Navigate to https://www.syncfusion.com and click on “Sign In” at the top right corner. Use your registered email and password.
You typically update the license key in the Program.cs or Startup.cs file.
Step 1: Open your project in Visual Studio.
Step 2: Locate the Program.cs file.
Step 3: Before any Syncfusion component is used (usually at the very top of the Main method or after the builder creation), add the following line: syncfusion generate license key upd
using Syncfusion.Licensing;
// Place this line right after builder = WebApplication.CreateBuilder(args); SyncfusionLicenseProvider.RegisterLicense("YOUR_NEW_LICENSE_KEY_FROM_ACCOUNT");
Step 4: Replace the placeholder with the new key you generated. Save the file.
You should generate and update your license key when: Navigate to https://www
Message: “Syncfusion license key not found. Please register the license key in your application.”
Cause: You forgot to call RegisterLicense() or the key is incorrect. Step 4: Replace the placeholder with the new
Solution: Double-check that you copied the entire key (no missing characters). Ensure the registration line executes before any Syncfusion control is instantiated.
After updating, you can programmatically verify the license status:
if (SyncfusionLicenseProvider.ValidateLicense(LicenseKey))
Console.WriteLine("License is valid and up to date.");
else
Console.WriteLine("License validation failed. Check your key.");