Form won't open anymore?

  • Thread starter Thread starter CAM
  • Start date Start date
C

CAM

Hello,

I am using Visual Basic.Net 2008 I have created about 3 forms working OK in
the past, but now I doesn't work anymore. When I try to start to
run/debugging the program it starts to open the form in a second and close
quickly. I don't know why this is happening. I add a treeview control, but
I don't think that is the problem. I just don't know what I did. Any tips
will be appreciated. Thank you in advance.

Cheers.
 
Cam,

Can it be that you have inserted somewhere End instead of completely End If
or something?

It sounds like this.

Cor
 
Hello,

I am using Visual Basic.Net 2008 I have created about 3 forms working OK in
the past, but now I doesn't  work anymore.  When I try to start to
run/debugging the program it starts to open the form in a second and close
quickly.  I don't know why this is happening.  I add a treeview control, but
I don't think that is the problem.  I just don't know what I did.  Any tips
will be appreciated.  Thank you in advance.

Cheers.
Click to expand...

I recommend you to check your startup form's load event. There might
be some code that closes your form because of conditional statements,
or another program on your system may be killing your application.

Plus you can use a technique to catch close reason by putting in your
FormClosing event as follows:


Private Sub Form1_FormClosing(ByVal sender As Object, _
ByVal e As System.Windows.Forms.FormClosingEventArgs) _
Handles Me.FormClosing

' See close reason on exit
Msgbox(e.CloseReason.ToString)

End Sub


Hope this helps,

Onur G.
 
Thanks kimiraikkonen I will look into that I appreciated the tip.


Hello,

I am using Visual Basic.Net 2008 I have created about 3 forms working OK
in
the past, but now I doesn't work anymore. When I try to start to
run/debugging the program it starts to open the form in a second and close
quickly. I don't know why this is happening. I add a treeview control, but
I don't think that is the problem. I just don't know what I did. Any tips
will be appreciated. Thank you in advance.

Cheers.
Click to expand...

I recommend you to check your startup form's load event. There might
be some code that closes your form because of conditional statements,
or another program on your system may be killing your application.

Plus you can use a technique to catch close reason by putting in your
FormClosing event as follows:


Private Sub Form1_FormClosing(ByVal sender As Object, _
ByVal e As System.Windows.Forms.FormClosingEventArgs) _
Handles Me.FormClosing

' See close reason on exit
Msgbox(e.CloseReason.ToString)

End Sub


Hope this helps,

Onur G.
 
Don't forget that you can start the debugger using Step Into (F8). That
enables you to trace the execution from the very first command, before the
form is shown.
 
Thanks James for the tip.

James Hahn said:
Don't forget that you can start the debugger using Step Into (F8). That
enables you to trace the execution from the very first command, before the
form is shown.
Click to expand...
 
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