Devextreme License Key -

A: No. The validation is entirely offline. The LicenseManager performs a local cryptographic check. No network call is made, so your app works in air-gapped environments.

import './license'; import App from './App'; If you use DevExtreme with DevExpress ASP.NET Core wrappers, you must register the key in Startup.cs or Program.cs . devextreme license key

Then import this file any DevExtreme component is imported. import App from './App'