how to return xml from webservice

Question

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i am tring to build a webservice from xml document.document is like this

XML

<?xml version="1.0" encoding="UTF-8" ?> 
- <!--  Generated on Sat, 17 Dec 2011 16:40:23 +0530 
  --> 
- <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
- <channel>
  <atom:link href="http://www.business-standard.com/rss/rss_icon.png" rel="self" type="application/rss+xml" /> 
- <title>
- <![CDATA[ Markets & Investing ->News Now
   
  </title>
  <link>http://www.business-standard.com/</link> 
  <description>The latest news from India's most respected business daily.</description> 
  <language>en-us</language> 
  <managingEditor>webtech@bsmail.in (Webmaster)</managingEditor> 
  <webMaster>webtech@bsmail.in (Webmaster)</webMaster> 
  <generator>PHP RSS Feed Generator</generator> 
- <image>
  <url>http://www.business-standard.com/india/images/logo_08.jpg</url> 
  <title>Business-Standard</title> 
  <link /> 
  <width>248</width> 
  <height>146</height> 
  </image>
- <item>
- <title>
- <![CDATA[ Gold snaps 5-day losing streak, gains Rs 75
   
  </title>
- <description>
- <![CDATA[ Snapping five-day losing streak, gold prices recovered Rs 75 to Rs 27,840 per 10 gram in the national capital today on buying at lower levels amid firm trend overseas.
   
  </description>
  <link>http://www.business-standard.com/india/news/gold-snaps-5-day-losing-streak-gains-rs-75/153154/on</link> 
  <pubDate>Sat, 17 Dec 2011 15:38:06 +0530</pubDate> 
  <guid isPermaLink="true">http://www.business-standard.com/india/news/gold-snaps-5-day-losing-streak-gains-rs-75/153154/on</guid> 
  </item>

.next thing i am doing is
in

C#

public class Service1 : IService1
   {
       public string gettitle()
       {
           XmlDocument xd = new XmlDocument();
           xd.LoadXml(@"D:\satish\satti.xml");
           XmlNodeList XmlNodeListObj = xd.GetElementsByTagName("//title");
           return XmlNodeListObj.ToString ();
       }

also in the iservice class i wrote that corresponding method,
the service is hosted with operations as gettitle(),when i triesd to invoke that service it is saying data at rootelement is invalid,
also how to get that error rectified .
can i get that wcf stored as xml by writing ds.writexml(path);

Posted 18-Dec-11 20:06pm

satishmachineni

Updated 18-Dec-11 20:08pm

Mehdi Gholam

v2

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Comments

Amir Mahfoozi 19-Dec-11 2:16am

It is very clear that XmlNodeListObj.ToString will not produce what you want. Try to put a break point at that point and in immediate window see what is the result of XmlNodeListObj.ToString. You should change your return type to XmlNodeList and return XmlNodeListObj. As I know you can return any serializable object.

Sergey Alexandrovich Kryukov 19-Dec-11 2:22am

Is it really a Web service or WCF-based service?
--SA

satishmachineni 19-Dec-11 2:26am

wcf based service

satishmachineni 19-Dec-11 2:30am

can u tell me what is wrong in my approach

satishmachineni 19-Dec-11 2:31am

if i have webservice , directly i can write from proxy as
ds=proxy.getdata();
ds.writexml();
the same thing i was trying to do here

satishmachineni 19-Dec-11 2:22am

it is rerurning strings,when i want to save the resultset of webservice as xml i usually write this
first i craete one proxy,
then ds=proxy.getdata();
ds.writexml("path");

now i am not able to get those ds.writexml , iam getting ds.getitems()

2 solutions

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koolprasad2003 · Answer 1 · 2011-12-18T20:16:00

Solution 1

you have loaded you XML in XmlDocument. now just return XmlDocument's object directly. do not try to return XML.

C#

XmlDocument xd = new XmlDocument();
xd.LoadXml(@"D:\satish\satti.xml");
return xd;

Posted 18-Dec-11 20:16pm

koolprasad2003

Comments

Amir Mahfoozi 19-Dec-11 2:19am

+5

satishmachineni 19-Dec-11 2:28am

if i return xmldocument no use, i want to querty the xml document above to get title only and return that thing as wcf service,the main thing happening here is if i queried ,that is returning as strings

Pratibha Sharma · Answer 2 · 2014-12-28T21:45:00

Solution 2

if i return xmldocument no use, i want to querty the xml document above to get title only and return that thing as wcf service,the main thing happening here is if i queried ,that is returning as strings