if e.datarow("造林类别") = "退耕" Then e.datarow(e.datacol.name) = e.datarow("设计面积") else e.datarow(e.datacol.name) = nothing end if
if e.datarow("造林类别") = "退耕" and e.datarow("林种") = "生态林" Then e.datarow(e.datacol.name) = e.datarow("设计面积") else e.datarow(e.datacol.name) = nothing end if