An existing connection was forcibly closed by the remote host

I resolved this by sending all the columns to employee class by just adding

Emptype = EmployeeType.PartTimeEmployee,

and return it to the method.

now my code is :

while (dr.Read())
                {
                    //emps.id = Convert.ToInt16(dr[0]);
                    //emps.name=dr[1].ToString();
                    //emps.gender = dr[2].ToString();
                    //emps.dob = Convert.ToDateTime(dr[3]);
                    if ((EmployeeType)dr["EmployeeType"] == EmployeeType.FullTimeEmployee)
                    {
                        MyEmployee = new FullTimeEmployee()
                       {
                           id = Convert.ToInt16(dr[0]),
                           name = dr["name"].ToString(),
                           gender = dr["Gender"].ToString(),
                           dob = Convert.ToDateTime(dr["DateOfBirth"]),
                         Emptype = EmployeeType.FullTimeEmployee,//which i missed
                           AnnualSalary = Convert.ToInt16(dr["AnnualSalary"])
                       };
                    }
                    else
                    {
                        MyEmployee = new PartTimeEmployee
                       {
                           id = Convert.ToInt16(dr[0]),
                           name = dr["name"].ToString(),
                           gender = dr["Gender"].ToString(),
                           dob = Convert.ToDateTime(dr["DateOfBirth"]),
                           HourlyRate = Convert.ToInt16(dr["HourlyPay"]),
                         Emptype = EmployeeType.PartTimeEmployee,//Which i missed

                           HoursWorked = Convert.ToInt16(dr["HoursWorked"])
                       };
                    }
                }

            }
            return MyEmployee;

NOTE:I hope this error is caused by the missing the parameter of the class