how to insert a variable in a middle of a text in vb
<p>for example, how do i insert variable into the text going to written in the text file?</p>

<pre><code>Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim message1 As String = TextBox1.Text
        My.Computer.FileSystem.WriteAllText("C:\TestFolder1\test.txt", "how many edges does" message1 "have?"  , True)
        Process.Start("C:\TestFolder1\test.txt")
    End Sub
End Class
</code></pre>