Hello Martin,

Do you want to get the selected rows cell values from the client-side or server-side?

Could you please provide a working sample demonstrating your issue?

I am looking forward to hearing from you.

Please take a look at this forum thread - https://ko.infragistics.com/community/forums/f/ultimate-ui-for-asp-net/47884/get-selected-child-rows. My colleague provided a sample which demonstrates what you are trying to do.

Please contact me if you need further assistance.

For definition of RowIslands, please have a look at this thread - https://ko.infragistics.com/community/forums/f/ultimate-ui-for-asp-net/46258/bands-and-rowislands-definition-needed.

Let me know if you need further assistance.