private void button_Inventory_Click(object sender, EventArgs e)
{
AccountDatabaseAccess Ada = new AccountDatabaseAccess();
Account user = new Account();
user.FirstName = firstNametxt.Text;
user.LastName = lastNametxt.Text;
user.Username = usernametxt.Text;
user.Password = passwordtxt.Text;
user.UserType = usertypetxt.Text;
user.Address = addresstxt.Text;
user.EmailAddress = emailtxt.Text;
user.Contact = contacttxt.Text;
Ada.addAccount(user);
}