void IService1.DeleteCustomer(int customerID) // DeleteCustomer
 {
     try
     {
         using (VinylRecordsShopEntities context = new VinylRecordsShopEntities())
         {
             tblCustomer customerToDelete = (from r in context.tblCustomers where r.CustomerID == customerID select r).First();
             context.tblCustomers.Remove(customerToDelete);
             context.SaveChanges();
         }
     }
     catch (Exception ex)
     {
         System.Diagnostics.Debug.WriteLine("Exception" + ex.Message.ToString());
     }
 }
 // ADD , EDIT I DELETE ZA CUSTOMER
 vwCustomer IService1.AddCustomer(vwCustomer customer) // AddCustomer
 {
     try
     {
         using (VinylRecordsShopEntities context = new VinylRecordsShopEntities())
         {
             if (customer.CustomerID == 0)
             {   // ZA ADD
                 tblCustomer newCustomer = new tblCustomer();
                 newCustomer.Name     = customer.Name;
                 newCustomer.LastName = customer.LastName;
                 newCustomer.Country  = customer.Country;
                 newCustomer.Address  = customer.Address;
                 newCustomer.City     = customer.City;
                 newCustomer.Mobile   = customer.Mobile;
                 context.tblCustomers.Add(newCustomer);
                 context.SaveChanges();
                 customer.CustomerID = newCustomer.CustomerID;
                 return(customer);
             }
             else
             {   // ZA EDIT
                 tblCustomer customerToEdit = (from r in context.tblCustomers where r.CustomerID == customer.CustomerID select r).First();
                 customerToEdit.Name                 = customer.Name;
                 customerToEdit.LastName             = customer.LastName;
                 customerToEdit.Country              = customer.Country;
                 customerToEdit.Address              = customer.Address;
                 customerToEdit.City                 = customer.City;
                 customerToEdit.Mobile               = customer.Mobile;
                 context.Entry(customerToEdit).State = EntityState.Modified;
                 context.SaveChanges();
                 return(customer);
             }
         }
     }
     catch (Exception ex)
     {
         System.Diagnostics.Debug.WriteLine("Exception" + ex.Message.ToString());
         return(null);
     }
 }