Hi Brandon,
Thank you for your interest in Syncfusion products.
I have implemented the Drag and Drop functionality within the grouped range (colored block). The saveCellInfo event is handled for saving the dropped items to data source. The formula cells in last 2 columns are applied. The grouped range has been defined from a range named ‘OverallRange’. GetCells() and SetCells() methods are used to get/set the targeted range styles.
Here is the sample:
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=GC_Grouping_DnD-2069406637.zipKindly let me know if you are facing the issue still.
Regards,
Christo.