reconnecting a client to socket server [modified] - C# Discussion Boards

Re: covert string to particular pattern

Michael Sync12-Aug-07 18:05

Michael Sync

12-Aug-07 18:05

Amjath Rahman wrote:
add 0 in front of it

String.PadLeft Method[^]

<br />
Dim str As String<br />
Dim pad As Char<br />
str = "forty-two"<br />
pad = "."c<br />
Console.WriteLine(str.PadLeft(15, pad)) ' Displays "......forty-two".<br />
Console.WriteLine(str.PadLeft(2,  pad)) ' Displays "forty-two".

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

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Creating a executable for a custom action

steve_rm12-Aug-07 12:56

steve_rm

12-Aug-07 12:56

Hello,

VS 2005

i have created a small windows application. I am wondering how can i make this into a independent program that can run as a custom action in a setup program.

Is it enough go into the bin directory and use the exe that is in there, and add that to the setup as the custom action.

The windows application uses a picture, is it best to have the picture embedded?

Many thanks for any suggestions.

Steve

Re: Creating a executable for a custom action

Jimmanuel13-Aug-07 7:46

Jimmanuel

13-Aug-07 7:46

Why did your post get downvoted?

Here[^] is an article that contains a good example of how to use your own code for a custom action.

porting c code and crc32

dfn12-Aug-07 9:42

dfn

12-Aug-07 9:42

Hi.
A few quick questions:
Does C# have any function that will compute crc32?
How can I port C code into C#? Do I have to rewrite it, or is there a quicker way?

Re: porting c code and crc32

Luc Pattyn12-Aug-07 10:03

Luc Pattyn

12-Aug-07 10:03

dfn wrote:
Does C# have any function that will compute crc32?

dfn wrote:
Do I have to rewrite it

Yes, that is the easiest way.
There are conversion tools that probably need some postprocessing, for a simple
code snippet it is not worth the trouble.

BTW there are some CRC articles on the CodeProject site...

Smile | :)

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Re: porting c code and crc32

Ravi Bhavnani12-Aug-07 12:13

Ravi Bhavnani

12-Aug-07 12:13

dfn wrote:
Does C# have any function that will compute crc32?

No, but see this[^] article.

/ravi

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How to delete message from Sim card

Babubhai0712-Aug-07 9:29

Babubhai07

12-Aug-07 9:29

Hi Guys:

I have written an client server application in C sharp.My application is connected through GPRS USB modem.

My problem is currently all the messages store in the sim card (by default) and the sim card memory gets full after every 25 messages recieve
how can I programatically store the messages into computer memory and delete it from the modem .

thanks

reconnecting a client to socket server [modified]

gizmokaka12-Aug-07 7:58

gizmokaka

12-Aug-07 7:58

Hello to all,

I am using a socket server in c# I have created based on one from the code project.

it's an asynchronous server, creating a worker thread for client.

till now only tested with one client connected.

my problem is, when I disconnect a client and the reconnect, I get an exception of type

"An existing connection was forcibly closed by the remote host"

I need my application to operate in a manner that when the client reconnects, it's still

communicating with the server on same "IPEndPoint" and keep receiving messages from it,

as if no disconnection occurred.

P.S
When reconnecting the object still holds the same handle and port but ip is changed to
0.0.0.0
when in debug I am breaking on the spot where i get the exception.
The program stands there and values are LocalEndPoint = {192.168.2.100:5001}
on that breakpoint I dis and reconnect the device, and on the same break I get these
new values LocalEndPoint = {0.0.0.0:5001};

Please help me!!!!!!!!!!!

-- modified at 14:04 Sunday 12th August, 2007

.EXE file association

Harkamal Singh12-Aug-07 6:55

Harkamal Singh

12-Aug-07 6:55

As .txt opens with notepad as default, with what program .exe opens with?

I am aware, .exe is native to operating system. However i have a packaged program which is embedded into main program and is extracted to temp folder before execution..however with .tmp extention assigned. I can rename .tmp with .exe, I am just digging into windows internals and curious how this works.

I guess somefunction of rundll.dll is capable of executing .tmp files, but i am not quite informed about it.

Also, noticed that installshield and other installers copies executables as .tmp files and later executes them

thanks well in advance.

h.

Re: .EXE file association

Luc Pattyn12-Aug-07 7:28

Luc Pattyn

12-Aug-07 7:28

The EXE files are not opened by some other program, they run as is, that's why
they are called executables ! And they each can have quite different functionality.

This is different from other files (often called documents):
TXT/DOC/XLS/PPT... files always open with the same program (typ. Notepad, Word,
Excel, PowerPoint...)

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: .EXE file association

Harkamal Singh12-Aug-07 21:29

Harkamal Singh

12-Aug-07 21:29

duh !

Here is the article to load .exe into memory and then execute it programatically...

http://www.codeproject.com/useritems/LoadExeIntoAssembly.asp[^]

StringTokenizer (Urgent) [modified]

ksaw12312-Aug-07 5:21

ksaw123

12-Aug-07 5:21

I have this string :

string number = "%123293395976?;107101637=461?";
and I want to take only this part 293395 and put it in another string.

