If you’ve integrated Syncfusion controls into your application, nothing breaks your flow quite like a popup or console warning shouting: "This application was built using a trial version of Syncfusion Essential Studio."
var builder = WebAssemblyHostBuilder.CreateDefault(args); // Register Syncfusion license Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR_TRIAL_KEY_HERE"); await builder.Build().RunAsync(); Use code with caution. ASP.NET Core MVC / Web API
Will the application stop working if the trial license expires? syncfusion trial license key fix
Upgrading to a new major version of Syncfusion (e.g., from v30 to v31) always requires a new license key. The old key will be considered invalid. Always generate a fresh key for the new major version and update it in your code.
Before you can register a key, you need one. If you don't already have a license, follow these simple steps: The old key will be considered invalid
using Microsoft.AspNetCore.Components.Web; // ... other imports var builder = WebApplication.CreateBuilder(args); // Register your Syncfusion license key here Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR_ACTUAL_LICENSE_KEY_HERE"); var app = builder.Build(); Use code with caution.
In Flutter applications, call the registration method inside the main() function before running the app. If you don't already have a license, follow
Which are you developing on (e.g., Blazor, Angular, .NET MAUI)? What Syncfusion version number are you currently using?
Rebuild the solution to force the application to recognize the updated license registration. Licensing FAQ – Get the license key - Help.Syncfusion.com
"We suspect that there is a version mismatch in the Syncfusion assemblies/NuGet packages while upgrading to v29.1.33. Please ensure that all the referenced Syncfusion NuGet packages/assemblies in your project are on the same version (v29.1.33) as the license key."