空路径名不合法（vb.net 2005，access 2000，）

[错误]空路径名不合法 问题是我无法插入图像以访问数据库。哪一行是错误的。提前感谢帮助我的人

问候,， 菲祖尔

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问题在于前两行：

Dim OpenFileDialog1 As New OpenFileDialog
Dim fsreader As New IO.FileStream(OpenFileDialog1.FileName,IO.FileMode.Open, IO.FileAccess.Read)

您创建了OpenFileDialog的实例，但从未调用它的ShowDialog方法，因此FileName属性为Nothing。你需要这样的东西：

Using OpenFileDialog1 As New OpenFileDialog
    If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
        Dim fsreader As New IO.FileStream(OpenFileDialog1.FileName,IO.FileMode.Open, IO.FileAccess.Read)
        'remaining of code here
    End If
End Using

Using

语句确保对话框被正确处理

Using OpenFileDialog1 As New OpenFileDialog
    If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
        Dim fsreader As New IO.FileStream(OpenFileDialog1.FileName,IO.FileMode.Open, IO.FileAccess.Read)
        'remaining of code here
    End If
End Using