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VB.NET --- Exit Program on Error

I'm attempting to write a VB.Net program where if any of my code returns an error, the program closes. Here's what I'm trying, but its not working. I've tried both Application.Exit() and Me.Close(). Neither seems to work, the program just continues on. Can someone please tell me what I'm doing wrong?

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

'call the main funtion
theFunction()

End Sub

Private Sub theFunction

Try
here's where my code goes
Catch
'there was an error, need to quit the program
QuitApp()
End Try

End Sub

Private Sub QuitApp()

here's where my code goes to close all open objects

Application.Exit()

End Sub

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Dirk Haest

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cfg1980

ASKER

System.Windows.Forms.Application.Exit() worked for me. Thank you

cfg1980

ASKER

Opps sorry, I meant System.Environment.Exit(-1) worked for me....not the Application.Exit()

Fernando Soto

Hi cfg1980;

The default Shutdown mode for a Windows Form application is "When startup form is closed." In .Net Framework 2.0 and before this can be changed to "When last form closes." In .Net 3.0 they added a third option which is "On Explicit Shutdown" which the application only shuts down when Application.Shutdown() or Application.Shutdown(int32) where the int32 is the return code is called.

The class that has the function "Private Sub theFunction" if it is in the form that the program starts on then this should work, Me.Close(), If not then you need a reference to the main form so that you can close it with the Me.Close() method.

Fernando

Fernando Soto

Hi cfg1980;

A couple of issues with using System.Environment.Exit(-1). The Form.Closing or Form.Closed methods are not called and so any cleanup of all open forms need to be done individually. The other thing is that according to Microsoft System.Environment.Exit(-1) can cause a SecurityException - if "The caller does not have sufficient security permission to perform this function. " so check out the code.

Fernando