void reorderColumn()
{
	Worksheet wks = Project.ActiveLayer();  // the active worksheet
	if(!wks)
		return;
	
	Column col = wks.Columns(0);  // the first column in the worksheet
	vector& vecCol = col.GetDataObject();  // get the data of first column
	vector<uint> vecReverseIndice(vecCol.GetSize());  // for the reverse indice
	vecReverseIndice.Data(vecReverseIndice.GetSize() - 1, 0, -1);
	
	vecCol.Reorder(vecReverseIndice);  // reverse the column
	wks.GetPage().Refresh();  // refresh the workbook
}