Getting error while inserting department foreign key in Employee table - entity-framework

Question

I am beginner to Entity Framework. I want to insert employees along with department as foreign key, but I am getting the following error while adding records:
The INSERT statement conflicted with the FOREIGN KEY constraint \"FK_dbo.Employees_dbo.Departments_DepartmentId\". The conflict occurred in database \"EmpDB\", table \"dbo.Departments\", column 'Id'.\r\nThe statement has been terminated.
Department class:
namespace DbSet_Exmp.Models
{
public class Department
{
public int Id { get; set; }
public string DeptName { get; set; }
public virtual ICollection<Employee> Employees { get; set; }
}
}
Employee class:
namespace DbSet_Exmp.Models
{
public class Employee
{
public int Id { get; set; }
public string Name { get; set; }
public string Contact { get; set; }
public int Salary { get; set; }
public int DepartmentId { get; set; }
public virtual Department Department { get; set; }
}
}
DbContext class:
public class EmpDbContext:DbContext
{
public EmpDbContext() : base("name=myDBConString")
{
Database.SetInitializer(new DBInitializer());
}
public DbSet<Department> Departments { get; set; }
public DbSet<Employee> employees { get; set; }
}
Index action:
public ActionResult Index()
{
using (var context = new EmpDbContext())
{
Employee objEmp = new Employee() { Name = "Swara", Contact = "123569", Salary = 15000, DepartmentId = 2 };
context.employees.Add(objEmp);
context.SaveChanges();
}
return View();
}

Answer 1

Usually this error thrown when you are assigning a value to the ForeignKey but there is no such data with that value in ForeignKey table.
In your case there is no Department with Id = 2 in your Department table . So you can check it in your Departement table.