public static void Main(string[] args)
This article explains the purpose, syntax, proper usage, and common pitfalls of licenseinfo.setlicensekey , along with best practices for secure license management. licenseinfo.setlicensekey is a static method that assigns a license key to a library’s licensing subsystem at runtime. It is typically called early in the application lifecycle (e.g., in Program.cs or Application_Start ) to unlock all components that depend on that license. Typical Signatures Different vendors implement this similarly, but common signatures include:
Ensure the method is called before the first licensed control is created. Verify the key string (no extra spaces, correct encoding). 2. LicenseExpiredException Cause: The license key has passed its expiration date (common for annual subscriptions). licenseinfo.setlicensekey
// Set license key as early as possible LicenseInfo.SetLicenseKey("YOUR_LICENSE_KEY_HERE");
[STAThread] static void Main()
CreateHostBuilder(args).Build().Run();
| Vendor | Namespace | Additional Requirements | |--------|-----------|--------------------------| | Telerik | Telerik.Licensing | Must call before any Telerik control is instantiated. | | DevExpress | DevExpress.Data | Also requires adding a license file for design-time. | | Syncfusion | Syncfusion.Licensing | Use SyncfusionLicenseProvider.RegisterLicense() instead. | | GrapeCity (ComponentOne) | C1.Licensing | Use C1License.SetLicenseKey() . | public static void Main(string[] args) This article explains
throw new InvalidOperationException("License key not found in environment.");