Ensure your key matches the product. A "File Formats" key won't unlock "Essential JS 2" UI controls. Summary Checklist
In your Program.cs file, add the registration call before builder.Build(); . syncfusion trial license key fix
Troubleshooting the Syncfusion "Trial License Key" Message: A Complete Fix Guide Ensure your key matches the product
If using the Community License, is your account still eligible and the key refreshed for the current year? add the registration call before builder.Build()
The license type (e.g., File Formats vs. Essential JS 2) is mismatched. Step 1: Generate the Correct License Key
Sometimes you apply the code fix, but the trial warning remains. This is often due to cached build artifacts.
By following these steps, you should eliminate the trial watermark and ensure your application runs smoothly in production.