Hi Rahul,
If you wan to change the datasource for the specific cell based on some condition then handle the CurrentCellShowingDropDown event to place your new datatable directly into the GridComboBoxCellRenderer.ListBoxPart. This will affect the dropped cell datasource. Please refer to the attached sample for implementation and let me know if this helps.
Sample :
ComboxDatasource.zipAlso refer the below KBs for more information.
http://www.syncfusion.com/Support/article.aspx?id=567http://www.syncfusion.com/support/kb/grid/Default.aspx?ToDo=view&questId=115&catId=12Best regards,
Haneef