/// <summary>Displays <see cref="NetworkLicenseBrowseForm"/> Initializes licensing objects.</summary>
private void InitializeLicensingObjects()
{
using (NetworkLicenseBrowseForm dialog = new NetworkLicenseBrowseForm())
{
if (dialog.ShowDialog() == DialogResult.OK)
{
LicenseConfiguration.LicenseFilePath = dialog.SelectedPath;
}
else
{
Environment.Exit(0);
}
}
//Initialize the license object.
m_License = SampleLicense.CreateNewLicense(sampleLicensingGui);
//Now pass the initialized license object to the LicenseingGui component.
sampleLicensingGui.ApplicationLicense = m_License;
//Configure the LicensingGui component with the trigger code seed data (only applicable with writable/self-signed licenses).
sampleLicensingGui.TriggerCodeSeed = LicenseConfiguration.TriggerCodeSeed;
sampleLicensingGui.RegKey2Seed = LicenseConfiguration.RegKey2Seed;
//Wire-up event handlers for the LicensingGui component. Although this is typically done in the designer, this sample code intentionally
//initializes to a) make it easier for you to copy-and-paste; and b) prevent the sample functions referenced here from being deleted when
//the event handlers are changed in the designer.
sampleLicensingGui.LicenseManagementActionComplete += new EventHandler <LicenseManagementActionCompleteEventArgs>(PostProcessingUpdates);
sampleLicensingGui.ManualActionLoadRequested += new EventHandler <ManualActionLoadRequestedEventArgs>(ManualActionLoadRequested);
sampleLicensingGui.ManualActionSaveRequested += new EventHandler <ManualActionSaveRequestedEventArgs>(ManualActionSaveRequested);
sampleLicensingGui.SplashDoWork += new EventHandler <EventArgs>(InitializeApplicationSettings);
sampleLicensingGui.SplashWorkCompleteEvent += new EventHandler <EventArgs>(SplashWorkCompleted);
}
/// <summary>Revokes the license.</summary>
/// <remarks><para>This method is called from <see cref="PostProcessingUpdates"/>.</para></remarks>
/// <param name="lic">The <see cref="License"/> object being revoked.</param>
/// <param name="licGui">The <see cref="LicensingGui"/> which references the <see cref="License"/> object.</param>
internal static void RevokeLicense(ref SampleLicense lic, ref LicensingGui licGui)
{
//The license has been revoked, so remove it from the system.
lic.RemoveLicense();
//Create a new License to clear out any data (like the License ID and Installation ID) from memory.
lic = SampleLicense.CreateNewLicense(licGui);
//Now try to load the license file even though it doesn't exist. This helps ensure the correct error
//message is displayed in the license status entry if the license management form is opened again.
lic.LoadFile(LicenseConfiguration.LicenseFilePath);
//Update the reference to the License object in case the license management form is opened again.
licGui.ApplicationLicense = lic;
}
/// <summary>The method that performs the work, which is run asynchronously by the splash screen.</summary>
/// <param name="sender">The sender object.</param>
/// <param name="e">Event arguments</param>
/// <remarks><para>This method handles the <see cref="LicensingGui.SplashDoWork"/> event.</para></remarks>
private void InitializeApplicationSettings(object sender, EventArgs e)
{
//Load and initialize the license file.
m_LastLicenseValidationResult = m_License.InitializeLicense();
//If License is initialized properly, display status. If we created a fresh evaluation, clear the prior error generated from being unable to load an existing license file.
if (m_LastLicenseValidationResult && m_License.LastError.ErrorNumber == LicenseError.ERROR_COULD_NOT_LOAD_LICENSE)
{
m_License.LastError = new LicenseError(LicenseError.ERROR_NONE);
}
//this.criticalFeatureButton.Enabled = UpdateLicenseStatus();
if (m_Semaphore != null)
{
m_Semaphore.Close();
m_Semaphore = null;
}
if (!m_LastLicenseValidationResult && !(m_License.IsWritable) &&
m_License.ProductOption.OptionType == LicenseProductOption.ProductOptionType.DownloadableLicenseWithTriggerCodeValidation)
{
//The license is a downloadable license file, and is not supported since the application license is not a WritableLicense...
try
{
//Try to delete the downloadable file.
File.Delete(LicenseConfiguration.LicenseFilePath);
//Re-initialize the settings and the license objects so none of the information from the downloadable license carries over.
m_License = SampleLicense.CreateNewLicense(sampleLicensingGui);
sampleLicensingGui.ApplicationLicense = m_License;
//Try to load and initialize the license file again.
m_LastLicenseValidationResult = m_License.InitializeLicense();
}
catch (Exception ex)
{
statusLabel.Text = "Error: " + ex.Message;
}
}
m_LastLicenseValidationTime = DateTime.UtcNow;
}
/// <summary>The method that performs the work, which is run asynchronously by the splash screen.</summary>
/// <remarks><para>This method handles the <see cref="LicensingGui.SplashDoWork"/> event.</para></remarks>
/// <param name="sender">The sender object.</param>
/// <param name="e">Event arguments</param>
private void InitializeApplicationSettings(object sender, EventArgs e)
{
//Load and initialize the license file.
m_LastLicenseValidationResult = m_License.InitializeLicense();
//If we created a fresh evaluation, clear the prior error generated from being unable to load an existing license file.
if (m_LastLicenseValidationResult && m_License.LastError.ErrorNumber == LicenseError.ERROR_COULD_NOT_LOAD_LICENSE)
{
m_License.LastError = new LicenseError(LicenseError.ERROR_NONE);
}
if (!m_LastLicenseValidationResult &&
!(m_License.IsWritable) &&
m_License.ProductOption.OptionType == LicenseProductOption.ProductOptionType.DownloadableLicenseWithTriggerCodeValidation)
{
//The license is a downloadable license file, and is not supported since the application license is not a WritableLicense...
string licenseFilePath = (File.Exists(LicenseConfiguration.VolumeLicenseFilePath) ?
