主题：为何老是报错

 With wb.AddInputGroup("form1","ipg2",iif(IsNew,"新增明细","编辑明细"))

        .Attribute = "" '调用js函数,自动计算金额

        If IsNew Then '如果是新增订单明细

            With  .AddSelect("产品编码","产品编码","").Attribute(""")

                

            End With                        

Dim e As RequestEventArgs = args(0)

Dim wb As New weui

'删除订单明细

If e.GetValues.ContainsKey("deldid") Then

    DataTables("销售明细").SQLDeleteFor("[_Identify] = " & e.GetValues("deldid"))

End If

'订单编辑

Dim pr As DataRow '订单

Dim srs As List(of DataRow) '订单明细集合

Dim Page As Integer '页码变量

If e.GetValues.ContainsKey("page") Then  '如果地址中有page参数

    Integer.TryParse(e.GetValues("page"), page) '提取page参数

End If

If e.GetValues.ContainsKey("oid") = False Then '如果没有传递订单编号,则新增与一个订单

    pr = DataTables("销售单").SQLAddNew() '

    pr("销售单号") = Functions.Execute("GetOrderID") '利用自定义函数GetOrderID为新增订单生成编号.

    pr("制单时间") = Date.now

Else '如果传递了订单编号,则找出此订单进行编辑

    pr = DataTables("销售单").SQLFind("销售单号='" & e.GetValues("oid") & "'")

    If pr Is Nothing Then '多用户情况下,必须考虑其他用户删除订单的可能.

        wb.InSertHtml("此订单已被其他用户删除!")

        e.WriteString(wb.Build)

        Return ""  '必须返回

    End If

    srs =  DataTables("销售明细").SQLSelect("销售单号='" & pr("销售单号")  & "'") '获取订单明细

End If

Dim url As String = "edit.htm?page=" & page &  "&oid=" & pr("销售单号")  '传递页码和订单编号

wb.AddForm("","form1",url)

With wb.AddInputGroup("form1","ipg1",iif(e.GetValues.ContainsKey("oid"),"编辑订单","新增订单"))

    With .AddInput("销售单号","销售单号","text")

        .Value = pr("销售单号")

        .Readonly = True

    End With

    .AddInput("所属业务员","所属业务员","text").Value = pr("所属业务员")

    .AddInput("部门","部门","text").Value = pr("部门")

    .AddInput("客户编号","客户编号","text").Value = pr("客户编号")

    .AddInput("客户名称","客户名称","text").Value = pr("客户名称")

    .AddInput("联系人","联系人","text").Value = pr("联系人")

    .AddInput("电话","电话","text").Value = pr("电话")

    .AddInput("已折扣金额","已折扣金额","number").Value = pr("已折扣金额")

    .AddInput("优惠金额","优惠金额","number").Value = pr("优惠金额")

    .AddInput("应收金额","应收金额","number").Value = pr("应收金额")

    .AddInput("现金","现金","number").Value = pr("现金")

    .AddInput("转账金额","转账金额","number").Value = pr("转账金额")

    .AddInput("实收金额","实收金额","number").Value = pr("实收金额")

    .AddInput("未收金额","未收金额","number").Value = pr("未收金额")

    .AddInput("销售日期","销售日期","date").Value = pr("销售日期")

    .AddInput("送货方式","送货方式","number").Value = pr("送货方式")

    .AddInput("运费","运费","number").Value = pr("运费")

    .AddInput("备注","备注","text").Value = pr("备注")

   End With

'订单明细编辑

Dim mr As DataRow '要编辑的订单明细

Dim IsNew As Boolean '此变量用于标记是否要新增明细

If e.GetValues.ContainsKey("oid") = False OrElse e.GetValues.ContainsKey("addnext") '如果是新增订单,或这包括addnext参数

    IsNew = True '将IsNew参数设置为True,表明需要新增订单明细

ElseIf e.GetValues.ContainsKey("did") Then '如果传递了订单明细主键

    mr = DataTables("销售明细").SQLFind("[_Identify]=" & e.GetValues("did")) '找出此订单明细进行编辑

End If

If IsNew OrElse mr IsNot Nothing  Then

    With wb.AddInputGroup("form1","ipg2",iif(IsNew,"新增明细","编辑明细"))

        .Attribute = "" '调用js函数,自动计算金额

        If IsNew Then '如果是新增订单明细

            With  .AddInput("药材编码","药材编码","text").Attribute("")                

            End With

            .AddInput("名称","名称","text")

            .AddInput("数量","数量","number")

            .AddInput("零售价","零售价","number")

            .AddInput("零售金额","零售金额","number")

        Else

            .AddHiddenValue("DetailID",mr("_Identify")) '插入一个隐藏的订单明细主键,此值将随表单数据一并提交到服务器.

