主题：CXCEL导入

我有一金华销售表，其中内容是采用每次导入CXCEL表“销售信息”表中的数据的，但是该表中有很多列，跪求如何导入该表相对应的列，而忽略其它不需要导入的列。

Dim Book As New XLS.Book("F:\销售信息.xls")
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Tables("金华销售").StopRedraw()
'注意以下数组中列名称的顺序,必须和Excel表中的列顺序一致
Dim nms() As String = {"店铺旺旺","卖家备注","旗帜颜色","成交时间","快递类型","商家编码","二级编码","商品数量"}
'注意下面的循环变量从1开始,而不是从0开始,因为Excel表的第一行是标题
For n As Integer = 1 To Sheet.Rows.Count -1
    Dim r As Row = Tables("金华销售").AddNew()
    For m As Integer = 0 To nms.Length - 1
         r(nms(m)) = Sheet(n,m).Value
    Next
Next
Tables("金华销售").ResumeRedraw()

mark 通用excel导入

参考例子

下载信息  [文件大小：   下载次数： ]

点击浏览该文件:导入excel文件.zip

以上内容如下代码：

Dim dt As DataTable = DataTables("金华销售")
Dim Result As DialogResult
Result = MessageBox.Show("确定要导入吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
If Result = DialogResult.Yes Then
    Dim dlg As New OpenFileDialog
    dlg.Filter = "Excel文件|*.xls"
    dlg.MultiSelect = True '允许选择多个文件
    If dlg.ShowDialog =DialogResult.OK Then
        Dim Book As New XLS.Book(dlg.FileName)
        Dim Sheet As XLS.Sheet = Book.Sheets("3.1全")
        dt.ResumeRedraw()
        dt.StopRedraw()
        'systemready = False
        Dim nms As New Dictionary(Of String, Integer)
        Dim dic As new Dictionary(Of DataRow, Integer)
        Dim ls As new List(Of Integer)
        For c As Integer = 0 To sheet.Cols.Count - 1
            If  dt.DataCols.Contains(sheet(0,c).Text.replace(" ", "")) Then
                nms.Add(sheet(0,c).Text.replace(" ", ""), c)
            End If
        Next
        For n As Integer = 1 To Sheet.Rows.Count -1
            Dim sfzhm As String = sheet(n,nms("店铺旺旺")).Text
            If sfzhm = "" Then Continue For
            Dim dr As DataRow = dt.Find("店铺旺旺 = '" & sfzhm & "'")
            If dr Is Nothing Then
                ls.add(n)
            Else
                dic.Add(dr, n)
            End If
        Next
        For Each key As DataRow In dic.Keys
            For Each m As String In nms.keys
                If dt.DataCols(m).IsBoolean Then
                    If Sheet(dic(key),nms(m)).Text = "" OrElse Sheet(dic(key),nms(m)).Text = "False" OrElse Sheet(dic(key),nms(m)).Value = 0 Then
                        key(m) = False
                    Else
                        key(m) = True
                    End If
                Else If dt.DataCols(m).Expression > "" Then
                    '表达式列
                Else If dt.DataCols(m).IsNumeric Then
                    key(m) = val(Sheet(dic(key),nms(m)).Value)
                Else If dt.DataCols(m).IsDate Then
                    Dim d As Date
                    If Date.TryParse(Sheet(dic(key),nms(m)).Value, d)
                        key(m) = d
                    End If
                   
                Else
                    key(m) = Sheet(dic(key),nms(m)).Value
                End If
            Next
        Next
        For Each l As Integer In ls
            Dim ndr As DataRow = dt.AddNew
            For Each m As String In nms.keys
                If dt.DataCols(m).IsBoolean Then
                    If Sheet(l,nms(m)).Text = "" OrElse Sheet(l,nms(m)).Text = "False" OrElse Sheet(l,nms(m)).Value = 0 Then
                        ndr (m) = False
                    Else
                        ndr (m) = True
                    End If
                Else If dt.DataCols(m).Expression > "" Then
                    '表达式列
                Else If dt.DataCols(m).IsNumeric Then
                    ndr (m) = val(Sheet(l,nms(m)).Value)
                Else If dt.DataCols(m).IsDate Then
                    Dim d As Date
                    If Date.TryParse(Sheet(l,nms(m)).Value, d)
                        ndr (m) = d
                    End If
                Else
                   
                    ndr (m) = Sheet(l,nms(m)).Value
                End If
            Next
        Next
        dt.ResumeRedraw()
        'systemready = True
    End If
End If

可以解决一次导入问题，但是二次导入的时候是在原来的基础上更新，我需要每次的导入都能记录上去，而不是只在原来的上面作出更新，请老师指教

Dim dt As DataTable = DataTables("金华销售")
Dim Result As DialogResult
Result = MessageBox.Show("确定要导入吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
If Result = DialogResult.Yes Then
    Dim dlg As New OpenFileDialog
    dlg.Filter = "Excel文件|*.xls"
    dlg.MultiSelect = True '允许选择多个文件
    If dlg.ShowDialog =DialogResult.OK Then
        Dim Book As New XLS.Book(dlg.FileName)
        Dim Sheet As XLS.Sheet = Book.Sheets("3.1全")
        dt.ResumeRedraw()
        dt.StopRedraw()
        'systemready = False
        Dim nms As New Dictionary(Of String, Integer)
        Dim dic As new Dictionary(Of DataRow, Integer)
        Dim ls As new List(Of Integer)
        For c As Integer = 0 To sheet.Cols.Count - 1
            If  dt.DataCols.Contains(sheet(0,c).Text.replace(" ", "")) Then
                nms.Add(sheet(0,c).Text.replace(" ", ""), c)
            End If
        Next
        For l As Integer = 1 To Sheet.Rows.Count -1
            Dim ndr As DataRow = dt.AddNew
            For Each m As String In nms.keys
                If dt.DataCols(m).IsBoolean Then
                    If Sheet(l,nms(m)).Text = "" OrElse Sheet(l,nms(m)).Text = "False" OrElse Sheet(l,nms(m)).Value = 0 Then
                        ndr (m) = False
                    Else
                        ndr (m) = True
                    End If
                Else If dt.DataCols(m).Expression > "" Then
                    '表达式列
                Else If dt.DataCols(m).IsNumeric Then
                    ndr (m) = val(Sheet(l,nms(m)).Value)
                Else If dt.DataCols(m).IsDate Then
                    Dim d As Date
                    If Date.TryParse(Sheet(l,nms(m)).Value, d)
                        ndr (m) = d
                    End If
                Else
                   
                    ndr (m) = Sheet(l,nms(m)).Value
                End If
            Next
        Next
        dt.ResumeRedraw()
        'systemready = True
    End If
End If

谢谢红袍老师，以上代码可以解决问题，不过每次导入在最后面多增加了一行，能消除吗

非常感谢