diff --git a/xflaim/csharp/sample/sample.cs b/xflaim/csharp/sample/sample.cs
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+//------------------------------------------------------------------------------
+// Desc:	Sample program
+//------------------------------------------------------------------------------
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using xflaim;
+
+namespace sample
+{
+	public class Sample
+	{
+
+		// Some global name ids to use when creating documents.
+
+		// Namespace for all elements and attributes used in this sample program.
+
+		public const string	sNamespace = "http://MyNamespace.com";
+
+		// Element and attribute names
+
+		public const string	sPersonElementName = "person";
+		public const string	sUniqueIdAttributeName = "uniqueid";
+		public const string	sNameElementName = "Name";
+		public const string	sGivenElementName = "Given";
+		public const string	sSurnameElementName = "Surname";
+		public const string	sAddressElementName = "Address";
+		public const string	sCityElementName = "City";
+		public const string	sStateElementName = "State";
+		public const string	sAgeElementName = "Age";
+		public const string	sHomePhoneElementName = "HomePhone";
+		public const string	sCellPhoneElementName = "CellPhone";
+
+		// Name ids that correspond to the element and attribute names
+
+		public uint				uiPersonElementId = 0;
+		public uint				uiUniqueIdAttributeId = 0;
+		public uint				uiNameElementId = 0;
+		public uint				uiGivenElementId = 0;
+		public uint				uiSurnameElementId = 0;
+		public uint				uiAddressElementId = 0;
+		public uint				uiCityElementId = 0;
+		public uint				uiStateElementId = 0;
+		public uint				uiAgeElementId = 0;
+		public uint				uiHomePhoneElementId = 0;
+		public uint				uiCellPhoneElementId = 0;
+
+		//-----------------------------------------------------------------------
+		// This method opens or creates the sample database.
+		//-----------------------------------------------------------------------
+		static Db createOrOpenDatabase( DbSystem dbSystem, out bool bCreatedDatabase)
+		{
+			Db			db;
+			string	sDbName = "sample.db";
+
+			// Try to open a database.  If that fails, create it.  The following
+			// example creates the database in the current directory.  However,
+			// a full or partial file name may be specified.
+			// NOTE: Multiple threads should each do their own open of the
+			// database and get back their own Db object.
+
+			try
+			{
+				db = dbSystem.dbOpen( sDbName, null, null, null, false);
+			}
+			catch (XFlaimException ex)
+			{
+				if (ex.getRCode() != RCODE.NE_XFLM_IO_PATH_NOT_FOUND)
+				{
+					throw ex;
+				}
+				db = dbSystem.dbCreate( sDbName, null, null, null, null, null);
+				bCreatedDatabase = true;
+			}
+			return( db);
+		}
+
+		//-----------------------------------------------------------------------
+		// Create name Ids for elements and attributes in the dictionary.  If
+		// we did NOT create the database, simply get the name IDs from the
+		// dictionary.  The name IDs we need to create the document illustrated in
+		// the createADocument method are as follows:
+		//
+		// 1. "person" element, namespace: "http://MyNamespace.com", data type: none
+		// 2. "uniqueid" attributet, namespace: "http://MyNamespace.com", data type: number
+		// 3. "Name" element, namespace: "http://MyNamespace.com", data type: none
+		// 4. "Given" element, namespace: "http://MyNamespace.com", data type: text
+		// 5. "Address" element, namespace: "http://MyNamespace.com", data type: none
+		// 6. "City" element, namespace: "http://MyNamespace.com", data type: text
+		// 7. "State" element, namespace: "http://MyNamespace.com", data type: text
+		// 8. "Age" element, namespace: "http://MyNamespace.com", data type: number
+		// 9. "HomePhone" element, namespace: "http://MyNamespace.com", data type: text
+		// 10. "CellPhone" element, namespace: "http://MyNamespace.com", data type: text
+		//-----------------------------------------------------------------------
+		static void createOrGetNameIds( Db db, bool bCreatedDatabase)
+		{
+			if (bCreatedDatabase)
+			{
+
+				// Assume that the definitions need to be created in the dictionary.
+
+				uiPersonElementId = db.createElementDef( sNamespace, sPersonElementName, FlmDataType.XFLM_NODATA_TYPE, 0);
+				uiUniqueIdAttributeId = db.createAttributeDef( sNamespace, sUniqueIdAttributeName, FlmDataType.XFLM_NUMBER_TYPE, 0);
+				uiNameElementId = db.createElementDef( sNamespace, sNameElementName, FlmDataType.XFLM_NODATA_TYPE, 0);
+				uiGivenElementId = db.createElementDef( sNamespace, sGivenElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+				uiSurnameElementId = db.createElementDef( sNamespace, sSurnameElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+				uiAddressElementId = db.createElementDef( sNamespace, sAddressElementName, FlmDataType.XFLM_NODATA_TYPE, 0);
+				uiCityElementId = db.createElementDef( sNamespace, sCityElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+				uiStateElementId = db.createElementDef( sNamespace, sStateElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+				uiAgeElementId = db.createElementDef( sNamespace, sAgeElementName, FlmDataType.XFLM_NUMBER_TYPE, 0);
+				uiHomePhoneElementId = db.createElementDef( sNamespace, sHomePhoneElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+				uiCellPhoneElementId = db.createElementDef( sNamespace, sCellPhoneElementName, FlmDataType.XFLM_TEXT_TYPE, 0);
+			}
+			else
+			{
+
+				// Assume that the definitions were created when we first created the database.
