有个奇怪的错误，请帮忙分析分析 - 专家坐堂 - Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

table1是明细表，table2是入库表

beforeclose代码：

If DataTables("StockInN_Table2").HasChanges Or DataTables("StockInN_Table1").HasChanges Then

Dim rst As Dialogresult

rst = MessageBox.show("入库单未入库,是否直接退出? 如果要保存请按【确认入库】按钮","提示",MessageBoxButtons.YesNo,MessageBoxIcon.Question)

Se/ect Case rst

Case DialogResult.no

e.cancel = True

End Se/ect

End If

确认入库按钮（add1），click事件：

Dim tb1 As Table = Tables("StockInN_Table1")

Dim tb2 As Table = Tables("StockInN_Table2")

DataTables("StockInN_Table2").save()

If DataTables("StockInN_Table2").HasChanges = True Then

Return

Else

DataTables("StockInN_Table1").save()

If DataTables("StockInN_Table1").HasChanges = True Then

Return

End If

End If '先保存,如果不能保存就不继续

Dim sql As new SQLCommand

Dim lsb As DataTable

sql.C

sql.CommandText = "se/ect * fr om {产品库存信息} where 1 = 0"

lsb = sql.ExecuteReader(True) '生成临时表,设成True,库存信息可以保存

Dim ck As String = tb2.Rows(0)("仓库编号")

Dim gys As String = tb2.Rows(0)("供应商编号")

Dim bh As String = tb2.Rows(0)("对应编号")

Dim hs As Integer = tb1.Rows.Count

For i As Integer = 0 To hs -1

Dim hh As String = tb1.Rows(i)("基础货号")

Dim gj As String = tb1.Rows(i)("产地国家码")

Dim kcm As String = hh & gj & gys & ck '生成产品库存码,基础货号+国家码+供应商码+仓库码

Dim h As DataRow

h = lsb.SQLFind("产品库存码 = '" & kcm & "'")

If h IsNot Nothing Then

h("当前库存数量") = h("当前库存数量") + tb1.Rows(i)("数量")

h.save()

Else

Dim xh As DataRow

xh = lsb.AddNew()

xh("产品库存码") = kcm

xh("基础货号") = hh

xh("产品基本名称") = tb1.Rows(i)("产品基本名称")

xh("原产地国") = tb1.Rows(i)("原产地国")

xh("产地国家码") = gj

xh("供应商名称") = tb2.Rows(0)("供应商名称")

xh("供应商编号") = gys

xh("仓库名称") = tb2.Rows(0)("入库仓库")

xh("仓库编号") = ck

xh("当前库存数量") = tb1.Rows(i)("数量")

End If

lsb.save()

If ancs = "cgrk" Then ‘这是全局变量，判断入库类型，会有不同的设置，也很奇怪，只有这个类型会出现我说的错误，其他类型就不出现。但是注释掉这整段还是一样会出现弹窗。

Dim sql3 As new SQLCommand

sql3.C

sql3.CommandText = "up d ate {采购下单表} se t 采购单状态 = '已入库' w here 采购编号 = '" & bh & "'"

sql3.ExecuteNonQuery '添加之后便到采购下单表标注一下单子已成功

End If

e.Form.Controls("ad").Enabled = False

e.Form.Controls("del").Enabled = False

e.Form.Controls("beiz").Enabled = False

e.Form.Controls("dybh").Enabled = False

e.Form.Controls("rkck").Enabled = False

e.Form.Controls("gys").Enabled = False

e.Form.Controls("add1").Enabled = False ‘只要把这条注释掉就没弹窗了

e.Form.Controls("add").Enabled = True

e.Form.Controls("bq").Enabled = True

For Each l As Col In tb1.Cols

MessageBox.show(tb1.Current(l.Name))

主题：有个奇怪的错误，请帮忙分析分析