C# Discussion Boards - CodeProject

Re: Replace numbers after the . with other numbers [modified]

Alan N7-Jul-09 0:01

Alan N

7-Jul-09 0:01

Hi,
Do you need to know the fractional part of the number or will a simple text replacement suffice?

i.e.

If string starts with "-9999." then
string = "-9999.0000"

Alan.

Pete O'Hanlon7-Jul-09 0:19

7-Jul-09 0:19

The following regex finds all numbers that conform to the pattern -9.9999, where the first part can have any number of digits (and can be a positive or negative integer), but the part after the period is constrained to 4 digits.

Regex regex = new Regex(
    @"(((?<Start>-?)(?<Part>\d*))(\.\d{4}))",
    RegexOptions.IgnoreCase
    | RegexOptions.Multiline
    | RegexOptions.IgnorePatternWhitespace
    | RegexOptions.Compiled
    );

You can then do a replace on this using the pattern:

${Start}${Part}.0000

This version of the code prevents you from incorrectly grabbing items such as A.1234 or the like.

[Edit]Modified because I didn't have Encode HTML tags when pasting set, and the group tags were hidden

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

modified on Tuesday, July 7, 2009 6:44 AM

dan!sh 7-Jul-09 0:32

dan!sh

7-Jul-09 0:32

Pete O'Hanlon wrote:
Regex regex = new Regex( @"(((?-?)(?\d*))(\.\d{4}))", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace | RegexOptions.Compiled );

"parsing "(((?-?)(?\d*))(\.\d{4}))" - Unrecognized grouping construct."

This is the exception while using your regex.

Pete O'Hanlon7-Jul-09 0:46

7-Jul-09 0:46

See the modification above. I didn't have "Encode HTML tags when pasting" set, so the group tags were hidden

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

OriginalGriff7-Jul-09 1:40

OriginalGriff

7-Jul-09 1:40

Pete O'Hanlon wrote:
This version of the code prevents you from incorrectly grabbing items such as A.1234 or the like.

Um, no it doesn't - you need to replace the '*' with a '+' or it matches 0 digits.

Regex regex = new Regex(    @"(((?<Start>-?)(?<Part>\d+))(\.\d{4}))",    
   RegexOptions.IgnoreCase | 
   RegexOptions.Multiline | 
   RegexOptions.IgnorePatternWhitespace | 
   RegexOptions.Compiled );

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

Pete O'Hanlon7-Jul-09 1:53

7-Jul-09 1:53

OriginalGriff wrote:
Um, no it doesn't - you need to replace the '*' with a '+' or it matches 0 digits.

Good spot.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

how to create controls @ run time?

CoderForEver6-Jul-09 20:21

CoderForEver

6-Jul-09 20:21

when i waz doing some project.......it asks user password....in zat page u can also change ur password..........but i just want to increase z size of z form and add some buttons.....i already create z button @ run time but it is not visible.....and i cant locate z location of z button....hw could i solve it???

DaveyM696-Jul-09 22:22

DaveyM69

6-Jul-09 22:22

Obviously English isn't your first language, so just a few points to help you improve and to increase your chances of being understood.
waz = was
zat = that
u = you
ur = your (sometimes you're - short for 'you are')
z = the
@ = at
hw = how

Creating the button isn't enough. You need to add it to the form's Controls property.

Button button = new Button();
button.Text = "&Created in Code";
button.Size = new Size(100, 23);
button.Location = new Point(12, 12);
this.Controls.Add(button);

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Rajesh R Subramanian7-Jul-09 0:01

Rajesh R Subramanian

7-Jul-09 0:01

DaveyM69 wrote:
waz = was
zat = that
u = you
ur = your (sometimes you're - short for 'you are')
z = the
@ = at
hw = how

Gud1 Dave. Smile | :)

It is a crappy thing, but it's life -^ Carlo Pallini

PandemoniumPasha7-Jul-09 0:38

PandemoniumPasha

7-Jul-09 0:38

DaveyM69 wrote:
Obviously English isn't your first language

apparently his member profile says he's from US Suspicious | :suss:

regards

Pete O'Hanlon7-Jul-09 0:58

7-Jul-09 0:58

PandemoniumPasha wrote:
apparently his member profile says he's from US

That doesn't mean anything. America doesn't have an official language, English is merely the convention, it is perfectly possible that his first language could be a different language.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

CoderForEver7-Jul-09 1:48

CoderForEver

7-Jul-09 1:48

Thank you man for helping. About the English, I just wanted to express my question. I think it would be no problem. Bye

What about now. I think my English is good.

Re: detect bluetooth device

DaveyM697-Jul-09 2:04

DaveyM69

7-Jul-09 2:04

No problem. Smile | :)

Your English is much better here. Complete with capitalisation and punctuation too!

Don't be too lazy, badly written text is just hard to read which leads to problems in comprehension for the reader. When you're asking a question to which you need an acurate answer, that is not an ideal situation.

I can't think of any situation in life where the kind of English you used before would be preferable. It may look cool in 'txts 2 ur m8s', but amongst intelligent people, such as you will mostly find here, it just makes you look a dick (IMO)!

detect bluetooth device

nithydurai6-Jul-09 19:56

nithydurai

6-Jul-09 19:56

How can i detect bluetooth device and transfer the data from Pocket PC in C#

Henry Minute6-Jul-09 23:07

Henry Minute

6-Jul-09 23:07

Pocket PC 2003 Filetransfer - The OBEX way[^] and
A Simple Guide To Mobile Phone File Transferring[^] are just two of many articles here on CP dealing with this topic. There must be hundreds, if not thousands more on t'web. Is google broken where you are?

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Client And Server Chat

tamir9016-Jul-09 19:50

tamir901

6-Jul-09 19:50

Hello,
I've built a chat that few clients can connect to the server and every message that each client send all the other recieve it.

I want to add all the user name to each client when a new client is connect.
How can i do it?

i'm using the Hashtable class to store the users.

thanks...

PandemoniumPasha6-Jul-09 20:01

PandemoniumPasha

6-Jul-09 20:01

if you've done all that then it should not be hard to do what you want. the logic is the same. where exactly are you stuck?

regards

tamir9016-Jul-09 20:09

tamir901

6-Jul-09 20:09

How to remove from the other clients the users (from the list box).
The massege i sent with StreamWriter (run on all the tcpClient array) to all the connetced clients.

But somehow i have problem doing it... Frown | :(

PandemoniumPasha6-Jul-09 21:59

PandemoniumPasha

6-Jul-09 21:59

from what i understand, every message a client sends goes to the server which then broadcasts to all the clients. is that correct?
if so, then the server will receive all the notifications regarding users logging in and logging out. it is just a matter of sending a control message to all the clients and notifying them of the changes that occurred. for that you need to design your own protocol and decide how you would like to handle server-client communication. if you have reached as far as broadcasting the messages to all clients, i presume that you have implemented some sort of protocol for the communication. now, all you have to do is extend it to include some server messages or commands that are handled by the client.

regards