主题：[求助]导入EXCEL问题

Dim dlg As New OpenFileDialog '定义一个新的OpenFileDialog
dlg.Filter = "Excel文件|*.xls"
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("水卫工程量").StopRedraw()
    Dim sts() As String = { "分项工程名称","楼层_名称","楼层_数量","构件_名称","构件_数量","构件_型号规格","管道_计算公式","管道_小计","管道_合计","备注","管道油漆特征_除锈","管道油漆特征_底漆","管道油漆特征_面漆","土方_埋地","土方_埋地深度","土方_特征","土方_长度","油漆面积_基数","油漆面积_除锈","油漆面积_底漆","油漆面积_面漆","支架_基数","支架_合计kg","备忘录" }
   
    SystemReady = False  '关闭刷新
    Try
        'Tables("水卫工程量").AddNew '先添加第一行 标注行
        For x As Integer = 2 To Sheet.Rows.Count -1
            Dim r As Row = Tables("水卫工程量").AddNew '添加2行
           
           
            For y As Integer = 0 To sts.Length -1
               
                r(sts(y)) = sheet(x,y).text
               
            Next
        Next

    Catch ex As Exception
        MessageBox.Show("计算错误")
    End try
    SystemReady = True  '关闭刷新
End If

以上代码导入数值列或字符列没有问题，逻辑列出现错误，不知道怎么写代码