Hi Clement,
Error in definition of SerieType:Many new features for chart has been added only from version 4.2. So please upgrade to our latest version. You can download our latest version from the below link:
http://www.syncfusion.com/downloads/latestversion/default.aspxHere is the sample for your reference to create series with different chart types:
http://websamples.syncfusion.com/samples/XlsIO.Windows/71055/main.htmPlease let me know if you have any other queries.
Regards,
Yavana.G