showing time out by exiting the from to users

[Arunold]

I need to exit the form when the allowed time is over . How I do this ?

[ambusy]

with a button to click:

Public Class Form1
    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        Me.Close()
        End
    End Sub
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Timer1.Enabled = True
    End Sub
End Class