String help

[^MisterJingo^]

Hi all,

I have a variable called root which contains
(E:\Web\Website s\fileBrowse\) and then I have a variable called path
which uses root, and adds directories on to it (this is part of a file
browser i've built). I'm trying to simply remove the root string from
the path string, so for example below:

root = E:\Web\Websites \fileBrowse\
path = E:\Web\Websites \fileBrowse\ima ges\

the result I want should be "images\"

I'm attempting to do this using the following line of code:

blah = path.TrimStart( root.ToCharArra y());

This isn't working though. Instead of getting "images\", i'm getting
"ages\". I've tried trimming using a start and end element of the char
array but I still get the same result. It seems that for some reason
the "\" which is trimmed at the end of root is taken as a control
character and so takes the proceding two characters too "im".

Has anyone got any idea how to stop this happening? I'm hoping it's
something simple which i'm overlooking.

Any help would be appreciated.

[Juan T. Llibre]

re:

Is the Replace function VB only?

Yes.

re:

I can't seem to find a standalone replace function in C#.

There isn't one.

Here's a custom Replace function I found some time ago :

public static String Replace(String strText,String strFind,String strReplace)
{
int iPos=strText.In dexOf(strFind);
String strReturn="";
while(iPos!=-1)
{
strReturn+=strT ext.Substring(0 ,iPos) + strReplace;
strText=strText .Substring(iPos +strFind.Length );
iPos=strText.In dexOf(strFind);
}
if(strText.Leng th>0)
strReturn+=strT ext;
return strReturn;
}
}

....it accepts the same 3 parameters as the VB Replace function.


Juan T. Llibre, asp.net MVP
aspnetfaq.com : http://www.aspnetfaq.com/
asp.net faq : http://asp.net.do/faq/
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=============== =============== =====
"^MisterJin go^" <mi*********@gm ail.comwrote in message
news:11******** **************@ i3g2000cwc.goog legroups.com...

Augustin Prasanna wrote:

>Replace function will accept 3 parameters.

Replace (expression, find, replace)

for e.g replace ('test', 's', 'e') will return 'teet' because 's' will be
replaced with 'e'.

I hope this helps you.

MessageBox is for testing purpose. it can be used in windows app. you can
try 'Response.Write ' to test the output

Is the Replace function VB only? I can't seem to find a standalone
replace function in C#.

[Juan T. Llibre]

I should have added that you can also use Regex to replace characters in a string :

using System;
using System.Text.Reg ularExpressions ;

string myString;
myString = "This is a test.";
myString = Regex.Replace(m yString, " is", " was");


Juan T. Llibre, asp.net MVP
aspnetfaq.com : http://www.aspnetfaq.com/
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:ek******** ******@TK2MSFTN GP05.phx.gbl...

re:

>Is the Replace function VB only?

Yes.

re:

>I can't seem to find a standalone replace function in C#.

There isn't one.

Here's a custom Replace function I found some time ago :

public static String Replace(String strText,String strFind,String strReplace)
{
int iPos=strText.In dexOf(strFind);
String strReturn="";
while(iPos!=-1)
{
strReturn+=strT ext.Substring(0 ,iPos) + strReplace;
strText=strText .Substring(iPos +strFind.Length );
iPos=strText.In dexOf(strFind);
}
if(strText.Leng th>0)
strReturn+=strT ext;
return strReturn;
}
}

...it accepts the same 3 parameters as the VB Replace function.


Juan T. Llibre, asp.net MVP
aspnetfaq.com : http://www.aspnetfaq.com/
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"^MisterJin go^" <mi*********@gm ail.comwrote in message
news:11******** **************@ i3g2000cwc.goog legroups.com...

>Augustin Prasanna wrote:

>>Replace function will accept 3 parameters.

Replace (expression, find, replace)

for e.g replace ('test', 's', 'e') will return 'teet' because 's' will be
replaced with 'e'.

I hope this helps you.

MessageBox is for testing purpose. it can be used in windows app. you can
try 'Response.Write ' to test the output

Is the Replace function VB only? I can't seem to find a standalone
replace function in C#.

[^MisterJingo^]

Gozirra wrote:

The replace function is available on the string variable you have.
Here's a short sample. Hope this helps.

string root = @"E:\Web\Websit es\fileBrowse\" ;
string path = @"E:\Web\Websit es\fileBrowse\i mages\";

// You can use Replace this way
path = path.Replace(ro ot, "");
Response.Write( path);

I found the string one :). I was getting confused as that accepts only
two parameters and the one mentioned above accepts three. So I was
curious if it was a VB only thing :).

[^MisterJingo^]

Juan T. Llibre wrote:

re:

Is the Replace function VB only?

Yes.

re:

I can't seem to find a standalone replace function in C#.

There isn't one.

Here's a custom Replace function I found some time ago :

public static String Replace(String strText,String strFind,String strReplace)
{
int iPos=strText.In dexOf(strFind);
String strReturn="";
while(iPos!=-1)
{
strReturn+=strT ext.Substring(0 ,iPos) + strReplace;
strText=strText .Substring(iPos +strFind.Length );
iPos=strText.In dexOf(strFind);
}
if(strText.Leng th>0)
strReturn+=strT ext;
return strReturn;
}
}

...it accepts the same 3 parameters as the VB Replace function.

Thanks for that Juan :).

[^MisterJingo^]

Juan T. Llibre wrote:

I should have added that you can also use Regex to replace characters in a string :

using System;
using System.Text.Reg ularExpressions ;

string myString;
myString = "This is a test.";
myString = Regex.Replace(m yString, " is", " was");

I've been trying to use this to replace '\' with '/', but it doesnt
seem to like it as I get the error:

Exception Details: System.Argument Exception: parsing "\" - Illegal \
at end of pattern.

[Juan T. Llibre]

Have you tried using a literal string... :
http://www.peachpit.com/articles/art...seqNum=10&rl=1

or an escape character... :
http://www.peachpit.com/articles/art...&seqNum=9&rl=1

?

That article is a goldmine of info for string manipulation in C#, btw.


Juan T. Llibre, asp.net MVP
aspnetfaq.com : http://www.aspnetfaq.com/
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"^MisterJin go^" <mi*********@gm ail.comwrote in message
news:11******** **************@ 75g2000cwc.goog legroups.com...

>
Juan T. Llibre wrote:

>I should have added that you can also use Regex to replace characters in a string :

using System;
using System.Text.Reg ularExpressions ;

string myString;
myString = "This is a test.";
myString = Regex.Replace(m yString, " is", " was");

I've been trying to use this to replace '\' with '/', but it doesnt
seem to like it as I get the error:

Exception Details: System.Argument Exception: parsing "\" - Illegal \
at end of pattern.

[Alan Silver]

In article <ek************ **@TK2MSFTNGP05 .phx.gbl>, Juan T. Llibre
<no***********@ nowhere.comwrit es

>Is the Replace function VB only?

Yes.

That's a rather misleading reply isn't it? There's a replace function in
C#, it just isn't stand-alone, it is a method of the string itself.

>re:

>I can't seem to find a standalone replace function in C#.

There isn't one.

So use...

string result = myStringVariabl e.Replace(strin gVar1, stringVar2);

--
Alan Silver
(anything added below this line is nothing to do with me)