当试图将列表框项目保存到文本文件时，我收到错误

Question

所以我想把所有listbox1项目都放到一个文本文件中，然后我不断收到错误＆＃34;＆＃39; item＆＃39;不是＆＃39; String（）＆＃39;＆＃34;的成员

我收到错误：w.WriteLine(ListBox1.items.Item(i))

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        IO.Directory.CreateDirectory("C:\ProxyGrabber")
        Dim w As New IO.StreamWriter("C:\ProxyGrabbe\test.txt")
        Dim i As Integer
        For i = 0 To ListBox1.items.Count - 1
            w.WriteLine(ListBox1.items.Item(i))
        Next
        w.Close()
    End Sub

Answer 1

ListBox1.items.Item(i)

返回一个对象类型。如果列表框项只是字符串，那么您需要做的就是更改

w.WriteLine(ListBox1.items.Item(i))

到

w.WriteLine(CType(ListBox1.Items.Item(i), String))