Question

我是vb.net的新手，我想创建一个包含多文件选项的简单程序。我发现了这个YouTube视频：https://www.youtube.com/watch?v=8_pK0blSQr4 当我运行它时，迭代器会进行额外的迭代，从而导致错误。我试图将for循环计数减1，但是没有用，for循环变为原始值。

我做错了什么？

 Private Sub load_acc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles load_acc.Click
    OpenFileDialog1.Filter = "Text file|*.txt|All files| *.*"

    If OpenFileDialog1.ShowDialog = DialogResult.OK Then
        For x = 0 To (OpenFileDialog1.FileName.Count - 1)
            acc_list.Items.Add(OpenFileDialog1.FileNames(x))
        Next

    End If
End Sub

Answer 1

您可以使用每个

   For each file as string in OpenFileDialog1.FileNames
       acc_list.Items.Add(file) 
   Next

Answer 2

我想你想要

For x = 0 To (OpenFileDialog1.FileNames.Count - 1)

（注意FileNames上的“s”）而不是

For x = 0 To (OpenFileDialog1.FileName.Count - 1)

VB.NET多文件打开问题

2 个答案: