Hi Marcel,
Thanks for using Syncfusion Products.
Yes. We can create custom cell types using standard silverlight controls in the silverlight grid and you can achieve this in two ways.
First one is by creating a DataTemplate and the second one is by creating a Render class for the control.
We have also prepared a sample for this by using DataTemplate for a ProgressBar and render class for a Button.
Please find the sample under the following location.
Sample :
http://www.syncfusion.com/uploads/redirect.aspx?file=ProgressbarButton_f7f6b57.rar&team=testingftpPlease let us know if this helps.
Regards,
Ramesh.V