I'm getting a collection of processes, adding them to a ListView, and deleting them from it when needed. All of this is done in a timer.

The problem, is that after a while, the app freezes. I think this is because I'm not disposing any variables.

Here's my code:

VB.NET Code:
  1. Private _processes As New List(Of String)()

  2.  
  3.         Dim killedProcs As New List(Of String)(_processes)

  4.         Dim processes As Process() = System.Diagnostics.Process.GetProcesses()

  5.         For Each proc As Process In processes

  6.  
  7.             Dim procId As String = proc.Id.ToString()

  8.             If Not _processes.Contains(procId) Then

  9.                 _processes.Add(procId)

  10.                 Dim lvi As New ListViewItem(proc.ProcessName)

  11.                 If strImageKey <> String.Empty Then

  12.                     lvi.ImageKey = strImageKey

  13.                 End If

  14.  
  15.                 lvi.Name = procId

  16.                 Try

  17.                     'Add Process ID to lvwProcess

  18.                     lvi.SubItems.Add(proc.Id.ToString())

  19.                 Catch ex As Exception

  20.  
  21.                 End Try

  22.                 Try

  23.                     'Add CPU usage to lvwProcess

  24.                     lvi.SubItems.Add("")

  25.                 Catch ex As Exception

  26.  
  27.                 End Try

  28.                 Try

  29.                     'Add memory usage to lvwProcess

  30.                     lvi.SubItems.Add(proc.WorkingSet64 / 1024 & " K")

  31.                 Catch ex As Exception

  32.  
  33.                 End Try

  34.                 Try

  35.                     'Add the companies name to the lvwProcess, also known as the Vendor Name

  36.                     lvi.SubItems.Add(proc.MainModule.FileVersionInfo.CompanyName)

  37.                 Catch ex As Exception

  38.  
  39.                 End Try

  40.                 Try

  41.                     lvi.SubItems.Add(proc.MainModule.FileVersionInfo.FileDescription)

  42.                 Catch ex As Exception

  43.  
  44.                 End Try

  45.                 Try

  46.                     'Adds the image path to the lvwProcess

  47.                     lvi.SubItems.Add(proc.MainModule.FileName)

  48.                 Catch ex As Exception

  49.  
  50.                 End Try

  51.  
  52.                 lvwProcess.Items.Add(lvi)

  53.  
  54.             Else

  55.                 killedProcs.Remove(procId)

  56.             End If

  57.  
  58.         Next

  59.  
  60.         'remove the killed procs in the list view

  61.         For Each procId As String In killedProcs

  62.             lvwProcess.Items.RemoveByKey(procId)

  63.         Next

I tried disposing of my process list, but the IDE wouldn't let me. That's the only thing I thought would need disposing since it is what hold all of the processes.

Any ideas?

Thanks