extract xmlnode from xmlnodelist by searching atribute name

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Hi,
I have a xml like this

<screen>
<area id="1"></area>
<area>rajni</area>
<area>xyz</area>

Now,I want to extract node of area with attribute id only.

Posted 7-Jan-13 17:14pm

Rajni from delhi

Updated 7-Jan-13 18:03pm

v2

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Sergey Alexandrovich Kryukov 7-Jan-13 23:17pm

Programming language? Platform? Tag all what's applied.
—SA

3 solutions

Solution 1

Here[^] is a guide to XPath.

Here[^] are some reference cards, worth printing out.

Something like "/area[@id='1']", at a guess.

Posted 7-Jan-13 18:13pm

Christian Graus

Comments

Rajni from delhi 8-Jan-13 0:27am

I want a filter like - to extract node which is having an attribute id. so
only this below node should come.As other area nodes doesn't have an id attribute.
<area id="1"></area>

Christian Graus 8-Jan-13 1:09am

You could use wildcards to match any attribute at all

Solution 2

I could have given you a direct solution but would prefer you to learn about it such that you can resolve similar issues by yourself in future. Go through this article that details everything and how you can use XPATH to get desired nodes and attributes: Manipulate XML data with XPath and XmlDocument (C#)[^]

Posted 7-Jan-13 18:16pm

Sandeep Mewara

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Member 8128040 · Accepted Answer · 2013-01-07T19:23:00

//you can use LINQ for that
add below namespace
using System.Xml.Linq;
// just add parent tag in you xml like or if ur xml have then fire linq query over that tag

XML

<Test>
  <area id="1">Deverloper</area>
  <area>rajni</area>
  <area>xyz</area>
</Test>

//After that create object of xdocument like this
XDocument xmldoc = XDocument.Load(@"path of ur xml file/or xml in string form");
//then
var result= xmldoc.Element("Test").Elements("area").Single(a => (int?)a.Attribute("id") == 1).Value;
//This will bring your result.

Thanks