Timer and Progress Bar in VB.NET

Public Class TimeProgressbardemo
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Me.ProgressBar1.Value = 99
        If ProgressBar1.Value >= 100 Then
            ProgressBar1.Value = 0
        End If
        Return
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Timer1.Enabled = True
        Me.ProgressBar1.Step = 10
        Me.ProgressBar1.Maximum = 100
        Me.ProgressBar1.Minimum = 0
        Me.ProgressBar1.Style = ProgressBarStyle.Continuous
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If Me.ProgressBar1.Value <> 0 Then
            Me.Timer1.Enabled = False
            Me.ProgressBar1.Value = 0
        Else
            MsgBox("Value is already reach to zero")
            Return
        End If
    End Sub
End Class

Below is Diagram or figure 1.1 and project Timer and Progress bar Demo.