C# Discussion Boards - CodeProject

Jun Du23-Jun-06 7:25

23-Jun-06 7:25

This seems to be a typical multi-process application. I prefer to implement them as server/client.

1) Build Program B as a service on Windows. Program A(or C) can easily check if the service is running. Launch the service if it's not running.

2) Implement an IPC channel between Program B and Program A(or C).

smurfy34 wrote:
Please could you give me tips on how to launch progB from other programs and how to leave it on (not be a child of the lauuncher)

Launch Program B as a service or spawn it as a separate process. Either way, Program B will be on even when you close Program A.

smurfy34 wrote:
how to initate communication with progB if an instance is already running.

Through IPC, like socket or shared memory.

Best,
Jun

COMPILE A CSHARP PROJECT

waheed awan23-Jun-06 6:37

waheed awan

23-Jun-06 6:37

is it possible to divide a large csharp project into smaller parts (at runtime)that can be compiled independently..........if possible then how to make parts and how to link those compiled parts to generate an exe of the project

jadoo

Re: COMPILE A CSHARP PROJECT

smurfy3423-Jun-06 6:41

smurfy34

23-Jun-06 6:41

I'm not positive, but I think afte the 1st compile, only the changed parts are recompiled on build unless you specifically request a complete rebuild.

Re: COMPILE A CSHARP PROJECT

Not Active23-Jun-06 7:09

Not Active

23-Jun-06 7:09

How to: Build a Multifile Assembly[^]

In short you use the commandline tool csc.exe to create multiple modules from your code files, then link them together with al.exe

Re: COMPILE A CSHARP PROJECT

waheed awan23-Jun-06 7:28

waheed awan

23-Jun-06 7:28

i am not using command line i am using the compiler class

Re: COMPILE A CSHARP PROJECT

Not Active23-Jun-06 8:17

Not Active

23-Jun-06 8:17

Sorry, I would have replied sooner but I was waiting for you to ask the question again in another post. Poke tongue | ;-P

Unless you are writing a compiler, ie. re-inventing the wheel, then use what is available. You can invoke the csc.exe program from within your code.

Re: COMPILE A CSHARP PROJECT

waheed awan23-Jun-06 9:22

waheed awan

23-Jun-06 9:22

i am going to implement distributed compilation of csharp project and i cant manage to divide huge project into smaller compileable parts..........i need some help on it...........i have posted it again in detail which is

i have made a program that works as follows
1->i browse some csharp project and open the main .cs file
2->the program compiles that project and reports errors as we compile in .net compiler
i want to make my program work in this order
1)select a project of csharp
2)the program should divide the project into independently compileable parts
3)then it should display a list of those parts
4)on selecting one part it should compile that part
5)then after compiling all parts on selecting one by one it should link all the seperately compiled parts to generate exe and show the output

jaadoo

DragDrop registration did not succeed

Saamir23-Jun-06 6:08

Saamir

23-Jun-06 6:08

Hi guys! Help please I am a newbie in C#, I have been working on an application and was working fine on MS Visual C# .Net and then yesterday I downloaded and started converted the application to MS Visual C# 2005. Now on one of the forms I am getting an error when I try to open the form. i.e. form.showDialog(); the error says Invalid OperationException was unhandled and that DragDrop registration did not succeed. Please help! what does this error mean?

sasa

Crossing the process boundry with .NET

suguimoto23-Jun-06 5:39

suguimoto

23-Jun-06 5:39

I Posted a lot of times asking for this, and searched in many ways and I could finally find this article!!
With this you can read a ListView and a Treeview from another process.

<a href="http://dotnetjunkies.com/WebLog/chris.taylor/archive/2004/05/31/14828.aspx" rel="nofollow">http://dotnetjunkies.com/WebLog/chris.taylor/archive/2004/05/31/14828.aspx</a>[<a href="http://dotnetjunkies.com/WebLog/chris.taylor/archive/2004/05/31/14828.aspx" target="_blank" rel="nofollow" title="New Window">^</a>]

All Credits to Chris Taylor

Thanks very much!
And I hope it helps a lot of people!

Best Regards

Print RichtTextBox with BackColor

Fco. Javier Marin23-Jun-06 5:32

Fco. Javier Marin

23-Jun-06 5:32

Hi everyone, I need to print the content of a RichTextBox, I know how do it, but when I assign the backcolor, when I print him, the backcolor isn't draw.

How I can do this?

Greetings and thanks

Catching Exceptions

Colin Angus Mackay23-Jun-06 5:02

Colin Angus Mackay

23-Jun-06 5:02

Unusually for me I'm asking a question...

What is your policy on catching exceptions and why?

What I mean is do you catch exceptions as soon as you can, or do you let them unwind their way up the stack before catching them? What criteria do you use for deciding when to catch an exception?

Scottish Developers events:
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Re: Catching Exceptions

Dustin Metzgar23-Jun-06 5:07

Dustin Metzgar

23-Jun-06 5:07

I like the enterprise library model. You decide whether to catch the exception or rethrow based on configuration.

Logifusion[^]

Re: Catching Exceptions

Josh Smith23-Jun-06 5:07

Josh Smith

23-Jun-06 5:07

Colin Angus Mackay wrote:
Unusually for me I'm asking a question...

There's nothing wrong with that! That's what these forums are for, after all. Smile | :)

I will catch exceptions if there is something I can or should do in response to that exception. Sometimes I'll just catch an exception, log the exception details somewhere, and then throw it back up the call stack so that other call sites can do what they need to do with it.

