public string UpdateEmployee(EMPLOYEE Emp)
 {
     if (Emp != null)
     {
         using (EmployeeConnection Obj = new EmployeeConnection())
         {
             var      Emp_   = Obj.Entry(Emp);
             EMPLOYEE EmpObj = Obj.EMPLOYEEs.Where(x => x.Emp_Id == Emp.Emp_Id).FirstOrDefault();
             EmpObj.Emp_Age  = Emp.Emp_Age;
             EmpObj.Emp_City = Emp.Emp_City;
             EmpObj.Emp_Name = Emp.Emp_Name;
             Obj.SaveChanges();
             return("Employee Updated Successfully");
         }
     }
     else
     {
         return("Employee Not Updated! Try Again");
     }
 }
 public string DeleteEmployee(EMPLOYEE Emp)
 {
     if (Emp != null)
     {
         using (EmployeeConnection Obj = new EmployeeConnection())
         {
             var Emp_ = Obj.Entry(Emp);
             if (Emp_.State == System.Data.EntityState.Detached)
             {
                 Obj.EMPLOYEEs.Attach(Emp);
                 Obj.EMPLOYEEs.Remove(Emp);
             }
             Obj.SaveChanges();
             return("Employee Deleted Successfully");
         }
     }
     else
     {
         return("Employee Not Deleted! Try Again");
     }
 }