Binding an observable collection to a printer queue - vb.net

Question

I am trying to monitor a print queue using a Observable Collection however when an item is added to the printer queue it does not updated. am I missing something. Here is my code so far.
Imports System.Printing
Imports System.Text
Imports System.IO
Imports System.Collections
Imports System.Management
Imports System.Drawing.Printing
Imports System.Collections.ObjectModel
Imports System.Collections.Specialized
Public Class Form1
Dim localPrintServer2 As LocalPrintServer
Dim defaultPrintQueue2 As PrintQueue
Dim listSentToPrinter As New List(Of String)()
Dim listPrinterQueue As New List(Of String)()
Dim listJobsInQueue As New List(Of String)()
' Private m_queueObList As New ObservableCollection(Of String)
Public queueObList As New ObservableCollection(Of String)
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
AddHandler queueObList.CollectionChanged, AddressOf Me.OnCollectionChanged
End Sub
Private Sub OnCollectionChanged(sender As Object, e As NotifyCollectionChangedEventArgs)
Try
Dim obsSender As ObservableCollection(Of String) = TryCast(sender, ObservableCollection(Of String))
Dim editedOrRemovedItems As New List(Of String)()
getPrintQueue()
If e.Action = NotifyCollectionChangedAction.Add Then
MsgBox("Item Added")
'search listSentToPrinter
End If
If e.Action = NotifyCollectionChangedAction.Remove Then
MsgBox("Item Removed")
End If
'Label1.Text = queueObList.Count
Dim action As NotifyCollectionChangedAction = e.Action
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub getPrintQueue()
Try
localPrintServer2 = New LocalPrintServer()
defaultPrintQueue2 = LocalPrintServer.GetDefaultPrintQueue()
Timer1.Enabled = True
Timer1.Interval = 50
Dim jobs As PrintJobInfoCollection = defaultPrintQueue2.GetPrintJobInfoCollection
For Each job As PrintSystemJobInfo In jobs
'listPrinterQueue.Add(job.Name)
queueObList.Add(job.Name)
Label1.Text = queueObList.Count
'lstPrinterQueue.Items.Add(job.Name & " " & job.JobStatus)
Next
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
Private Sub Iletarerate()
ListBox1.Items.Clear()
For Each item As String In queueObList
ListBox1.Items.Add(item)
Next
End Sub
Public Sub FindJobInQueue(ByVal item As String)
If listJobsInQueue.Contains(item) Then
Else
If (listPrinterQueue.Count >= 1) Then
If listPrinterQueue.Contains(item) Then
lstJobInQueue.Items.Add("Found " & item)
listJobsInQueue.Add(item)
'Update stutus if successfully updated
listSentToPrinter.Remove(item)
End If
Else
' list is empty
End If
End If
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
queueObList.RemoveAt(0)
Iletarerate()
End Sub
End Class
The code works to add everything to the observable collection which is in the queue. The buttons work to add and remove items. The actual print queue does not update the collection