Hi Patrik,
Thanks for contacting Syncfusion Support.
You can get the source code of the sample in the SampleBrowser samples.
Please refer the below screenshot, to get the sample code.
Click the highlighted icon in the first screenshot, you will be navigated to the sample code pages, click on the highlighted tab at the bottom of the sample as in the second screenshot to navigate to the next sample code page.
Regards,
Suhasini