Hi Jan,
Thank you for your interest in Syncfusion products.
The named range will add the value what ever the second parameter provides. As analyzed in the example, the text of the cell is moved as the value for the named range collection, the text will contains only the formula and when it is specified in the second grid, the formula will be applied to the grid and the d5 and f5 values will be retrieved from the current grid which is empty. This is the reason for the value returned as zero. If you need to add the value to the named range instead of the formula, then try to add through the FormattedText property which returns the calculated value instead of formula.
Please refer the modified sample attached below:
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=WindowsFormsApplication1-1186291608.zipLet me know if you have any queries.
Regards,
Nirmal