[ VB NET ] Why my code detected as Virus ?

Avast Free Antivirus / Premium Security
1

I am a user of avast antivirus free edition. I using VB NET. I want to asking why my code is detected as a virus.

Public Class Form1
    Dim i As Integer
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        For i = 1 To 99
            ListBox1.Items.Add(i)
        Next
    End Sub
End Class

Link image : https://drive.google.com/file/d/0B6ssva98AIT2SXhhRlhNT2h2Z0k/view?usp=sharing

2
I want to asking why my code is detected as a [b]virus[/b].
It is not ... Win32:Evo-gen [[b]susp[/b]] = Suspicious

Report it here https://support.avast.com → avast virus lab

3

No detection on VT.

https://www.virustotal.com/en/file/763756bbb5918310c27c96f65a00eb709c9dbff0dd69c5c2e7c30c508b06d9dc/analysis/1442683878/