vb.net VB 写入前清除文本文件
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VB Clear text file before writing
提问by Mathijs
On the click of a button I want to write my textbox.text into a text file. I got this code working, but I want to clear the textfile before writing and not just add text.
单击按钮后，我想将 textbox.text 写入文本文件。我让这段代码正常工作，但我想在编写之前清除文本文件，而不仅仅是添加文本。
Dim file As System.IO.StreamWriter
file = My.Computer.FileSystem. _
OpenTextFileWriter(mfileName, True)
file.WriteLine(TextBox1.Text)
file.Close()
Any help appreciated.
任何帮助表示赞赏。
回答by Alex K.
Simply
简单地
My.Computer.FileSystem.OpenTextFileWriter(mfileName, False)
Where Falsedisables appending and activates overwriting.
其中False禁用附加并激活覆盖。
回答by Steve
Just use File.WriteAllText
As explained by MSDN
正如 MSDN 所解释的
Creates a new file, write the contents to the file, and then closes the file. If the target file already exists, it is overwritten.
创建一个新文件，将内容写入文件，然后关闭文件。如果目标文件已经存在，它会被覆盖。
Your code becomes just one line
你的代码变成了一行
File.WriteAllText(mfileName, TextBox1.Text)
