Dim dlg As New OpenFileDialog '定义一个新的OpenFileDialog
dlg.Filter= "Excel文件|*.xls;*.xlsx" '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)
Tables("订单").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 = {"编号","产品","客户","雇员","单价","折扣","数量","日期"}
'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 bh As String = sheet(n,0).Text
Dim cp As String = sheet(n,1).Text
Dim kh As String = sheet(n,2).Text
Dim cy As String = sheet(n,3).Text
If DataTables("订单").Find("编号 = '" & bh & "' and 产品='" & cp & "' and 客户='" & kh & "' and 雇员='" & cy & "'") Is Nothing Then '如果不存在同编号的订单
Dim r As Row = Tables("订单").AddNew()
For m As Integer = 0 To nms.Length - 1
r(nms(m)) = Sheet(n,m).Value
Next
End If
Next
Tables("订单").ResumeRedraw()
End If
小白不容易,花了3个小时才做明白。导入数据时编号 产品 客户 雇员 4个值相同时不导入
[此贴子已经被作者于2018/12/18 10:48:37编辑过]