您好我需要导入电子表格 - 验证数据并保存到数据库。
电子表格数据来自两个来源。一个可以直接导入(这个我没问题)。在将数据保存到数据库之前,必须对来自第二个来源的电子表格中的数据进行处理。
我创建了一个网页,它上传 xls 文件,然后导入数据表。然后数据表是网格视图的数据源。然后我进行验证并保存到数据库。
此代码适用于标准电子表格。我现在需要修改代码,以便它可以处理任何一种类型的源电子表格。
示例数据标准源
Unique ID Ref PartName New_SH Year ProductType Location Qty TopSeller
39564 SD9PP/SS Micra Water Pump N 2012 Cooling CD19 12 Y
需要操纵的来源
Unique ID Ref PartName New_SH Year ProductType Location Qty TopSeller
IS-4564 XM3M_ZZ_001_001_1982 180 wiper motor S Wiper Motor CD19 3 N
在上面的示例中,需要对 Ref 进行操作,以便将最后 4 位数字传输到 YEAR 列,并且修剪 Ref 的第一部分直到第二个下划线,并将下划线替换为 / 例如 XM3M/ZZ。引用可以是从 4+2suffix 到 6+2suffix 的任何内容,但后面总是跟着 _XXX_XXX_YYYY,其中 X 和 Y 是数字 X 不是必需的,YYYY 是年份。
我的计划是将电子表格导入临时数据表,然后逐行逐个单元格地浏览该表,并在进行任何必要的更改后复制到另一个数据表。然后将第二个表用作 gridview 的数据源。
这是我的代码...
Protected Sub ReadExcelFile(filename As String, worksheet As String)
Try
' Fetch Data from Excel data is based on the following
'Unique ID Ref PartName New_SH Year ProductType Location Qty TopSeller
'IS-4564 XM3M_ZZ_001_001_1982 180 wiper motor S Wiper Motor CD19 3 N
'35667 SD9PP/SS Micra water pump N 2012 Cooling CA4 14 Y
Dim MyConnection As New OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; data source='" & filename & "'; Extended Properties='Excel 8.0; HDR=Yes; IMEX=1'")
Dim MyCommand As New OleDbDataAdapter("select * from [" & worksheet & "]", MyConnection)
Dim dtPreview As New DataTable()
Dim dtTemp As New DataTable()
'Place data in temp datatable
MyCommand.Fill(dtTemp)
'Go through tem[ datatable and transfer cell values to dtPreview
If dtTemp.Columns.Count < 9 Then
'We do not have enough columns
lb_Error.Text = "Spreadsheet does not contain enough columns
Exit Sub
Else
'We have at least 9 columns - we are only interested in the first 9
If dtTemp.Rows.Count > 0 Then
'we have at least one row
'Add Column Headers
For c = 0 To dtTemp.Columns.Count - 1
dtPreview.Columns.Add(dtTemp.Columns(c).ColumnName, dtTemp.Columns(c).DataType)
Next
'Add Row Data
Dim l As Integer = 0
For Each drTempRow As DataRow In dtTemp.Rows
Dim newRow As DataRow = dtPreview.NewRow()
'Unique ID
If Left(dtTemp.Rows(0).ToString, 3) = "IS-" Then
newRow(0) = Mid(dtTemp.Columns(0).ToString.ToUpper.Trim, 4, 8)
Else
newRow(0) = dtTemp.Columns(0).ToString.ToUpper.Trim
End If
'Ref
If Left(dtTemp.Rows(0).ToString, 3) = "IS-" Then
l = Len(dtTemp.Columns(1).ToString.Trim)
newRow(1) = Left(dtTemp.Columns(1).ToString.Replace("_", "/").ToUpper.Trim, l - 13)
Else
newRow(1) = dtTemp.Columns(1).ToString.ToUpper.Trim
End If
'Part Name
newRow(2) = dtTemp.Columns(2).ToString.ToUpper.Trim
'New / Secondhand
newRow(3) = dtTemp.Columns(3).ToString.ToUpper.Trim
'Year
If Left(dtTemp.Columns(0).ToString, 3) = "IS-" Then
newRow(4) = Right(dtTemp.Columns(0).ToString, 4)
Else
newRow(4) = dtTemp.Columns(4).ToString
End If
'Product Type
newRow(5) = dtTemp.Columns(5).ToString.ToUpper.Trim
'Location
newRow(6) = dtTemp.Columns(6).ToString.ToUpper.Trim
'Quantity in Stock
newRow(7) = dtTemp.Columns(7).ToString
'Top Seller
newRow(8) = dtTemp.Columns(8).ToString.ToUpper.Trim
dtPreview.Rows.Add(newRow)
newRow = Nothing
Next
End If
'Add additional columns
dtPreview.Columns.Add("RecdBy", GetType(System.Int16), Session("UserNo").ToString())
If ddl_FileSource.SelectedValue.ToString() = "1" Then
dtPreview.Columns.Add("IntExt", GetType(System.Int16), "1")
Else
dtPreview.Columns.Add("IntExt", GetType(System.Int16), "0")
End If
dtTemp = Nothing
End If
'Bind DataTable to Gridview
Session("dtgv") = dtPreview
gv_StockData.DataSource = dtPreview
gv_StockData.DataBind()
MyConnection.Close()
Catch msg As Exception
lb_Error.Text = msg.Message
End Try
结束子
问题是我遇到了错误......我是否从正确的角度接近这个?