อยากทราบวิธีการนำค่า Value ของคอนโทรล Trackbar ไปเซฟเป็นไฟล์

trackBar1.Value.ToString())

this.trackBar1.Scroll += new System.EventHandler(this.trackBar1_Scroll);

private void trackBar1_Scroll(object sender, EventArgs e)
{
   MessageBox.Show(trackBar1.Value.ToString());
} 

 If Not System.IO.Directory.Exists(Application.StartupPath & "\Config") Then
            System.IO.Directory.CreateDirectory(Application.StartupPath & "\Config")
        End If

        Dim dt As New DataTable
        Dim path As String = Application.StartupPath & "\Config\connect.xml"

        dt.TableName = "connection"
        dt.Columns.Add("Server")
        dt.Columns.Add("Database")
        dt.Columns.Add("AuthenType")
        dt.Columns.Add("User")
        dt.Columns.Add("Password")

        Dim dr As DataRow
        dr = dt.NewRow
        dr("Server") = Me.cboServer.Text
        dr("Database") = Cryptography.EncryptString(Me.cboDatabase.Text, "xXxXx")
        dr("AuthenType") = Me.cboAuthen.SelectedIndex
        dr("User") = Cryptography.EncryptString(Me.txtUser.Text, "xXxXx")
        dr("Password") = Cryptography.EncryptString(Me.txtPass.Text, "xXxXx")
        dt.Rows.Add(dr)

        dt.WriteXml(path)

        DevExpress.XtraEditors.XtraMessageBox.Show(Me.LookAndFeel, "Save setting complete", "", MessageBoxButtons.OK, MessageBoxIcon.Information)

        dt.Dispose()
        GC.SuppressFinalize(dt)
        dt = Nothing