+
+				uiPersonElementId = db.getElementNameId( sNamespace, sPersonElementName);
+				uiUniqueIdAttributeId = db.getAttributeNameId( sNamespace, sUniqueIdAttributeName);
+				uiNameElementId = db.getElementNameId( sNamespace, sNameElementName);
+				uiGivenElementId = db.getElementNameId( sNamespace, sGivenElementName);
+				uiSurnameElementId = db.getElementNameId( sNamespace, sSurnameElementName);
+				uiAddressElementId = db.getElementNameId( sNamespace, sAddressElementName);
+				uiCityElementId = db.getElementNameId( sNamespace, sCityElementName);
+				uiStateElementId = db.getElementNameId( sNamespace, sStateElementName);
+				uiAgeElementId = db.getElementNameId( sNamespace, sAgeElementName);
+				uiHomePhoneElementId = db.getElementNameId( sNamespace, sHomePhoneElementName);
+				uiCellPhoneElementId = db.getElementNameId( sNamespace, sCellPhoneElementName);
+			}
+		}
+
+		//-----------------------------------------------------------------------
+		// Create the following document:
+		//
+		// <myNamespace:person xmlns:myNamespace="http://MyNamespace.com" myNamespace:uniqueid="178442">
+		//    <myNamespace:Name>
+		//	      <myNamespace:Given>Peter</myNamespace:Given>
+		//	      <myNamespace:Surname>Jones</myNamespace:Surname>
+		//	   </myNamespace:Name>
+		//    <myNamespace:Address>
+		//	      <myNamespace:City>San Francisco</myNamespace:City>
+		//	      <myNamespace:State>California</myNamespace:State>
+		//	   </myNamespace:Address>
+		//    <myNamespace:Age>37</myNamespace:Age>
+		//    <myNamespace:HomePhone>307-888-1445</myNamespace:HomePhone>
+		//    <myNamespace:CellPhone>307-612-1445</myNamespace:CellPhone>
+		//	</myNamespace:person>
+		//
+		// It is assumed that the db object has already started an update transaction.
+		//-----------------------------------------------------------------------
+		static void createADocument( Db db)
+		{
+			DOMNode	rootNode = null;
+			DOMNode	parentNode = null;
+			DOMNode	childNode = null;
+				
+			// <myNamespace:person myNamespace:uniqueid="178442">
+			rootNode = db.createRootElement( (uint)PredefinedXFlaimCollections.XFLM_DATA_COLLECTION, uiPersonElementId);
+			rootNode.setAttributeValueULong( uiUniqueIdAttributeId, 178442);
+
+			//    <myNamespace:Name>
+			parentNode = rootNode.createNode( eDomNodeType.ELEMENT_NODE, uiNameElementId, eNodeInsertLoc.XFLM_FIRST_CHILD, parentNode);
+
+			//	      <myNamespace:Given>Peter</myNamespace:Given>
+			childNode = parentNode.createNode( eDomNodeType.ELEMENT_NODE, uiGivenElementId, eNodeInsertLoc.XFLM_FIRST_CHILD, childNode);
+			childNode.setString( "Peter");
+
+			//	      <myNamespace:Surname>Jones</myNamespace:Surname>
+			childNode = parentNode.createNode( eDomNodeType.ELEMENT_NODE, uiSurnameElementId, eNodeInsertLoc.XFLM_LAST_CHILD, childNode);
+			childNode.setString( "Jones");
+
+			//    <myNamespace:Address>
+			parentNode = rootNode.createNode( eDomNodeType.ELEMENT_NODE, uiAddressElementId, eNodeInsertLoc.XFLM_LAST_CHILD, parentNode);
+
+			//	      <myNamespace:City>San Francisco</myNamespace:City>
+			childNode = parentNode.createNode( eDomNodeType.ELEMENT_NODE, uiCityElementId, eNodeInsertLoc.XFLM_FIRST_CHILD, childNode);
+			childNode.setString( "San Francisco");
+
+			//	      <myNamespace:State>California</myNamespace:State>
+			childNode = parentNode.createNode( eDomNodeType.ELEMENT_NODE, uiStateElementId, eNodeInsertLoc.XFLM_LAST_CHILD, childNode);
+			childNode.setString( "California");
+
+			//    <myNamespace:Age>37</myNamespace:Age>
+			childNode = rootNode.createNode( eDomNodeType.ELEMENT_NODE, uiAgeElementId, eNodeInsertLoc.XFLM_LAST_CHILD, childNode);
+			childNode.setUInt( 37);
+
+			//    <myNamespace:HomePhone>307-888-1445</myNamespace:HomePhone>
+			childNode = rootNode.createNode( eDomNodeType.ELEMENT_NODE, uiHomePhoneElementId, eNodeInsertLoc.XFLM_LAST_CHILD, childNode);
+			childNode.setString( "307-888-1445");
+
+			//    <myNamespace:CellPhone>307-612-1445</myNamespace:CellPhone>
+			childNode = rootNode.createNode( eDomNodeType.ELEMENT_NODE, uiCellPhoneElementId, eNodeInsertLoc.XFLM_LAST_CHILD, childNode);
+			childNode.setString( "307-612-1445");
+		}
+
+		//-----------------------------------------------------------------------
