Scheduler .NET is distributed under Commercial and Enterprise Licenses. Once you buy a license, you get the license key (over email) that you need to use to activate the library.
Please, don't mix up the license key with the license number. These are different things.
To activate the scheduler you need the license key. In the confirmation letter the key looks like this:
user@email.com-enterprise--Inu2Bt4hIeyQivFGqpf4HF4y3UqmgYTKLvOGhnta1PQYN2kF0rs4V0jXZh1lCMMeYzRU=
The key is applied in the app settings of the web.config file as shown below:
//web.config
<configuration>
<appSettings>
<add key="dhx_license" value="putYourLicenseKeyHere"/>
</appSettings>
</configuration>
As the value of the dhx_license key you should specify your license key.
Note,
If the dhx_license key has the empty value or isn't added to the web.config, Scheduler .NET will work in the trial mode (fully functional within 30 days of the build date).
If you specify an invalid key or the trial period has passed, Scheduler .NET will throw an exception, once an instance of DHXScheduler is created.
If the license key does not pass the validation, the component throws an exception. The exception message usually contains the error description:
If the problem can't be solved, feel free to contact DHTMLX support team at http://support.dhtmlx.com/ or notify us via email.