我的ASP.NET MVC项目未获取我的SQL Server Express值

Question

I am new to ASP.NET MVC and I am currently having problem retrieving values from my SQL Server database that I have specified in my web.config file, Basically I have created a class library project which has the Employee and Department classes and IDepartmentData interface that has the IQueryable<Employee> and IQueryable<Department>

Here is how my classes look like:

namespace e.Manager.Data
{
    public class Department
    {
        public int Id { set; get; }
        public string Name { get; set; }
        public ICollection<Employee> Employees { get; set; } 
    }
}

namespace e.Manager.Data
{
    [Table("Person")]
    public class Employee
    {
        public virtual int Id { set; get; }
        public virtual string Name { set; get; }
    }
}

and here is my iInterface:

namespace e.Manager.Data
{
    public interface  IDepartmentData
    {
        IQueryable<Employee> Employees { get; }
        IQueryable<Department> Departments { get; }
    }
}

and of course I have a reference of this project in my ASP.NET MVC web project.

Here's my class DepartmentDb :

namespace eManager.Web.Infrastructure
{
    public class DepartmentDb : DbContext, IDepartmentData
    {
       public DbSet<Employee> Employees { set; get; }
       public  DbSet<Department> Departments { set; get; }

       IQueryable<Employee> IDepartmentData.Employees
       {
            get { return Employees; }
       }

       IQueryable<Department> IDepartmentData.Departments
       {
            get { return Departments; }
       }
    }
}

and here is my connection string:

<connectionStrings>
    <add name="DepartmentDb" 
         connectionString="database=sample;server=CON0389\SQLEXPRESS; Integrated Security=SSPI" 
         providerName="System.Data.SqlClient"/>
</connectionStrings>

and my table contains the relevant tables Person and Department

Here is my Index action method:

 public class HomeController : Controller
 {
        private DepartmentDb DbObj = new DepartmentDb();

        public ActionResult Index()
        {
            var department= DbObj.Departments;

            return View(department);
        }
}

but my index doesn't retrieve the values that are within the DB is there is something wrong that I am doing here? Thank you guys in advance.

Answer 1

谢谢您的回答，我已经弄清楚了我的项目出了什么问题，问题是我没有将对象映射到SQL中的表，这就是为什么count返回0的原因。