VB Looping endlessly

[JimTheNim]

Hey guys,

I have a question regarding my code.

I'm using VB 2008 and have created a project that uses the Windows built in 'cleanmgr' to clean out old files, and then another function runs on to search for spyware.
Each process is set into separate forms - when one completes it opens the next form and closes itself - or at least it should!

"desired process is form 1 opens form 2 (cleanmgr), then form 2 runs - and when complete exits and runs form 3, then 4 and so on"

What happens is form 1 runs the cleanmgr for form2 - but form 1 never closes, and form 2 never displays until the cleanmgr is completed which then displays form 3, then form 4, then form 2, then 3 and so!!

Here's my code:

Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim clnmgr As Process
clnmgr = Process.Start("cleanmgr", "/sagerun:10101")

clnmgr.WaitForExit(240000)
' if the process doesn't complete within
' 4 minutes, kill it
If Not clnmgr.HasExited Then
clnmgr.Kill()
End If

Form3.Show()
Me.Close()

Any ideas most welcome.

TIA

 

[DireEmblem]

Form3.Show()
Me.Close()

Thats your issue i believe, your Form2 will not close until Form3.Show() has finished doing its thing..

 

[Haircut]

Thats your issue i believe, your Form2 will not close until Form3.Show() has finished doing its thing..

That shouldn't be the issue.
.Show() opens a form asynchronously so that the original thread can carry on processing.
If you call .ShowDialog() that would open it as a modal window and cause the app to hang until you close Form3.

To the OP:
The code looks OK from an initial glance, if try replacing the time out with one second, or something small and step through where is it hanging?

 

[JimTheNim]

Thanks for the tips guys.

I sorted it by placing the function code for any subsequent form within a timer event - and set the timer interval to 5 seconds.

Don't know why but it works, the new form will open as soon as the previous form is done with it's functions?!