Object reference not set to an instance of an object

"Maddy" <maddy786@dotnet.itags.org.gmail.comwrote in message
news:1193062970.917436.191790@dotnet.itags.org.v23g2000prn.googlegr oups.com...

Quote:

Originally Posted by

at System.Windows.Forms.Control.OnDoubleClick(EventAr gs e)

Are you sure this is an ASP.NET app...?

--
Mark Rae
ASP.NET MVP
http://www.markrae.netHey Mark...all files are .cs
how do I tell? :$
hey well all files are saved as .cs
how do I tell ? :$
Is this an application that is shown in a browser or in its own Windows ?

ASPNET is to create web sites that are displayed in an internet browser...

Basically this error means that you are trying to use an object that is null
(not initialized). Check what you have on line 57...
--
Patrice

"Maddy" <maddy786@.gmail.coma crit dans le message de news:
1193063844.349542.9260@.q3g2000prf.googlegroups.com ...

Quote:

Originally Posted by

Hey Mark...all files are .cs
how do I tell? :$
>

"Maddy" <maddy786@.gmail.comwrote in message
news:1193063947.556174.277510@.e9g2000prf.googlegro ups.com...

Quote:

Originally Posted by

hey well all files are saved as .cs
how do I tell ? :$

C# can be used to create WinForms applications as well as WebForms
applications.

If it runs on your desktop (e.g. like Word or Excel), it's almost certainly
a WinForms application.

If it runs in a web browser (e.g. like Google) it's almost certainly a
WebForms application.

Sounds very much like it's a WinForms application, in which case the correct
newsgroup would be

microsoft.public.dotnet.languages.csharp

--
Mark Rae
ASP.NET MVP
http://www.markrae.net
On Oct 22, 10:48 am, "Mark Rae [MVP]" <m...@.markNOSPAMrae.netwrote:

Quote:

Originally Posted by

"Maddy" <maddy...@.gmail.comwrote in message
>
news:1193063947.556174.277510@.e9g2000prf.googlegro ups.com...
>

Quote:

Originally Posted by

hey well all files are saved as .cs
how do I tell ? :$

>
C# can be used to create WinForms applications as well as WebForms
applications.
>
If it runs on your desktop (e.g. like Word or Excel), it's almost certainly
a WinForms application.
>
If it runs in a web browser (e.g. like Google) it's almost certainly a
WebForms application.
>
Sounds very much like it's a WinForms application, in which case the correct
newsgroup would be
>
microsoft.public.dotnet.languages.csharp
>
--
Mark Rae
ASP.NET MVPhttp://www.markrae.net

mark it runs on my desktop...
and actually I did try seraching for a .csharp group but for some
reason it dint come up before...

thanks...

For Patrice..
I guess my main problem is that this error is totally RANDOM.
the program works fine with a certain set of input data files.
However it gives me this error for a different set of data files.
I have chekced the files thoroughly to see if they differ in anyway,
but they're EXACTLY the same format with just different numbers :S...
Its like the computer justs remembers a certain set of data and
rejects ANY other data, popping out this error.