How can I do it? if you could provide me a code for that problem.

I knew that it could be done by using StringTokenizer or taken it character by character, but I don't know how to do it?

Thank you a lot for your help.

-- modified at 11:30 Sunday 12th August, 2007

Re: StringTokenizer (Urgent)

Luc Pattyn12-Aug-07 5:41

Luc Pattyn

12-Aug-07 5:41

you seem to want to take a few digits out of a sequence of digits;
that certainly is not what a tokenizer would do naturally.

What makes you decide where the start and end of the substring are ?
fixed positions ? depending on earlier characters ?

have a look at String.Substring

if you need more help, try to be clear about what the context is, what those
numbers/digits represent, etc.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: StringTokenizer (Urgent) [modified]

ksaw12312-Aug-07 5:50

ksaw123

12-Aug-07 5:50

Thank you a lot for your reply Wink | ;)

...

Re: StringTokenizer (Urgent)

Luc Pattyn12-Aug-07 6:16

Luc Pattyn

12-Aug-07 6:16

CanadianBoy wrote:

These digits are taken from card reader and the digits I want to take from the card reader digits is product name. By this digits I want to take I can check if the product name is inside the database or not.
I tried String.Substring, but it is not provided in my C#.
if you have or implemented any code that can these digits, I would be thankfull.

That is impossible. Look again.
What happens when you try to use it ? Compiler error ? run-time error ?
If so, show the code and the details of the response.
And if you don't know how to use Substring, look it up on MSDN, on Google,
or in all the articles here on CodeProject.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Hi Fonts Problem

CodeVarma12-Aug-07 5:11

CodeVarma

12-Aug-07 5:11

Hello

i have requirement where i need to load fonts which is
specific to my application from a folder but not from installed font directory C:\windows\fonts. I could achive this by embeddeing
the resource file i.e fonts file *.ttf.

but this solution bolts the application's exe

so i tried using AddFontResource() and RemoveFontResource()
followed by SendMessage() with broadcast so that all the applications
at runtime can read those font resource can read the font file from
the system fonts table.

but this is not happening all the applications like wordpad , msword
are able to read the fonts which i added from my application
but i an unable to create the desired font in my application
i am getting the default font as MS Sans sarifi
pls suggest me any solution to this
so that i can understand basics better
thanking u
Smile | :)

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Re: Hi Fonts Problem

leppie12-Aug-07 23:42

leppie

12-Aug-07 23:42

Look at the PrivateFontCollection class

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excel to c sharp arrays

project c12-Aug-07 2:45

project c

12-Aug-07 2:45

i have some tables in pdf format that have to stored in arrays for my reference in project (c sharp)

now i have coverted those tables into excel sheet. Now my problem is how can i access the tables through c sharp (i am using studio 2003). i also converted the excel sheet into access database so that i can connect it to the project. is it possible ? if can i convert the table intries into integer arrays ?

Re: excel to c sharp arrays

Paul Conrad12-Aug-07 6:22

Paul Conrad

12-Aug-07 6:22

You could do this two ways...either through connecting to excel file Excel on Connectionstrings.com[^] or through Office Interop...

Going the connection string route may be the easiest, but the Office Interop way is powerful but a bit too involved to post...

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Re: excel to c sharp arrays

project c14-Aug-07 4:37

project c

14-Aug-07 4:37

Like this i am now able to read the values, but i am now copying string to string. when i tried declaring s as int array and s = (int) ran.text, i am getting error

how can i convert the ran.text string to s int array

for(int row = 2; row< 12; row++) // loop through first 10 rows excel is

{
ran = (Excel.Range)Worksheet.Cells[row, 1];
s = (string) ran.Text;
MessageBox.Show(s);

}

Re: excel to c sharp arrays

project c14-Aug-07 5:09

project c

14-Aug-07 5:09

s[i]= int.Parse((string)ran.Text);

this is working for me, i dont know whether it is correct type casting or not

Windows form launch order?

ddabble12-Aug-07 1:08

ddabble

12-Aug-07 1:08

How do i select which windows form opens 1st in a project?

I have a create, home, and track form and currently the home form opens first where i obviously want the create form to open 1st.

Thanks

Re: Windows form launch order?

Giorgi Dalakishvili12-Aug-07 1:20

Giorgi Dalakishvili

12-Aug-07 1:20

You can change it in Program.cs file

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Re: Windows form launch order?

ddabble12-Aug-07 2:00

ddabble

12-Aug-07 2:00

E.g.?

Re: Windows form launch order?

Michael Sync12-Aug-07 2:37

Michael Sync

12-Aug-07 2:37

You will see the code like that in Program.cs

<br />
[STAThread]<br />
        static void Main()<br />
        {<br />
            Application.EnableVisualStyles();<br />
            Application.SetCompatibleTextRenderingDefault(false);<br />
            Application.Run(new Form1());<br />
        }

So, change form1 to the form name you want.

eg:

<br />
[STAThread]<br />
        static void Main()<br />
        {<br />
            Application.EnableVisualStyles();<br />
            Application.SetCompatibleTextRenderingDefault(false);<br />
            Application.Run(new FormThatIWantToShow());<br />
        }

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