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Vimalsoft(Pty) Ltd19-Jun-09 7:01

19-Jun-09 7:01

Good Evening All

Am amazed that i cant use the Replace Function , its Probably the long that i had.

i have the Following code

String Username = "Vuyiswa";

          String Password = "secret";

          String strBody = @"<p>Thank you for using !obooking System <br><br> Username:(Username)<br><br>Password:(Password)<br<br>Kind Regards !oBooking</p>";

          strBody  = Regex.Replace(strBody,Username,"(Username)");

          strBody = Regex.Replace(strBody, Password, "(Password)");

          Response.Write(strBody);

i have tried the Normal replace Function, but the Variables are not returned with the Variables values.

Thanks

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.somee.com
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

Re: Replace Function

musefan19-Jun-09 7:14

musefan

19-Jun-09 7:14

string username = "user1";
string password = "pass1";

string body = "something with a (username) and a (password)";

body = body.Replace("(username)", username);
body = body.Replace("(password)", password);

you saying that does not work?

you can also do...

string body = "something with a " + username + " and a " + password;

or...

string body = string.Format("something with a {0} and a {1}", username, password);

...I think your regex could have something to do with the brackets which are used in regular expression to specify a group, but I'm not sure about that

Life goes very fast. Tomorrow, today is already yesterday.

Re: Replace Function

Vimalsoft(Pty) Ltd19-Jun-09 7:23

Vimalsoft(Pty) Ltd

19-Jun-09 7:23

Thanks
i used it this way

string Username = "Vuyiswa";

          string Password = "secret";

          string strBody = @"<p>Thank you for using !obooking System <br><br> Username:(Username)<br><br>Password:(Password)<br<br>Kind Regards !oBooking</p>";
      strBody = strBody.Replace("(Username)", Username).Replace("(Password)", Password);

          Response.Write(strBody)

but what is the Difference between this

strBody.Replace("(Username)",Username);

strBody.Replace("(Password)",Password);

and this working code

strBody = strBody.Replace("(Username)", Username).Replace("(Password)", Password);

Thanks

Re: Replace Function

Luc Pattyn19-Jun-09 7:34

Luc Pattyn

19-Jun-09 7:34

Hi,

string.Replace creates and returns a new string, so do strBody.Replace(...);
that also is why the second way does work.

Smile | :)

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DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Re: Replace Function

Luc Pattyn19-Jun-09 7:33

Luc Pattyn

19-Jun-09 7:33

Hi,

nothing gets replaced, since there is no match: "Vuyiswa" and "secret" are not present in the original strBody.

Smile | :)

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DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Re: Replace Function

Vimalsoft(Pty) Ltd19-Jun-09 7:36

Vimalsoft(Pty) Ltd

19-Jun-09 7:36

That means the Replace Function intellisense is misleading because it says

strBody.Replace(char oldchar,char newChar)

Re: Replace Function

musefan19-Jun-09 7:38

musefan

19-Jun-09 7:38

that is just one of the functions signatures, the other is with string types instead of char types

your intellisense should show multiple signatures available that you can cycle through with the Up/Down arrow keys

Life goes very fast. Tomorrow, today is already yesterday.

Re: Replace Function

Vimalsoft(Pty) Ltd19-Jun-09 7:39

Vimalsoft(Pty) Ltd

19-Jun-09 7:39

I see

Thanks Cool | :cool:

Re: Replace Function

Luc Pattyn19-Jun-09 7:43

Luc Pattyn

19-Jun-09 7:43

Vuyiswa Maseko wrote:
strBody.Replace(char oldchar,char newChar)

that is completely irrelevant, your original post and my reply to it referred to Regex.Replace, not string.Replace; and there are no char variables present at all.

Dead | X|

Luc Pattyn [Forum Guidelines] [My Articles]

DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Re: Replace Function

Vimalsoft(Pty) Ltd19-Jun-09 7:48

Vimalsoft(Pty) Ltd

19-Jun-09 7:48

Correct , what am saying is that the normal replace has those arguments. So i changed from Regex to use normal replace.

thanks

Re: Replace Function

musefan19-Jun-09 7:37

musefan

19-Jun-09 7:37

ahhh... the parameters are in the wrong order. Good Spot! Wink | ;)

Life goes very fast. Tomorrow, today is already yesterday.

