How do I unload all open forms in VB.NET?

In the middle of converting VB6 code to VB.NET, I need to replace the following code that intends to close all open forms remaining in the application.

'close all sub forms
For i = My.Application.OpenForms.Count - 1 To 1 Step -1
    'UPGRADE_ISSUE: Unload Forms() was not upgraded. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="875EBAD7-D704-4539-9969-BC7DBDAA62A2"'
    Unload(My.Application.OpenForms(i))
Next i

I've replaced the Unload function with Close (as indicated by TFM), but the compiler complains that OpenForms is not a member of My.Application.

Where can I access the open forms?

From stackoverflow

• Have a look at the Application.Windows property.

• Application.Exit will pretty much do the same.

  AS I suppose you want to close the application anyway if all forms are closed.

  Franci Penov : pulling out the power plug will achieve the desired result as well. nevermind the few side effects... :-)))

  Cerebrus : +1 for that often missed point. ;-)

  MarkJ : The Form.Closed and Form.Closing events are not raised when the Application.Exit method is called to exit your application. If you have validation code in either of these events that must be executed, you should call the Form.Close method for each open form individually before calling Exit method.

• The OpenForms property returns a FormCollection. You can iterate through the collection to process all forms.

  For each f as Form in My.Application.OpenForms
   f.Close()
  Next
  

  brass-kazoo : Its strange, I saw many people saying that this worked for them in VS 2005. My compiler refuses to acknowledge OpenForms (VS 2008)... Could it have been changed between the two versions??

  MarkJ : It's in the VS 2008 documentation. http://msdn.microsoft.com/en-us/library/eh13dca9.aspx

  MarkJ : Just tried it in VB2008 EXpress Edition. It works for me - does exactly what it says on the tin

  Cerebrus : I see no reason for it not to work. What error does your compiler raise?

  brass-kazoo : The error is: 'OpenForms' is not a member of 'i_hi002.My.MyApplication'.

  brass-kazoo : So All I was missing (thanks to person-b's comment) was the import - 'Imports System.Windows.Forms'!

• I uncovered this solution,

  'close all sub forms
  For i = System.Windows.Forms.Application.OpenForms.Count - 1 To 1 Step -1
      Dim form As Form = System.Windows.Forms.Application.OpenForms(i)
      form.Close()
  Next i
  

  ...which looks alright (if not verbose), and I'll be able to test it just as soon as I can compile everything else..

  Cerebrus : This is another way of applying for-each (with a slight performance difference for large number of iterations).

  Lucas Jones : You can just use Application.OpenForms, as usually you have 'Imports System.Windows.Forms' anyway.

  brass-kazoo : Ahh... Thats what I was missing, the import!