取得鼠标选取的单元格值

For cxGrid:
varName:=cxgridTV1.DataController.GetValue(cxgridTV1.DataController.FocusedRecordIndex, cxgridTV1.Controller.FocusedItemIndex);

For dbgridEH:
varName:=dbgridEH1.Fields[dbgridEH1.SelectedIndex].DisplayText;