Foxtable(狐表)用户栏目专家坐堂 → [求助]导入EXCEL,提示从字符串“”到类型“Double”的转换无效


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主题:[求助]导入EXCEL,提示从字符串“”到类型“Double”的转换无效

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  发帖心情 Post By:2021/12/16 16:18:00 [显示全部帖子]

Dim dlg As New OpenFileDialog '定义一个新的OpenFileDialog
dlg.Filter= "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)
    Tables("采购表").StopRedraw()
    Dim Cols1() As String = {"编号","类别","名称","规格","单位","数量","采购价"}
    Dim Cols2() As String = {"编号","类别","名称","规格","单位","数量","采购价"}
    For dr1 As Integer = 1 To Sheet.Rows.Count -1
        Dim dr2 As DataRow =DataTables("采购表").AddNew()
        For i As Integer = 0 To Cols1.Length - 1
            Select Case Cols2(i)
                Case "数量","采购价"
                    dr2(Cols2(i)) = val(sheet(dr1,i).text)
                Case Else
                    dr2(Cols2(i)) = sheet(dr1,i).text
            End Select
        Next
    Next
    Tables("采购表").ResumeRedraw()
End If

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