How to read online xml node in asp.net with c#

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Hi There,

I want to read Country node from this online xml :

http://ws.cdyne.com/ip2geo/ip2geo.asmx/ResolveIP?IPaddress=49.14.147.196&LicenseKey=0[^]

See What I Tried -

C#

XmlDocument document = new XmlDocument();
document.Load("http://ws.cdyne.com/ip2geo/ip2geo.asmx/ResolveIP?IPaddress=49.14.147.196&LicenseKey=0"); 
XmlNode node = document.SelectSingleNode("/IPInformation/Country");
string name = node.InnerText;

But not succeeded, Getting Error in string name - Object reference not set to an instance of an object, XmlNode node is also null.

Posted 26-Mar-15 7:38am

Pr!y@

Updated 26-Mar-15 7:43am

v3

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ZurdoDev 26-Mar-15 13:40pm

If you get an error tell us where.

I'm guessing it is on trying to select the IPInformation node. That means it isn't there.

Pr!y@ 26-Mar-15 13:42pm

variable node is null and error is in string name

ZurdoDev 26-Mar-15 13:44pm

node is null because it cannot find /IPInformation/Country

Pr!y@ 26-Mar-15 13:45pm

Please see xml format clicking link

ZurdoDev 26-Mar-15 13:46pm

I have no idea what that means.

The reason node is null is because there is nothing at the path you are trying to select. Your path is wrong.

Pr!y@ 26-Mar-15 13:47pm

but xml is loading properly

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Richard Deeming · Accepted Answer · 2015-03-26T07:52:00

The returned XML document has a default namespace. Unfortunately, the XmlDocument doesn't make it easy to select nodes with a default namespace. You need to create an XmlNamespaceManager, add a namespace prefix for the default namespace, and change your XPath expression to use the new namespace prefix:

C#

XmlDocument document = new XmlDocument();
document.Load("http://ws.cdyne.com/ip2geo/ip2geo.asmx/ResolveIP?IPaddress=49.14.147.196&LicenseKey=0"); 

XmlNamespaceManager namespaceManager = new XmlNamespaceManager(document.NameTable);
namespaceManager.AddNamespace("x", document.DocumentElement.NamespaceURI);

XmlNode node = document.SelectSingleNode("/x:IPInformation/x:Country", namespaceManager);
string name = node.InnerText;