主题：英文转数字代码问题

Dim cmd As New SQLCommand

Dim dt As DataTable

Dim dt1 As DataTable

Dim dt2 As DataTable

Dim dt3 As DataTable

cmd.C

cmd.CommandText = "SELECT * Fr om {面料订单明细}"

dt = cmd.ExecuteReader(True)

cmd.CommandText = "SELECT * F rom {颜色对照表}"

dt1 = cmd.ExecuteReader(True)

cmd.CommandText = "SELECT * Fr om {英文数字对照表}"

dt2 = cmd.ExecuteReader(True)

cmd.CommandText = "SELECT * Fr om {面料信息}"

dt3 = cmd.ExecuteReader(True)

Dim dlg As New OpenFileDialog '定义一个新的OpenFileDialog 

dlg.Filter = "Excel文件|*.xlsx|Excel文件|*.xls" '设置筛选器

If dlg.ShowDialog = DialogResult.Ok Then '如果用户单击了确定按钮

    Dim Book As New XLS.Book(dlg.FileName)

    Dim Sheet As XLS.Sheet = Book.Sheets(0)

    Dim dtb As New DataTableBuilder("订单")

    For n As Integer = 0 To Sheet.cols.Count - 1

        If Sheet(0, n).Value <> "" Then

            dtb.AddDef(Sheet(0, n).Value, GetType(String), 255)

        End If

    Next

    dtb.Build()

    Dim tb As Table = Tables("订单")

    For n As Integer = 1 To Sheet.Rows.Count - 1

        Dim r As Row = tb.AddNew()

        For m As Integer = 0 To tb.cols.Count - 1

            r(tb.Cols(m).Name) = Sheet(n, m).Value

        Next

        Tables("订单").ResumeRedraw()

    Next

    Dim Vals As List(Of String())

    Vals = DataTables("订单").GetValues("物料色号|物料色名", "", "物料色号")

    For i As Integer = 0 To Vals.Count - 1

        Dim sgdr As DataRow

        sgdr = dt1.Find("色号 = '" & Vals(i)(0) & "' And 颜色 = '" & Vals(i)(1) & "'")

        If sgdr IsNot Nothing Then

            e.Cancel = True

        Else

            Dim shm As String = Vals(i)(0)

            Dim ysm As String = Vals(i)(1)

            Dim tst As String

            Dim zm As String

            If Char.IsLetter(shm(0)) Then

                zm = "1"

            Else

                zm = "0" 

            End If 

            Dim s2 As String

            Dim s3 As String

            For i1 As Integer = 0 To Len(shm) - 1

                Dim sdr As DataRow

                If Char.IsLetter(shm(i1)) = True Or Char.IsDigit(shm(i1)) = True Then 

                    If Char.IsLetter(shm(i1)) Then

                        sdr = dt2.Find("[英文字母] = '" & shm(i1) & "'")

                        s3 = sdr("代码")

                    Else

                        s3 = shm(i1)

                    End If

                End If

                s2 = s2 & s3

            Next

            Dim zz As String 

            If Len(s2) < 7 Then

                zz = zm & s2.PadLeft(7, "0")

            ElseIf Len(s2) > 7 Then

                zz = zm & s2.Remove(2, Len(s2) - 7)

            End If 

            Dim max As String

            Dim idx As Integer

            max = dt1.Compute("Max(代码)", "色号 = '" & shm & "' And 颜色 = '" & ysm & "' And Len(代码) = 10")

            If max > "" Then '如果存在最大编号

                idx = CInt(max) + 1 '获得最大编号的后三位顺序号,并加1

            Else

                idx = 1 '否则顺序号等于1

            End If

            Dim dr As DataRow = dt1.AddNew()

            dr("色号") = Vals(i)(0)

            dr("颜色") = Vals(i)(1)

            dr("代码") = zz & Format(idx, "00")

        End If

    Next

    Dim Cols1() As String = {"物料编号", "物料色号", "品牌", "大货款号", "明细件数", "合计数量/kg", "要求成品截止时间", "实际大货毛衣工厂", "面料收货地址" }

    Dim Cols2() As String = {"客户编号", "色号", "品牌", "款号", "件数", "数量", "交货日期", "交货单位", "备注" }

    For Each dr1 As DataRow In DataTables("订单").DataRows

        Dim Filter As String = "[客户编号] = '" & dr1("物料编号").Trim(" ", "-") & "' And [色号] = '" & dr1("物料色号") & "' And [款号] = '" & dr1("大货款号") & "' And [数量] = '" & dr1("合计数量/kg") & "' And [交货日期] = '" & dr1("要求成品截止时间") & "'"

        Dim fzdr As DataRow

        fzdr = dt.Find(Filter)

        If fzdr IsNot Nothing Then

            e.Cancel = True

        Else

            Dim dr2 As DataRow = dt.AddNew()

            For i As Integer = 0 To Cols1.Length - 1

                If dr1("物料编号").Contains("-") = True Then

                    dr2("客户编号") = dr1("物料编号").Trim(" ", "-")

                    Dim mdr As DataRow

                    mdr = dt3.Find("[客户编号] = '" & dr2("客户编号") & "'")

                    dr2("面料名称") = mdr("面料名称")

                    dr2("面料门幅") = mdr("门幅")

                    dr2("面料克重") = mdr("克重")

                    If dr2("色号") <> "" Then

                        Dim ydr As DataRow

                        ydr = dt1.Find("[色号] = '" & dr2("色号") & "'")

                        dr2("颜色") = ydr("颜色")

                        dr2("面料识别号") = mdr("面料编号") & ydr("代码")

                    End If

                End If

                dr2(Cols2(i)) = dr1(Cols1(i))

            Next

        End If

    Next

End If

If dt1.HasChanges Then

    dt1.save()

    dt1.Load

End If

If dt.HasChanges Then

    dt.save()

    dt.Load

    DataTables("窗口3_Table1").Load

End If