比喻如何获取sheet表中第2列最后有内容一行的值?相当于vba中Sheets(1).[b65536].End(xlUp).Row的值.
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 App As New MSExcel.Application
Dim Wb As MSExcel.WorkBook = App.WorkBooks.Open(dlg.FileName)
Dim Ws As MSExcel.WorkSheet = Wb.WorkSheets(1)
?????
end if