如何在 VB.NET 中覆盖文本
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How do I overwrite text in VB.NET
提问by Mac
I once got taught how to append a text file ussing the following code, but how do I overwrite the file every time I press button one (nobody taught me that)?
我曾经教过如何使用以下代码附加文本文件，但是每次按下按钮 1 时如何覆盖该文件（没有人教过我）？
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ALPHAVAL As String = "C:\ALPHAVAL.txt"
If System.IO.File.Exists(ALPHAVAL) = True Then
Dim objWriter As New System.IO.StreamWriter(ALPHAVAL, True)
objWriter.WriteLine(TextBox1.Text)
objWriter.Close()
End If
End class
结束班
回答by Shekhar_Pro
Signature of StreamWriter Constructor is this:
StreamWriter 构造函数的签名是这样的：
public StreamWriter(string path,bool append )
So Change your code :
所以改变你的代码：
System.IO.StreamWriter(ALPHAVAL, True)
to :
到 ：
System.IO.StreamWriter(ALPHAVAL, False)
That tells StreamWriterto Overwrite the file.
这告诉StreamWriter覆盖文件。
