C# Discussion Boards - CodeProject

alexey _N11-Apr-06 20:36

11-Apr-06 20:36

Class is an instrument of object oriented programming.
Module is only file. wich can contain classes.
Module can contain several classes.

You'll learn more, after reading book about C# or object oriented programming.

Re: problem

Guffa11-Apr-06 23:03

Guffa

11-Apr-06 23:03

Please don't cross post.

Please don't spam the forum.

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idea of a very special 'Menuitem'

nuessler11-Apr-06 20:16

nuessler

11-Apr-06 20:16

Hello
I've got an idea of a ContextMenu containing special MenuItem's. I've spent the last hours with codeproject, google and a lot of coffee, but I can't find an answer. Perhaps it is very very simple and I'm just too stupid for a clear solution or otherwise it's not possible without writing a complete own implementation of a ContextMenu-class !?

ok, here you are :
I want to develop a 'customMenuItem'-class that can hold 3 or more icons/buttons (play, stop, continue) and a text entry, everything else should act as usual. I want to set a handler to each of the icons/buttons not to the text. I got no prob's with displaying my Items, but I don't found a way to set this kind of hanld or to decide on which button or Icon I've clicked (tryed with some x-positions-attributes).

ok, thanks for reading, but please do not answer with articles like 'how to build menu's with icons', they do not have different handlers for one item or don't analyse any kind of x-position inside.

thx's a lot for reading - sorry for my poor english

Mark Nüßler

Re: idea of a very special 'Menuitem'

alexey _N11-Apr-06 20:26

alexey _N

11-Apr-06 20:26

Play, pause, continue....

You can dynamicaly uptate one item, because when one of them enabled - other items disabled, why do you want to display them all ?

Re: idea of a very special 'Menuitem'

nuessler11-Apr-06 21:34

nuessler

11-Apr-06 21:34

mh,
you are right - my example with 'play, pause, continue' is not the best. just imagine some more states or actions, that do not exclude each other.

thanks for reading my question and your fast answer

Re: idea of a very special 'Menuitem'

alexey _N11-Apr-06 22:42

alexey _N

11-Apr-06 22:42

nuessler wrote:
just imagine some more states or actions, that do not exclude each other.

I think that MenuItem designed for single action.
Try using standart controls such as toolbar.
Or design "floating toolbar".

Re: idea of a very special 'Menuitem'

deanofharvard12-Apr-06 9:32

deanofharvard

12-Apr-06 9:32

Hehe... Sounds like a very interesting problem...

I've done some stuff that's kinda similar, but means overriding the OnPaint method... You could always dynamically position your control according to the MouseClick event...

On_MouseClick(object sender, MouseEventArgs e){
if(e.MouseButton == MouseKeys.Right){
HoverControl control = new HoverControl();
control.Location = new Point(e.Point);
control.Show();
}
}

(Just typed that by hand... It's close, but capitalization and names might be off...)

Handle the closing of the control in the control. If you're working with a grid, you could use the object you've got in the selected row of the grid, and if no item selected, don't show the control.

Hope this helps...

F~

Star Application with Windows

hung_ngole11-Apr-06 18:13

hung_ngole

11-Apr-06 18:13

Hi,
I'm a newbie in C#! Now, I want to start my application when Windows (XP SP2) starts.
How can I do?
Thanks,

Hung

-- modified at 0:13 Wednesday 12th April, 2006

Re: Star Application with Windows

alexey _N11-Apr-06 18:23

alexey _N

11-Apr-06 18:23

Add link to exe file into Windows menu "Programs\StartUp" or
add key MyProgram = "c:\MyProgram\MyProgramm.exe" into registry path "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run"
(if you need to run program once add to path "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce")

hello all i need help

zidan91111-Apr-06 17:46

zidan911

11-Apr-06 17:46

hello all i need help
iam zidan from egypt
and i love programming so much and i want to learn how can i start
i hear about C# and more, i want some one help me , how can i start
and thank you all
my mobile num is ( +20104893140 )
Best Regard
A.Zidan
Rose | [Rose]

zidan

Re: hello all i need help

chakkara200311-Apr-06 18:11

chakkara2003

11-Apr-06 18:11

hello friend,

the best way to start learning c# is through msdn, or through online

u can easily learn it (hope u know oops very well)

chakkara

Re: hello all i need help

CWIZO11-Apr-06 19:43

CWIZO

11-Apr-06 19:43

The best way would be to get a book. And get a C# 2.0 book!

--------------------------------------------------------
My development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!

