C# Discussion Boards - CodeProject

24-May-07 23:16

The main method of a Windows Application:

static void Main(string[] args)<br />
        {<br />
            Application.EnableVisualStyles();<br />
            Application.SetCompatibleTextRenderingDefault(false);<br />
<br />
            try<br />
            {               <br />
                    Application.Run(new MainForm());               <br />
            }<br />
            catch (Exception ex)<br />
            {                <br />
                    MessageBox.Show("Caught exception in Main method.")<br />
            }<br />
        }

I've put the Run method inside a try-catch block.

When an exception is caught inside a method that belongs to the MainForm class, I throw that exception, expecting to see the MessageBox called from the Main method.

Things happen as expected when I run the program in debug mode form VS.

However, if I run the exe file directly from the Debug folder of my project, the program behaves differently, in the sense that the message box does not pop up anymore, and instead the much-hated "Unhandled exception has occured in your application." window shows.

The same happens if I generate a beep on the PC speaker(System.Console.Beep()) instead of showing the message box.

I really don't understand. Why is the exception caught only in Debug mode??

Thanks.

MicealG24-May-07 23:26

24-May-07 23:26

Did you check Wikipedia?

Freedom is the right to say that 2+2=5 if this is so everything else will follow.

Sandeep Akhare25-May-07 1:52

Sandeep Akhare

25-May-07 1:52

MicealG wrote:
Did you check Wikipedia?

Dude don't take things personally Smile | :)

I think his intension was only for fun/kidding perpose

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

mav.northwind26-May-07 23:16

mav.northwind

26-May-07 23:16

Hi!
Although I don't understand why this behaviour is like it is in every detail, I think I can tell you how to get consistent behaviour in every case:

Add

Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);

before calling Application.Run(... and the corresponding event handler like this:

static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
{
    throw e.Exception;
}

Now every exception will be caught by your "top level" try/catch.

Regards,
mav

--
Black holes are the places where God divided by 0...

blackjack215027-May-07 23:31

27-May-07 23:31

Thanks. It does the trick, even though it's a little unorthodox.

PS: I like you signature. Wink | ;)

reporting services

kalyan_241624-May-07 23:08

kalyan_2416

24-May-07 23:08

hi all
while using reports...
in a table sum of one column will appear when there are values in the columns

when there are no values in the column #Error appears...
i wanna remove that #error and display some thing else

i am using aggregate function SUM in the footer...
thanks bye

Unknown Dot Net Error

MicealG24-May-07 23:05

24-May-07 23:05

Hey folks,

If someone could shed some light on this error message it would be great.
Error Message

Freedom is the right to say that 2+2=5 if this is so everything else will follow.

Muammar©24-May-07 23:13

Muammar©

24-May-07 23:13

No unhandled exception??

Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)

MicealG24-May-07 23:25

24-May-07 23:25

Can you narrow this done slightly, I'm staring at a lot of code?

Freedom is the right to say that 2+2=5 if this is so everything else will follow.

Guffa25-May-07 0:14

Guffa

25-May-07 0:14

Normally an application will catch an exception at the base level of the application and show a message to that effect before ending.

---
single minded; short sighted; long gone;

MicealG25-May-07 2:26

C# DataGridView using select statement need an example

25-May-07 2:26

I added a try/catch/finally to the program.cs, do you think that this will help me capture the error?

Freedom is the right to say that 2+2=5 if this is so everything else will follow.

spawn_ro198524-May-07 22:51

spawn_ro1985

24-May-07 22:51

Hi!
I need an example that shows how it works a DataGridView with a SELECT statement.For example I have a comboBox with 4 tables(Oferte, Transport, Locatie, Rezervari) and the fields for Oferte(id_oferta, data_start, data_stop, etc.). When I select one of them from the comboBox I want so see the selected table fields in my DataGridView. I don't know how to do this, so if you could help me...thank you.

Re: C# DataGridView using select statement need an example

Muammar©24-May-07 23:17

Muammar©

24-May-07 23:17

Try this.

Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)

Re: C# DataGridView using select statement need an example

spawn_ro198525-May-07 5:29

spawn_ro1985

25-May-07 5:29

I tried that code and it works but I don't understand exactly how it works. I need something else. I don't want to write the select statement in the form when compilling the program. I must select from the comboBox the wanted table and then it will apear in my dataGrid(and I supose that must be done with the select statement somewhere in the comboBox) . I'm a begginer in this language and I don't know very well how to use it.
Thank you for your example, Hlihor Vlad.

running .net application using Crystal Reports

Seishin#24-May-07 22:32

Seishin#

24-May-07 22:32

Hi!
i'm having a problem running an aplication that uses crystal reports on machines with .net framework 2.0 only..
to clarify.. i have a machine with winXP and .net framework 2.0 installed.. when i try to run an application (vs2005) in which i use Crystal Reports it crashes..
i tried copying CR dll's to the release directory but didn't work..
thanks for any help

life is study!!!

Re: running .net application using Crystal Reports

Harini N K24-May-07 23:33

Harini N K

24-May-07 23:33

Hi
Re-install Crystal report component alone and try again ..

Harini

Re: running .net application using Crystal Reports

Seishin#29-May-07 23:49

Seishin#

29-May-07 23:49

well.. to reinstall something i'd have to install it first..
my problem is that on target machine there is .net framework 2.0 only.. no CR..
btw. where can i find something to install CR on target machines?!

life is study!!!

Animated gif in DataGridViewCell

mertkan6524-May-07 22:31

mertkan65

24-May-07 22:31

Hello All,

I want to show an animated gif in DataGridViewImageCell or DataGridViewCell. When I use DataGridViewImageCell, gif image is shown as static. I tried to use my custom class derived from DataGridViewCell, but I can not define any timer object in my custom class. My image is a simple circle colored red or yellow blinking on a white background. I tried to use Graphics class to draw the the image but I could not get any solution.

Do you have any solution or comment about it?

Thanks,

Mert Kantarcioglu

Merging cells in DataGridView

82.san24-May-07 21:56

82.san

24-May-07 21:56

Hi,

How to merge cells in datagridview?

XML + XSL = HTML

blackjack215024-May-07 21:48

24-May-07 21:48

Hi.

XSL is used to transform XML documents in a friendlier and more easily readable format, HTML.
Is it possible to save the generated HTML as a file on the disk?

Thanks.

Re: XML + XSL = HTML

J4amieC24-May-07 22:09

J4amieC

24-May-07 22:09

Yes.

It is possible to do the XSL transformation into a Stream and then write that Stream to the disk using a StreamWriter

---

How to get answers to your questions[^]

Re: XML + XSL = HTML

blackjack215024-May-07 22:36