private void Generate_Click(object sender, RoutedEventArgs e)
{
DateTime dt = DateTime.Now;
txtKey.Text = SerialKeyManager.GetKey(txtUserId.Text, dtStart.SelectedDate.Value, dtTo.SelectedDate.Value);
var isLicenseActive = SerialKeyManager.IsLicenseActive(txtKey.Text, txtUserId.Text, DateTime.Now, out dt);
}
private void ValidateLicenseKey(UserInfo userInfo)
{
bool isActiveLicense = false;
DateTime validTill = default(DateTime);
if (!string.IsNullOrEmpty(userInfo.UserId))
{
try
{
isActiveLicense = SerialKeyManager.IsLicenseActive(userInfo.Key, userInfo.UserId, DateTime.Now, out validTill);
}
catch (Exception)
{
isActiveLicense = false;
}
}
if (isActiveLicense)
{
userInfo.IsValidKey = true;
txtinfo.Text = string.Format(validLicense, validTill.ToShortDateString());
txtinfo.Foreground = Brushes.Green;
}
else
{
userInfo.IsValidKey = false;
txtinfo.Text = invalidLicense;
txtinfo.Foreground = Brushes.Red;
}
}