private void Form3_Load(object sender, EventArgs e)
{
txtProductCode.Text = AppLicense.GetProductCode();
txtActivation.Text = AppConfig.GetLicense();
if (AppLicense.IsValid("", "", txtActivation.Text))
{
DateTime dt = AppLicense.GetValidUntilDate("", "", txtActivation.Text);
if (dt == DateTime.MinValue)
{
lblUntil.Text = "No License";
}
else
{
lblUntil.Text = "License Valid Until : " + dt.ToString("dd MMM yyyy hh:mm tt");
}
}
else
{
lblUntil.Text = "No License";
}
txtProductCode_TextChanged(txtProductCode, EventArgs.Empty);
}
private void button1_Click(object sender, EventArgs e)
{
if (AppLicense.IsValid("", "", txtActivation.Text) == false)
{
MessageBox.Show("Invalid License Key");
return;
}
DateTime dt2 = AppLicense.GetValidUntilDate("", "", AppConfig.GetLicense());
DateTime dt = AppLicense.GetValidUntilDate("", "", txtActivation.Text);
if (dt > dt2)
{
MessageBox.Show("Thank you for activating");
AppConfig.AddOrUpdateAppSettings("License", txtActivation.Text);
}
else
{
MessageBox.Show("Fail to apply old license");
}
Close();
}
