Application.Run Problem

[rajendra.mishra@gmail.com]

Hi...
I have a windows vb.net application. The StatupObject is a Module
'modMain'.
In the main sub routine i have the following
g_frmMain = New formVMMain
System.Windows. Forms.Cursor.Cu rrent =
System.Windows. Forms.Cursors.D efault
Application.Run (New ApplicationCont ext(g_frmMain))


There is a progress bar in the form which starts everytime a file in a
particular folder is updated.so whenever the file is updated the
progress bar is initialised and shown in the main Form. The application
works fine sometimes but at other times it gives an ArgumentoutofRa nge
Exception at ' Application.Run (New ApplicationCont ext(g_frmMain)) ' this
line. 'Index was out of Range. Must be non negative and less than the
size of the collection.'

Any Help will be appreciated.

Raj

[Chris]

Re: Application.Run Problem

rajendra.mishra @gmail.com wrote:[color=blue]
> Hi...
> I have a windows vb.net application. The StatupObject is a Module
> 'modMain'.
> In the main sub routine i have the following
> g_frmMain = New formVMMain
> System.Windows. Forms.Cursor.Cu rrent =
> System.Windows. Forms.Cursors.D efault
> Application.Run (New ApplicationCont ext(g_frmMain))
>
>
> There is a progress bar in the form which starts everytime a file in a
> particular folder is updated.so whenever the file is updated the
> progress bar is initialised and shown in the main Form. The application
> works fine sometimes but at other times it gives an ArgumentoutofRa nge
> Exception at ' Application.Run (New ApplicationCont ext(g_frmMain)) ' this
> line. 'Index was out of Range. Must be non negative and less than the
> size of the collection.'
>
> Any Help will be appreciated.
>
> Raj
>[/color]

Your problem is not on the application.run object, it's in your form
formVMMain. Tell the compiler to break on all exceptions (Debug ->
Exceptions) and then hopefully it will break where the actual exception
is happening.

Chris

[raulavi]

RE: Application.Run Problem


had the same prob you describe... but it was on
Private Sub me_Paint(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles MyBase.Paint

some times it just crashed after displaying correctly...mea ning the form was
perfectly displayed/working but, when I did call another window and back then
it crashed.
might help some one if not you.

"rajendra.mishr a@gmail.com" wrote:
[color=blue]
> Hi...
> I have a windows vb.net application. The StatupObject is a Module
> 'modMain'.
> In the main sub routine i have the following
> g_frmMain = New formVMMain
> System.Windows. Forms.Cursor.Cu rrent =
> System.Windows. Forms.Cursors.D efault
> Application.Run (New ApplicationCont ext(g_frmMain))
>
>
> There is a progress bar in the form which starts everytime a file in a
> particular folder is updated.so whenever the file is updated the
> progress bar is initialised and shown in the main Form. The application
> works fine sometimes but at other times it gives an ArgumentoutofRa nge
> Exception at ' Application.Run (New ApplicationCont ext(g_frmMain)) ' this
> line. 'Index was out of Range. Must be non negative and less than the
> size of the collection.'
>
> Any Help will be appreciated.
>
> Raj
>
>[/color]

[rajendra.mishra@gmail.com]

Re: Application.Run Problem

Hi Chris/raulavi...

Thanks for the prompt replies

I am not able to catch the exception except at the Application.Run . The
BreakPoints at FormvmMain and elsewhere do not come up...it goes to
this line and throws it...If i handle the exception at Application.run
it goes to catch...but then the application exits itself.

Raj

[Armin Zingler]

Re: Application.Run Problem

<rajendra.mishr a@gmail.com> schrieb[color=blue]
> Hi...
> I have a windows vb.net application. The StatupObject is a Module
> 'modMain'.
> In the main sub routine i have the following
> g_frmMain = New formVMMain
> System.Windows. Forms.Cursor.Cu rrent =
> System.Windows. Forms.Cursors.D efault
> Application.Run (New ApplicationCont ext(g_frmMain))
>
>
> There is a progress bar in the form which starts everytime a file in
> a particular folder is updated.so whenever the file is updated the
> progress bar is initialised and shown in the main Form. The
> application works fine sometimes but at other times it gives an
> ArgumentoutofRa nge Exception at ' Application.Run (New
> ApplicationCont ext(g_frmMain)) ' this line. 'Index was out of Range.
> Must be non negative and less than the size of the collection.'
>
> Any Help will be appreciated.[/color]


What does the callstack window show when the exception occurs? Please
Include the "non-user code" (or "external code") in the window's context
menu.


Armin

[rajendra.mishra@gmail.com]

Re: Application.Run Problem

on doing a quick watch it shows the following error

Application.Run (g_frmMain) Run-time exception thrown :
System.InvalidO perationExcepti on - It is invalid to start a second
message loop on a single thread. Use Application.Run Dialog or
Form.ShowDialog instead.

while the popup message shows the following
"
Index was out of range. Must be non-negative and less than the size of
the collection.
Paramater name: index
"
I have tried using Form.showdialog it gives me the same...for 10 times
it will work fine but sometime it wont...

Raj

[Dennis]

Re: Application.Run Problem

Why don't you start your program (Vb.Net 2003) from your main sub like;
g_frmMain.Show
Applicaton.Run

Why are you using the new application context? Is this a VB.Net 2005 thing
(I use only 2003 due the problems with 2005 that I've read in this newsgroup).

--
Dennis in Houston


"rajendra.mishr a@gmail.com" wrote:
[color=blue]
> on doing a quick watch it shows the following error
>
> Application.Run (g_frmMain) Run-time exception thrown :
> System.InvalidO perationExcepti on - It is invalid to start a second
> message loop on a single thread. Use Application.Run Dialog or
> Form.ShowDialog instead.
>
> while the popup message shows the following
> "
> Index was out of range. Must be non-negative and less than the size of
> the collection.
> Paramater name: index
> "
> I have tried using Form.showdialog it gives me the same...for 10 times
> it will work fine but sometime it wont...
>
> Raj
>
>[/color]