            .AddInput("药材编码","药材编码","text")

            .AddInput("名称","名称","text").Value = mr("名称")

            With  .AddInput("数量","数量","number")

                .Step= "0.01"

                .value = mr("数量")

            End With

            With .AddInput("零售价","零售价","number")

                .Step= "0.01"

                .value = mr("零售价")

            End With

            .AddInput("零售金额","零售金额","number").value = mr("零售金额") '后台没有金额列,要通过数量和零售价计算得出

        End If

    End With

End If

'生成订单明细表格

If e.GetValues.ContainsKey("oid") AndAlso  srs.count > 0 Then '如果不是新增订单,且订单明细行数大于0,则生成订单明细表格.

    With wb.AddTable("form1","detailTable") '为了区分,明细表的名字设为detailTable

        .head.AddRow("药材编码","名称","数量","零售价","零售金额")

        .ActiveSheet = "menu" '指定菜单

        For Each sr As DataRow In srs

            With .Body.AddRow(sr("药材编码"),sr("名称"),sr("数量"),sr("零售价"),sr("零售金额"))

                ''.AddCell(sr("数量") * sr("零售价"))

                .Primarykey = sr("_Identify") '为此行指定主键值

            End With

        Next

        Dim amt As Double

        amt = DataTables("销售明细").sqlcompute("sum(零售金额)","销售单号='" & e.GetValues("oid") & "'")

        With .Body.AddRow()

            .Attribute = "style='background-color:#F0FFFF'"

            .AddCell("合计: ","colspan='3'")

            .AddCells("",amt)

            

        End With

        

    End With

    '设计菜单

    With wb.AddActionSheet("","menu")

        .Add("mnudAdd", "增加明细").Attribute="" '调用js函数

        .Add("mnuEdit", "编辑明细").Attribute =""

        .Add("mnuDelete", "删除明细").Attribute ="""

        .Add("mnuCancel","取消","",True)

    End With

End If

With wb.AddDialog("","dlg1", "删除确认","您确定要删除当前明细吗?")

    .AddButton("btnCancel","取消").Kind = 1

    .AddButton("btnOK","确定").Attribute = ""

End With

With wb.AddButtonGroup("form1","btg1",False)

    .Add("btn1", "增加明细", "submit").FormAction = url & "&addnext=true" '加上addnext参数,表示保存后进入增加明细状态

    .Add("btn2", "保存", "submit") '正常提交,保存后进入编辑状态

    If  e.GetValues.ContainsKey("oid") = False Then '如过是新增订单

        .Add("btn3", "取消", "button","list.htm?page=" & page & "&deloid=" & pr("销售单号")) '删除新增订单后返回列表

    ElseIf IsNew OrElse mr IsNot Nothing  Then '如果在给旧订单新增或修改明细,则直接返回编辑状态

        .Add("btn3", "取消", "button",url) '返回编辑状态

    Else

        .Add("btn3", "返回", "button","list.htm?page=" & page) '返回列表

    End If

End With

pr.Save() '必须保存,而且必须在最后保存,因为SQLAddNew增加的行,保存之后就会销毁,无法再调用

If e.PostValues.Count > 0 Then '如果是通过提交按钮访问,则给一个已经保存的提示给用户,时长500毫秒

    wb.AddToast("","t1", "已经保存",0).Msec= 500

End If

wb.AppendHTML("<script src='./lib/order.js'></script>") '引入脚本文件

e.WriteString(wb.Build) '生成网页

 With  .Addselect("药材编码","药材编码","").Attribute("")   

''.Addinpu("药材编码","药材编码","text").Attribute("")                 

            End With

            .AddInput("名称","名称","text")

            .AddInput("数量","数量","number")

            .AddInput("零售价","零售价","number")

            .AddInput("零售金额","零售金额","number")

end with

我想实现的效果是点开药材编码 打开一个商品查询页面 查好以后再返回来