private void SuppEdit_Click(object sender, RoutedEventArgs e)
        {
            dataAccess data = new dataAccess();
            suppliers  supp = new suppliers();

            if (SupplierID.Text == "" || CompanyName.Text == "" || Address.Text == "" || City.Text == "" || Region.Text == "" ||
                Postal.Text == "" || Country.Text == "" || Email.Text == "" || Phone.Text == "")
            {
                MessageBox.Show("All Fields are required");
            }
            else
            {
                supp.Address     = Address.Text;
                supp.City        = City.Text;
                supp.CompanyName = CompanyName.Text;
                supp.Country     = Country.Text;
                supp.Email       = Email.Text;
                supp.Phone       = long.Parse(Phone.Text);
                supp.PostalCode  = int.Parse(Postal.Text);
                supp.Region      = Region.Text;
                supp.SupplierID  = int.Parse(SupplierID.Text);

                data.editSuppliers(supp);
                MessageBox.Show("Suppliers" + supp.CompanyName + " Modified Successfully");
            }
        }