Как заменить свойство Increment? - Visual Basic .NET

  Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
 
        BunifuCircleProgressbar1.Value = 100 = Conversions.ToString(ListBox1.Items.Count)
        Label9.Text = Conversions.ToString(ListBox1.Items.Count)
 
        If Not BunifuCircleProgressbar1.Value = BunifuCircleProgressbar1.Value = 100 Then
            Try
 
                ListBox1.SelectedIndex = ListBox1.SelectedIndex + 1
                TextBox1.Text = ListBox1.SelectedItem.ToString
            Catch ex As Exception
            End Try

            Try
 
                Dim scanbox As New TextBox
                Dim read As String = My.Computer.FileSystem.ReadAllText("viruslist.dat")
                BunifuCircleProgressbar1. 'делаем увелечение, прирост
                Label8.Text = Conversions.ToString(QR.ListBox2.Items.Count)
                Label2.Text = Conversions.ToString(BunifuCircleProgressbar1.Value)
                scanbox.Text = read.ToString
                Dim md5 As MD5CryptoServiceProvider = New MD5CryptoServiceProvider
                Dim f As FileStream = New FileStream(ListBox1.SelectedItem, FileMode.Open, FileAccess.Read, FileShare.Read, 8192)
                f = New FileStream(ListBox1.SelectedItem, FileMode.Open, FileAccess.Read, FileShare.Read, 8192)
                md5.ComputeHash(f)
                Dim hash As Byte() = md5.Hash
                Dim buff As StringBuilder = New StringBuilder
                Dim hashByte As Byte
                For Each hashByte In hash
                    buff.Append(String.Format("{0:X2}", hashByte))
                Next
                If scanbox.Text.Contains(buff.ToString) Then

                    QR.ListBox2.Items.Add(ListBox1.SelectedItem)
                End If
            Catch ex As Exception
            End Try
        Else
            Timer1.Stop()
            MsgBox("Сканирование завершено.")
            Label9.Text = "0"
            Label8.Text = "0"
            Label2.Text = "0"
            TextBox1.Clear()
            BunifuCircleProgressbar1.Value = 0
         
        End If
    End Sub