关于dxdbgrid的问题

for i:=0 to frmfbxszfpzxxcx.dxdbgrid2.ColumnCount-1 do
    frmfbxszfpzxxcx.dxDBGrid2.Columns[i].Width:=60;
    if  frmfbxszfpzxxcx.dxDBGrid2.Columns[i].Caption='实收数量' then
    begin
    frmfbxszfpzxxcx.Label3.Caption:=frmfbxszfpzxxcx.dxDBGrid2.Columns[i].SummaryFooterText;
    end;