Register the license key in the OnCreate override method of your main activity class before initializing any Syncfusion control.
using Syncfusion.Licensing; var builder = WebApplication.CreateBuilder(args); // Register your Syncfusion unlock key SyncfusionLicenseProvider.RegisterLicense("YOUR_KEY_HERE"); var app = builder.Build(); Use code with caution. ASP.NET Core (MVC / Razor Pages) In Program.cs :
If you are on an active subscription or the Community License program, your keys roll over with major version updates. Plan to generate and swap out your keys whenever you upgrade your package dependencies.
You applied the unlock key but did not regenerate the runtime license file for your project. Or, you have a leftover SyncfusionLicense.txt from the trial. Fix: Delete any existing license files from your project. Reopen the Syncfusion License Manager, re-enter your unlock key, and generate a fresh license file. Rebuild the solution.
To remove the evaluation watermark, you must register the license key programmatically within your application's entry point before invoking any Syncfusion components. 1. Blazor Applications syncfusion unlock key
Clean your solution, delete the bin and obj folders, restore your packages, and rebuild the application. Best Practices for Managing Syncfusion Keys
Navigate to the and log into your account.
import registerLicense from '@syncfusion/ej2-base'; // Register Syncfusion license registerLicense('YOUR_ACTUAL_UNLOCK_KEY_HERE'); Use code with caution. Troubleshooting Common Licensing Errors
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Register the license key in the OnCreate override
Old build files or cached browser assets are serving a previous build without the key.
In conclusion, a Syncfusion unlock key is essential for accessing the full range of features and capabilities offered by Syncfusion products. By understanding the importance of unlock keys and following best practices for management, you can ensure compliance with licensing terms, access technical support, and develop high-performance applications with confidence.
"This application was built using a trial version of Syncfusion Essential Studio"
If you use the npx syncfusion-license activate command with an invalid license key structure, a console error message will appear indicating the issue. Plan to generate and swap out your keys
: This is a version-specific and platform-specific string (e.g., for ASP.NET Core, Flutter, or React) that you register directly in your code. It ensures that when your application runs, it doesn’t display a "Trial Version" warning. How to Get and Use Your Key
Choose the exact version of Essential Studio you are currently using in your project.
, as long as you are the same developer. A single developer license allows you to install and unlock Syncfusion on up to three machines (e.g., desktop, laptop, home PC).