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Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListBox1.Visible = False
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ListBox1.Visible = True
ListBox1.Focus()
End Sub
Private Sub ListBox1_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Leave
ListBox1.Visible = False
End Sub