Re: hello all i need help

Bassam Saoud11-Apr-06 19:52

Bassam Saoud

11-Apr-06 19:52

I would recommend Professional C# By Wrox

Re: hello all i need help

HimaBindu Vejella11-Apr-06 19:52

HimaBindu Vejella

11-Apr-06 19:52

https://www.microsoftelearning.com/eLearning/referenceDetail.aspx?productId=45945[^]

"Aim to go where U have never been B4 and Strive to achieve it"
http://groups.yahoo.com/subscribe/dotnetforfreshers
http://himabinduvejella.blogspot.com

Re: hello all i need help

albCode11-Apr-06 20:45

albCode

11-Apr-06 20:45

here u have a great C# book for beginners

http://rapidshare.de/files/17794428/C__Programming_for_the_Absolute_Beginner.rar.html

Updating ListView with Thread (+ extra thread questions)

Skoder11-Apr-06 16:10

Skoder

11-Apr-06 16:10

Hello,

i am trying to keep updating a coloum for each ListViewItem in a ListView.

I though i could just do this by a thread that kept updating every 10 secound but i can see that it is only possible to update / change / work with the ListView from the Thread that originally created it.

Soo how can i achieve what i want ?

Should the thread which updates the ListView instead maybe call a method like Invoke(TheMethod) every 10 seconds, or how should it be done ?

Other Questions about Threads:

I seem to get into 2 usuall problems.

1. I only want 1 thread to be able to be created and working on a method. I usually solve this by declaring the Thread thread globally within the class, soo before i create the Thread i check if thread == null ( create thread ), and in the code which the thread is running i then set thread == null when it exit.

Is this okay ? or are there some smarter way to do it ? maybe some build in type / object or something ?

2. I only want 1 thread a time to run some code. Usually i solve this by declaring an Object threadLock globally within the class, soo i can just do lock(threadLock) { THE CODE HERE }.

Any better way of doing that ?

Best regards

Martin Confused | :confused:

Re: Updating ListView with Thread (+ extra thread questions)

S. Senthil Kumar11-Apr-06 17:46

S. Senthil Kumar

11-Apr-06 17:46

Skoder wrote:
Should the thread which updates the ListView instead maybe call a method like Invoke(TheMethod) every 10 seconds, or how should it be done ?

That's one way to do it. If all the thread does is refresh the listview, you could use the System.Windows.Forms.Timer[^] class instead.

Skoder wrote:
1. I only want 1 thread to be able to be created and working on a method.

You could use the IsAlive[^] property.

Skoder wrote:
2. I only want 1 thread a time to run some code. Usually i solve this by declaring an Object threadLock globally within the class, soo i can just do lock(threadLock) { THE CODE HERE }.

That looks fine.

Regards
Senthil
_____________________________
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How to make a copy of a binary file without using Copy function?

tranthuyen11-Apr-06 16:10

tranthuyen

11-Apr-06 16:10

To do this, I tried serializing a .exe binary file into a text file then deserialize that text file into the second .exe binary file. But it does not work. Anybody have solution?

Re: How to make a copy of a binary file without using Copy function?

Christian Graus11-Apr-06 16:56

Christian Graus

11-Apr-06 16:56

What's wrong with the copy function ?

Christian Graus - Microsoft MVP - C++

Re: How to make a copy of a binary file without using Copy function?

mav.northwind11-Apr-06 23:37

mav.northwind

11-Apr-06 23:37

One reason could be that it's blocking the calling thread while it's working without any progress update.

Regards,
mav

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

Re: How to make a copy of a binary file without using Copy function?

alexey _N11-Apr-06 18:28

alexey _N

11-Apr-06 18:28

Try using StreamReader, StreamWriter classes in namespace System.IO.

In framework 2.0 you can use the function ReadAllBytes and WriteAllBytes in namespace File.

Re: How to make a copy of a binary file without using Copy function?

mav.northwind11-Apr-06 23:35

mav.northwind

11-Apr-06 23:35

As alexey_n already suggested, you can use StreamReader/Writer.
You create a byte[] buffer and fill it with data from the source file. Then you write the buffer to the target stream.
Repeat as long as the source stream hasn't reached its end.

Btw. if you really want a replacement for Copy, do not forget to set the file properties (modification date for example) after copying the content. The FileInfo class has what you need for this task.

Regards,
mav

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

How to ftp upload a .zip (binary) file?

tranthuyen11-Apr-06 16:07

tranthuyen

11-Apr-06 16:07

How should I read in a binary file so that I can FTP upload it?

How to use Flash with C#

mm31011-Apr-06 15:36

mm310

11-Apr-06 15:36

how to play Flash in C# 2005(WindowsApplication)

-- modified at 21:36 Tuesday 11th April, 2006

Re: How to use Flash with C#

Christian Graus11-Apr-06 16:55

Christian Graus

11-Apr-06 16:55

There's a ton of articles on google.

Christian Graus - Microsoft MVP - C++

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.