/// <include file='doc\XmlNode.uex' path='docs/doc[@for="XmlNode.SelectSingleNode1"]/*' />
/// <devdoc>
/// <para>Selects the first node that matches the xpath expression and given namespace context.</para>
/// </devdoc>
public XmlNode SelectSingleNode( string xpath, XmlNamespaceManager nsmgr ) {
XPathNavigator xn = (this).CreateNavigator();
XPathExpression exp = xn.Compile(xpath);
exp.SetContext(nsmgr);
try {
XmlNodeList list = new XPathNodeList( xn.Select(exp) );;
return list[0];
}
catch( ArgumentOutOfRangeException ) {
return null;
}
}
// Selects the first node that matches the xpath expression and given namespace context.
public XmlNode SelectSingleNode( string xpath, XmlNamespaceManager nsmgr ) {
XPathNavigator xn = (this).CreateNavigator();
//if the method is called on node types like DocType, Entity, XmlDeclaration,
//the navigator returned is null. So just return null from here for those node types.
if( xn == null )
return null;
XPathExpression exp = xn.Compile(xpath);
exp.SetContext(nsmgr);
XmlNodeList list = new XPathNodeList( xn.Select(exp) );;
if( list.Count > 0 )
return list[0];
else
return null;
}
public XmlNodeListEnumerator(XPathNodeList list)
{
_list = list;
_index = -1;
_valid = false;
}
public XmlNodeListEnumerator(XPathNodeList list)
{
this.list = list;
this.index = -1;
this.valid = false;
}