vb.net 列表框到文本文档没有覆盖
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listbox to text document no overwriting
提问by user2581791
hello i am using this code to save listbox1 contents to .txt document it works. but as soon i reopen the program and save new text it overwriting original text how can i make it add as an additional text rather then overwriting. thank you so much every 1.
你好，我正在使用此代码将 listbox1 内容保存到 .txt 文档中。但是，一旦我重新打开程序并保存新文本，它就会覆盖原始文本，我该如何将其添加为附加文本而不是覆盖。非常感谢你每1。
Dim W As IO.StreamWriter
Dim i As Integer
W = New IO.StreamWriter("C:\test\test.txt")
For i = 0 To ListBox2.Items.Count - 1
W.WriteLine(ListBox2.Items.Item(i))
Next
W.close()
回答by D_Bester
Try this
尝试这个
W = New IO.StreamWriter("C:\test\test.txt", True)
The true statement indicates that you want to append text to an existing file.
true 语句表示您希望将文本附加到现有文件。
回答by Jeff
This is great!
这很棒！
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
Dim count As Integer = System.IO.File.ReadAllLines("location").Length
If count <= 9 Then
MsgBox("less then 10")
Else
MsgBox("more then 10")
End If
End Sub
