:

public class ArticlesContext : DbContext
{
    public ArticlesContext() : base("ArticlesConnectionString") { }
    public DbSet<Articles> ArticlesS { get; set; }
}

Controller :

public class AdminController : Controller
{
    // GET: Admin
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult addArticle(Articles article)
    {
        if (!ModelState.IsValid) { return View("Index", article); }
        else
        {
            ArticlesContext db = new ArticlesContext();

                db.ArticlesS.Add(article);
                db.SaveChanges();

            return View("Index");
        }
    }
}

错误:

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

在线:

db.ArticlesS.Add(article);

我不知道哪里出了问题......

Answer 1

获取服务并启动 SQL Server 或您的 Conn 字符串不好我认为您必须在连接字符串中包含 Context 类名，

<connectionStrings>
<add name="ArticlesContext" 
     connectionString="Data Source=(LocalDb)\v11.0;AttachDbFileName=|DataDirectory|\BazaA.mdf; Initial Catalog=BazaA;Integrated Security=SSPI" 
     providerName="System.Data.SqlClient" />