Re: Replace Function

Luc Pattyn19-Jun-09 7:45

Luc Pattyn

19-Jun-09 7:45

musefan wrote:
Good Spot!

Not really. If a replace operation fails, either you did not catch the result, or there was no match to begin with. How hard can it be?

BTW: the OP made both mistakes in this thread.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Re: Replace Function

musefan19-Jun-09 7:51

musefan

19-Jun-09 7:51

oh don't get me wrong if I was coding it myself I would know the match had failed as I would have had the parameters in the right order.

But I did not spot that it is the second param that is the search pattern and the third is the replace just by looking at his code. Mainly because I dont use the Regex function often (but we have had that discussion[^] before Smile | :)

)

Life goes very fast. Tomorrow, today is already yesterday.

Re: Replace Function

Luc Pattyn19-Jun-09 7:57

Luc Pattyn

19-Jun-09 7:57

Yeah, it was another regex abuse, there wasn't any real pattern to match, or special substitution going on, just a simple string.Replace; and my view on regex hasn't changed since our last encounter on the subject Big Grin | :-D

Luc Pattyn [Forum Guidelines] [My Articles]

DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

direct access to file memory

sahandshokri19-Jun-09 5:52

sahandshokri

19-Jun-09 5:52

i want to know how i can access to sectors used by typical file to read and write directly them in c#
and i need the methods that read and write hard disk sectors directly
thanks

Re: direct access to file memory

0x3c019-Jun-09 6:00

0x3c0

19-Jun-09 6:00

Use PInvoke. OpenFile(@"\\.\A:", ...), where A: is the drive you want to read. SetFilePointer(startSector). ReadFile(512*numberOfSectors)

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Re: direct access to file memory

Dave Kreskowiak19-Jun-09 10:38

Dave Kreskowiak

19-Jun-09 10:38

Why would you need to do this??

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Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: direct access to file memory

Mark Brend9-Aug-09 3:33

Mark Brend

9-Aug-09 3:33

so what your saying is you don't know...

Re: direct access to file memory

Dave Kreskowiak9-Aug-09 4:01

Dave Kreskowiak

9-Aug-09 4:01

Yes, I do know how to read/write disk sectors. No, I have no idea why he would want to do this.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: direct access to file memory

Mark Brend10-Aug-09 1:48

Mark Brend

10-Aug-09 1:48

well I do not know why he would want to read / write directly to the FAT / NTFS but I would like to tag files with extra infomation, that my compnay would find helpful...

so if you know how Ican do this from c# then that would be handy.

Smile | :)

How to get stream from a IP Camera.

Dinker Batra19-Jun-09 5:15

Dinker Batra

19-Jun-09 5:15

Hi,

Can anybody have anyidea about to get stream or video from a Ip Camera using URL in C#.Net

Thanks in advance.

Dinker

Re: How to get stream from a IP Camera.

EliottA19-Jun-09 7:15

EliottA

19-Jun-09 7:15

This question is incredibly confusing to me, define 'Ip Camera' (access a webcam remotely?) and what do you mean URL? Is it a video feed through the internet or through a network?

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Rotating Ellipse in bounded Rectangle

nryk19-Jun-09 4:26

nryk

19-Jun-09 4:26

hi with GraphicsPath.AddEllipse i created ellipse,if i use GetBounds() i get the bounds of the ellipse,
now if i want to rotate the ellipse keeping the same bounding rectangle how do i calculate the new ellipse to create?

Problem with usercontrol and datasource

dreamkill19-Jun-09 4:10

dreamkill

19-Jun-09 4:10

Hello,
I have a problem, i have created a form and a user control. I have a database on SQL server. I have a combobox on my usercontrol and i would like to implement my combobox with my database. i've used the properties of the combobox to choose the datasource and choose my database and the right table but my combobox is empty.
Whereas if i create a combobox in my form and did the same things with my combobox i have the data inside.
I've tried lot of things but nothing is working , if someone know how to do this i would be very grateful
Thanks

Re: Problem with usercontrol and datasource

EliottA19-Jun-09 4:30

EliottA

19-Jun-09 4:30

Can we see some code to see where the error is?

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