主题：从tbl选择多行插入tbl2，提示应为标示符

Dim tbl As Table = Tables("选择物料需求_Table1")
Dim tbl2 As Table = Tables("下采购订单_Table2")

For  i As Integer=tbl.BottomPosition To tbl.TopPosition Step -1
    Dim dr As Row =  tbl2.AddNew
    dr("物供号")=tbl.Rows(i)("物供号")
    dr("款号")=tbl.Rows(i)("款号")
Next

Forms("选择物料需求").Close()