LicenseConfiguration.VolumeLicenseFilePath :
LicenseConfiguration.LicenseFilePath);
try
{
//Try to delete the downloadable file.
File.Delete(licenseFilePath);
//Re-initialize the settings and the license objects so none of the information from the downloadable license carries over.
m_License = SampleLicense.CreateNewLicense(sampleLicensingGui);
sampleLicensingGui.ApplicationLicense = m_License;
//Try to load and initialize the license file again.
m_LastLicenseValidationResult = m_License.InitializeLicense();
}
catch (Exception)
{
//We were unable to delete the downloadable license file.
}
}
m_LastLicenseValidationTime = DateTime.UtcNow;
//TODO: If your application has any of its own initialization logic, you can add it here so it runs while the
// splash screen is being displayed.
}
/// <summary>Updates the License's status in the <see cref="LicensingGui"/> and checks if network seats are available.</summary>
/// <returns>Returns true if the network seats are not depleted, false otherwise</returns>
private bool UpdateLicenseStatus()
{
SampleLicense license = SampleLicense.CreateNewLicense(sampleLicensingGui);
license.LoadFile(LicenseConfiguration.LicenseFilePath);
if (license.LicenseID != m_License.LicenseID || license.InstallationID != m_License.InstallationID)
{
sampleLicensingGui.ApplicationLicense = license;
m_License = license;
if (m_Semaphore != null)
{
m_Semaphore.Close();
m_Semaphore = null;
}
}
if (!m_LastLicenseValidationResult || m_License.LastError.ErrorNumber != LicenseError.ERROR_NONE)
{
statusLabel.Text = m_License.GenerateNetworkLicenseStatusString(m_LastLicenseValidationResult, m_Semaphore);
m_License.InitializeNetworkLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui, m_Semaphore);
//Check seats count and set the status, when No seats available and license re-activation completed with errors(No activation left or Invalid License ID and/or Password).
if (m_License.LastError.ErrorNumber == LicenseError.ERROR_WEBSERVICE_RETURNED_FAILURE && m_Semaphore == null)
{
m_Semaphore = new NetworkSemaphore(Path.GetDirectoryName(LicenseConfiguration.LicenseFilePath), LicenseConfiguration.NetworkSemaphorePrefix, m_License.LicenseCounter, true, 15, true);
if (!m_Semaphore.Open() && m_Semaphore.LastError.ErrorNumber == LicenseError.ERROR_NETWORK_LICENSE_FULL) // try to open a network session
{
statusLabel.Text = m_License.GenerateLicenseStatusString(m_LastLicenseValidationResult) + "No Seats Available.";
m_License.InitializeLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui);
sampleLicensingGui.LicenseStatusEntries.Add(new LicenseStatusEntry(LicenseStatusIcon.Information, "Network Seats", "No Seats Available"));
}
m_Semaphore = null;
}
return(false);
}
if (!m_License.Validate())
{
if (m_Semaphore != null)
{
m_Semaphore.Close(); // close our network session if it is open
m_Semaphore = null;
}
statusLabel.Text = "The license is invalid or expired";
m_License.InitializeNetworkLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui, m_Semaphore);
return(false);
}
else
{
if (m_Semaphore == null)
{
m_Semaphore = new NetworkSemaphore(Path.GetDirectoryName(LicenseConfiguration.LicenseFilePath), LicenseConfiguration.NetworkSemaphorePrefix, m_License.LicenseCounter, true, 15, true);
m_Semaphore.Invalid += new NetworkSemaphore.InvalidEventHandler(InvalidSemaphoreHandler);
if (!m_Semaphore.Open() && m_Semaphore.LastError.ErrorNumber == LicenseError.ERROR_NETWORK_LICENSE_FULL) // try to open a network session
{
using (NetworkLicenseSearchForm searchDialog = new NetworkLicenseSearchForm(m_Semaphore))
{
if (searchDialog.ShowDialog() != DialogResult.OK)
{
statusLabel.Text = m_License.GenerateLicenseStatusString(m_LastLicenseValidationResult) + "No Seats Available.";
m_License.InitializeLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui);
sampleLicensingGui.LicenseStatusEntries.Add(new LicenseStatusEntry(LicenseStatusIcon.Information, "Network Seats", "No Seats Available"));
m_Semaphore = null;
}
}
}
else if (m_Semaphore.LastError.ErrorNumber != LicenseError.ERROR_NONE)
{
statusLabel.Text = "Status: Unable to establish a network session. " + m_Semaphore.LastError;
statusLabel.Text += "\nUsers: N/A";
m_Semaphore = null;
}
else
{
statusLabel.Text = m_License.GenerateNetworkLicenseStatusString(m_LastLicenseValidationResult, m_Semaphore);
m_License.InitializeNetworkLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui, m_Semaphore);
}
return(false);
}
if (m_Semaphore != null && m_Semaphore.IsValid)
{
statusLabel.Text = m_License.GenerateNetworkLicenseStatusString(m_LastLicenseValidationResult, m_Semaphore);
m_License.InitializeNetworkLicenseStatusEntries(m_LastLicenseValidationResult, sampleLicensingGui, m_Semaphore);
}
return(true);
}
}