retrieving an attribute from a node in a nodelist

[Guest]

Hi,
I can't seem to get the syntax correct. I have an xmlnodelist full of
elements called "file". Each file has an attribute called "ID". If I just
want to get, say, the ID of the second file in the list, how do I write this?

Thanks!!!
Mel

 

[Nicholas Paldino [.NET/C# MVP]]

Mel,

You should be able to use an XPath query, like so:

file[@ID]

You can use the SelectSingleNode method (or other select node methods)
to select the attribute(s).

Hope this helps.

 

[Marina]

There is a GetAttribute method of the XmlElement class you can call.

 

[Raj Chudasama]

here is an example from my code
private void LoadExtensions( string url, bool merging,bool isString )

{

ArrayList extens = new ArrayList();

XmlTextReader reader;

if(!isString)

{

Stream stream = MakeStream(url); // this bascially opens the file that has
xml

reader = new XmlTextReader(stream);//this reads the stream (file)

}

else

{

reader = new XmlTextReader(url); //if its url then i don t need to open the
file etc

}

XmlDocument doc = new XmlDocument();

doc.Load(reader);

XmlNodeList nodeLst = doc.GetElementsByTagName("WAMiConf"); //top node


if( nodeLst.Count != 1 )

throw new Exception("Invalid XML data. A single WAMiConf tag is required.");

mErrors = new ArrayList();

foreach( XmlNode topNode in nodeLst )

{

foreach( XmlNode extNode in topNode.ChildNodes )

{

if( extNode.Name == "Extensions" )

extens.AddRange( ParseExtensions( extNode ) );

}

}


}


private ArrayList ParseExtensions( XmlNode extenNode )

{

ArrayList extens = new ArrayList();

foreach( XmlNode node in extenNode.ChildNodes )

{

if( node.Name.ToLower() == "extension" )

{

InternalExtension extension = new InternalExtension();

// Look for optional "group" and "maxoccurs" attributes

if( node.Attributes["group"] != null )

extension.GroupName = node.Attributes["group"].Value;

foreach( XmlNode child in node.ChildNodes )

{

if( child.Name.ToLower() == "name" )

extension.Name = child.InnerText;

if( child.Name.ToLower() == "number" )

extension.ExtensionNumber = child.InnerText;

}


}

return extens;

}



forgive me if there are syntax or mismatching braces i just copied and
cleaned up the code for simplicity, otherwise it would be two pages long and
hard to understand.

HTH