Enjoy the weekend,
Josh

Re: Catching Exceptions

BoneSoft23-Jun-06 5:17

BoneSoft

23-Jun-06 5:17

Most simple exceptions like validating input and the like I do on the spot. Most complicated situation what I run into in libraries, I'll usually let bubble to the using application, so they can be logged. Those types of exceptions I like to have a full stack trace for tracking the application break.

I guess for me, it all depends on whether or not it's an exception I'll want to investigate and need all the information I can get. Most exceptions in an API library I let bubble.

Try code model generation tools at BoneSoft.com.

Re: Catching Exceptions [modified]

Colin Angus Mackay23-Jun-06 6:10

Colin Angus Mackay

23-Jun-06 6:10

Josh Smith wrote:
There's nothing wrong with that! That's what these forums are for, after all

True - It is just unusual for me to be initiating a thread in this forum.

[Addition]
Weird - It looks like the forum messed up - This was a reply to Josh's post.
[/Addition]

Re: Catching Exceptions

Colin Angus Mackay23-Jun-06 6:13

Colin Angus Mackay

23-Jun-06 6:13

BoneSoft wrote:
Most complicated situation what I run into in libraries, I'll usually let bubble to the using application, so they can be logged. Those types of exceptions I like to have a full stack trace for tracking the application break.

Yup, I agree with that - Users not being the most loquacious when it comes to describing the details of what went wrong it can be very useful.

Thanks for your response.

Re: Catching Exceptions [modified]

BoneSoft23-Jun-06 6:17

BoneSoft

23-Jun-06 6:17

Yeah me too, I usually find what I'm looking for in articles or google. Most of what I can't find there, I assume nobody has attempted. And I assumed that was a response to Josh.

But it's lots of fun surfing for questions I can answer, helps stroke my ego. Poke tongue | ;-P

Try code model generation tools at BoneSoft.com.

-- modified at 12:18 Friday 23rd June, 2006

Wierd, this was supposed to be in response to your first response... CodeProject Help!

Re: Catching Exceptions

A.A.23-Jun-06 10:36

A.A.

23-Jun-06 10:36

Colin Angus Mackay wrote:
What is your policy on catching exceptions and why?

You should catch them as soon as you can deal with them but no sooner.

So I Wouldn't write:

<br />
catch(Exception e){}<br />
or <br />
catch(OrSomeFileNotFoundException e){} //Unless you can deal with it, don't catch it.<br />

Recitation(not full prayer)in AlMasjid AlHaram
Surah AlHaaqa(The Reality)
Surah Maryam(Mary)
Eid Alfitr
Turning Muslim in Texas?

Re: Catching Exceptions

Colin Angus Mackay23-Jun-06 21:32

Colin Angus Mackay

23-Jun-06 21:32

A.A. wrote:
You should catch them as soon as you can deal with them but no sooner.

Makes sense to me.

Some weird person voted your message down, so I counter-voted it.

Re: Catching Exceptions

leppie23-Jun-06 11:44

leppie

23-Jun-06 11:44

Exceptions are debug-time notices to the users of your code Smile | :)

How xacc.ide transforms text to colored words on the screen
Intel PentuimM (aka Centrino) undervolting

Tree view delete

chandler8323-Jun-06 5:00

chandler83

23-Jun-06 5:00

Hi,
i have a folder view which list all my folders in a tree view form. My requirement is, after selecting a folder if i send a delete command it has to delete all folders and its contents. Problem is only after deleting the files in the subfolders,i can delete the folder. i need to do an recursive search. Urgent.... plzzzzzzzz reply. I am using c# windows application.
e.g
1
11
12
121
122
13

say my tree view looks like this... if i delete the folder 1. it should find out all the subfolders. Should delete 13 first and 122 and then 121 and 12 and 11.

plzzzzzzz do guide me... Thanks in advance... Cry | :((

Re: Tree view delete

BoneSoft23-Jun-06 6:00

BoneSoft

23-Jun-06 6:00

private void DeleteStuff(TreeNode root) {
    // If you have children, process them first
    foreach (TreeNode tn in root.Nodes) {
        DeleteStuff(tn);
    }
    // Delete files
}

Try code model generation tools at BoneSoft.com.

Re: Tree view delete

chandler8323-Jun-06 6:26

chandler83

23-Jun-06 6:26

hi i did but then its not working properly..... if i select a node. the rootnode.nodes property is not taking the subfolders of the child node....

1
11
12
13
131
132
14

in the above the 131 and 132 nodes are not accecible.... they r not coming under the collectios..... plzzzzzzzz help me..

thanks a lot in advance......cheers.

Re: Tree view delete

BoneSoft23-Jun-06 8:19

BoneSoft

23-Jun-06 8:19

If you use the method above, and pass it node '13', it will process '131' and '132' before doing 13. You're not using the treeView.Nodes are you?

What ever owns the 1, 11, 12, 13 & 14 nodes (treeView or another node) won't have 131 and 132 in it's Nodes collection, node 13 will. A TreeNode object has a Nodes colleciton just as TreeView does. That's why the method above accepts a TreeNode, and pocesses it's children before itself.

Maybe I don't fully understand you question.

Try code model generation tools at BoneSoft.com.

OpenFileDialog

zaboboa23-Jun-06 3:40

zaboboa

23-Jun-06 3:40

Hello,

I am using standard OpenFileDialog window. Is there a way to suppress (disable) the New Folder button, so that the user does not have the ability to create new folders?

Thank you.

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