Help with SelectSingleNode, XML and C#
I have the following SOAP response:

    <?xml version="1.0" encoding="utf-8"?>
    <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
    
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    
    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
    <ABRSearchByABNResponse xmlns="http://abr.business.gov.au/ABRXMLSearch/">
    <ABRPayloadSearchResults>
    <request>
    	<identifierSearchRequest>
    		<identifierType>ABN</identifierType>
    		<identifierValue>79 142 357 604</identifierValue>
    	</identifierSearchRequest>
    </request>
    <response>
    	<dateRegisterLastUpdated>2011-04-26</dateRegisterLastUpdated>
    	<dateTimeRetrieved>2011-04-26T14:10:17.8169921+10:00</dateTimeRetrieved>
    	<businessEntity>
    		<recordLastUpdatedDate>2010-03-05</recordLastUpdatedDate>
    		<ABN>
    			<identifierValue>79142357604</identifierValue>
    			<isCurrentIndicator>Y</isCurrentIndicator>
    			<replacedIdentifierValue xsi:nil="true" />
    			<replacedFrom>0001-01-01</replacedFrom>
    		</ABN>
    		<entityStatus>
    			<effectiveTo>0001-01-01</effectiveTo>
    		</entityStatus>			
    		<entityType>
    			<entityTypeCode>PUB</entityTypeCode>
    		</entityType>
    		<mainBusinessPhysicalAddress>
    			<stateCode>NSW</stateCode>
    			<postcode>2000</postcode>
    		</mainBusinessPhysicalAddress>
    		</businessEntity>
    </response>
    </ABRPayloadSearchResults>
    </ABRSearchByABNResponse>
    </soap:Body>
    </soap:Envelope>

What I am trying to get is the entityTypeCode but I have no success. I tried with

    XmlDocument xDoc = new XmlDocument();
    xDoc.LoadXml(searchPayload);

    
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(xDoc.NameTable);
    nsmgr.AddNamespace("c", "http://abr.business.gov.au/ABRXMLSearch/");

    XmlNode entityTypeCode = xDoc.SelectSingleNode("//entityTypeCode", nsmgr);
and various xpath expressions but it the xmlnode entityTypeCode is always null.

Suggestions?

Thanks in advance.
Help with SelectSingleNode, XML and C#
===

I have the following SOAP response:

    <?xml version="1.0" encoding="utf-8"?>
    <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
    
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    
    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
    <ABRSearchByABNResponse xmlns="http://abr.business.gov.au/ABRXMLSearch/">
    <ABRPayloadSearchResults>
    <request>
    	<identifierSearchRequest>
    		<identifierType>ABN</identifierType>
    		<identifierValue>79 142 357 604</identifierValue>
    	</identifierSearchRequest>
    </request>
    <response>
    	<dateRegisterLastUpdated>2011-04-26</dateRegisterLastUpdated>
    	<dateTimeRetrieved>2011-04-26T14:10:17.8169921+10:00</dateTimeRetrieved>
    	<businessEntity>
    		<recordLastUpdatedDate>2010-03-05</recordLastUpdatedDate>
    		<ABN>
    			<identifierValue>79142357604</identifierValue>
    			<isCurrentIndicator>Y</isCurrentIndicator>
    			<replacedIdentifierValue xsi:nil="true" />
    			<replacedFrom>0001-01-01</replacedFrom>
    		</ABN>
    		<entityStatus>
    			<effectiveTo>0001-01-01</effectiveTo>
    		</entityStatus>			
    		<entityType>
    			<entityTypeCode>PUB</entityTypeCode>
    		</entityType>
    		<mainBusinessPhysicalAddress>
    			<stateCode>NSW</stateCode>
    			<postcode>2000</postcode>
    		</mainBusinessPhysicalAddress>
    		</businessEntity>
    </response>
    </ABRPayloadSearchResults>
    </ABRSearchByABNResponse>
    </soap:Body>
    </soap:Envelope>

What I am trying to get is the entityTypeCode but I have no success. I tried with

    XmlDocument xDoc = new XmlDocument();
    xDoc.LoadXml(searchPayload);

    
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(xDoc.NameTable);
    nsmgr.AddNamespace("c", "http://abr.business.gov.au/ABRXMLSearch/");

    XmlNode entityTypeCode = xDoc.SelectSingleNode("//entityTypeCode", nsmgr);
and various xpath expressions but it the xmlnode entityTypeCode is always null.

Suggestions?

Thanks in advance.