private void frmMain_Shown(object sender, EventArgs e)
{
//Initialize variables with default values
MyLicense _lic = null;
var _msg = string.Empty;
LicenseStatus _status;
//Read public key from resources
_certPubicKeyData = DemoLicense.Properties.Resource.Licensing;
//Check if the XML license file exists
if (File.Exists("license.lic"))
{
_lic = (MyLicense)LicenseHandler.ParseLicenseFromBASE64String(
typeof(MyLicense),
File.ReadAllText("license.lic"),
_certPubicKeyData,
out _status);
}
else
{
_status = LicenseStatus.INVALID;
_msg = "Your copy of this application is not activated";
}
switch (_status)
{
case LicenseStatus.VALID:
//TODO: If license is valid, you can do extra checking here
//TODO: E.g., check license expiry date if you have added expiry date property to your license entity
//TODO: Also, you can set feature switch here based on the different properties you added to your license entity
//Here for demo, just show the license information and RETURN without additional checking
licInfo.ShowLicenseInfo(_lic);
return;
default:
//for the other status of license file, show the warning message
//and also popup the activation form for user to activate your application
MessageBox.Show(_msg, string.Empty, MessageBoxButtons.OK, MessageBoxIcon.Warning);
using (var frm = new frmActivation())
{
frm.CertificatePublicKeyData = _certPubicKeyData;
frm.ShowDialog();
//Exit the application after activation to reload the license file
//Actually it is not nessessary, you may just call the API to reload the license file
//Here just simplied the demo process
Application.Exit();
}
break;
}
}
private void frmMain_Shown(object sender, EventArgs e)
{
//Initialize variables with default values
MyLicense _lic = null;
string _msg = string.Empty;
LicenseStatus _status = LicenseStatus.UNDEFINED;
//Check if the XML license file exists
if (File.Exists("license.lic"))
{
_lic = (MyLicense)LicenseHandler.ParseLicenseFromBASE64String(typeof(MyLicense), File.ReadAllText("license.lic"), "LicenseVerify.cer", out _status, out _msg);
}
else
{
_status = LicenseStatus.INVALID;
_msg = "Your copy of this application is not activated";
}
switch (_status)
{
case LicenseStatus.VALID:
//TODO: If license is valid, you can do extra checking here
//TODO: E.g., check license expiry date if you have added expiry date property to your license entity
//TODO: Also, you can set feature switch here based on the different properties you added to your license entity
//Here for demo, just show the license information and RETURN without additional checking
licInfo.ShowLicenseInfo(_lic);
return;
default:
//for the other status of license file, show the warning message
//and also popup the activation form for user to activate your application
MessageBox.Show(_msg, string.Empty, MessageBoxButtons.OK, MessageBoxIcon.Warning);
using (frmActivation frm = new frmActivation())
{
frm.ShowDialog();
//Exit the application after activation to reload the license file
//Actually it is not nessessary, you may just call the API to reload the license file
//Here just simplied the demo process
Application.Exit();
}
break;
}
}
