/// <summary>
/// validate login credentials of staff member
/// </summary>
/// <param name="credentials"></param>
/// <returns>StaffID</returns>
public int CheckStaffLogin(Credentials credentials)
{
try
{
if (credentials != null)
{
return(_repository.CheckStaffLogin(credentials));
}
else
{
throw new NullReferenceException();
}
}
catch (Exception ex)
{
throw ex;
}
}