String operation using c#

Question

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Hello,

I want to remove password='efgh' from the following string. How can I do that using c#.

XML

<?xml version="1.0"?><wql host='192.168.1.127' username='abcd' password='efgh' Type='XYZ'>
<query id='0.' ns='root\cimv2' devicetype='123'><![CDATA[select * from abc]]>
</query></wql>

Regards
Sebastian

Posted 21-Mar-12 21:45pm

Sebastian T Xavier

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2 solutions

Solution 1

Try this :

C#

string output = xmlstring.Replace("password='efgh'","");

Posted 21-Mar-12 21:47pm

Mehdi Gholam

Comments

Sebastian T Xavier 22-Mar-12 3:52am

ha ha ha... lazy solution. But the length / value of password will wary every time, so what to do?

Sergey Alexandrovich Kryukov 22-Mar-12 3:54am

Damn, this is XML, parse it! There are three ways of doing it.
--SA

Sergey Alexandrovich Kryukov 22-Mar-12 3:57am

And this answer is the direct result of your question, literally. What else could you expect. This is me who starts most of the answers with "The question makes no sense"; many other try to just answer, I don' really know why though... :-)
--SA

Mehdi Gholam 22-Mar-12 4:01am

Well you did not specify anything else.

Sebastian T Xavier 22-Mar-12 4:00am

pardon me.... please forget the XML , consider this as a simple string. then how we can do it? I want to store the whole string except the password in DB. password , username & host will be different every time.

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Clifford Nelson · Accepted Answer · 2012-03-21T22:56:00

You can use RegEx (regular expressions). I am not an expert with RegEx, but there is information at http://www.knowdotnet.com/articles/regereplacementstrings.html[^]. The regular expression you would need is "password=\'[a-z]+\'". Here is some code to show that this works:

C#

string x = "sdlkfsdal password='edere' dfldskflkds";
 Regex rx = new Regex("password=\'([a-z]+)\'");
var r = rx.Match(x);
if (r.Groups.Count > 0)
{
    var g1 = r.Groups[0]; // = password='edere'
    var g2 = r.Groups[1]; // = edere
}

Notice I put () around the "[a-z]+", which allows you to get the actual password.