+		// Find the document that has a given name of "Peter", state of "California", and
+		// return the "Age" element from the document.  The XPATH query is as follows:
+		//
+		// person[Name/Given == "Peter" && Address/State == "California"]/Age
+		//-----------------------------------------------------------------------
+		static DOMNode queryDatabase( Db db)
+		{
+			Query	query = new Query( db, (uint)PredefinedXFlaimCollections.XFLM_DATA_COLLECTION);
+
+			// First set up the query criteria.  This method calls the Query.addXXXXX methods to
+			// set up the query.  An alternative way to set up the query criteria is to call the
+			// Query.setupQueryExpr method, which is not illustrated here.
+
+			// person
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiPersonElementId);
+
+			// [
+			query.addOperator( eQueryOperators.XFLM_LBRACKET_OP, 0);
+
+			// Name/Given
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiNameElementId);
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiGivenElementId);
+
+			// == "Peter"
+			query.addOperator( eQueryOperators.XFLM_EQ_OP, 0);
+			query.addStringValue( "Peter");
+
+			// &&
+			query.addOperator( eQueryOperators.XFLM_AND_OP, 0);
+
+			// Address/State
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiAddressElementId);
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiStateElementId);
+
+			// == "California"
+			query.addOperator( eQueryOperators.XFLM_EQ_OP, 0);
+			query.addStringValue( "California");
+
+			// ]
+			query.addOperator( eQueryOperators.XFLM_RBRACKET_OP, 0);
+
+			// /Age
+			query.addXPathComponent( eXPathAxisTypes.CHILD_AXIS, eDomNodeType.ELEMENT_NODE, uiAgeElementId);
+
+
+			// Retrieve and return the first result
+
+			return( query.getFirst( null, 0));
+		}
+
+		//-----------------------------------------------------------------------
+		// Main
+		//-----------------------------------------------------------------------
+		static void Main()
+		{
+			DbSystem dbSystem;
+			Db			db;
+			bool		bCreatedDatabase = false;
+
+			// Must first get a DbSystem object in order to do anything with an
+			// XFLAIM database.
+				
+			dbSystem = new DbSystem();
+
+			// Create or open the database
+
+			db = createOrOpenDatabase( dbSystem, out bCreatedDatabase);
+
+			// Start an update transaction.  The timeout of 255 specifies that
+			// the thread should wait forever to get the database lock.  A value
+			// of zero would specify that it should not wait. In that case, or
+			// for any value other than 255, the application should check to see
+			// if the transaction failed to start because of a lock timeout
+			// error. -- In general, the application will want to catch and
+			// check for XFlaimException exceptions.  Such checking is not
+			// shown in the following code.
+
+			db.transBegin( eDbTransType.XFLM_UPDATE_TRANS, 255, 0);
+
+			// Create a document (see createADocument above for illustration of the document as text)
+			// In order to get the document, we must first get or create the needed element and
+			// attribute name Ids in the dictionary.
+
+			createOrGetNameIds( db, bCreatedDatabase);
+
+			// Now create the document, as illustrated above.  The document is created in a collection that
+			// is automatically created when the database is created,
+			// the PredefinedXFlaimCollections.XFLM_DATA_COLLECTION
+
+			createADocument( db);
+
+			// Now we simply commit the transaction.  The document we created will be committed to
+			// the database, and the database will be unlocked.
+
+			db.transCommit();
+
+			// Find the document that has a given name of "Peter", state of "California", and
+			// return the "Age" element from the document.  The XPATH query is as follows:
+			//
+			// person[Name/Given == "Peter" && Address/State == "California"]/Age
+
+			DOMNode	node = queryDatabase( db);
+
+			// Output the age to the console.
+
+			System.Console.WriteLine( "Age = {0}", node.getUInt());
+
+			// Navigate to the cell phone element and print it out.
+
+			for (;;)
+			{
+				node = node.getNextSibling( node);
+				if (node.getNameId() == uiCellPhoneElementId)
+				{
+					System.Console.WriteLine( "Cell phone = {0}", node.getString());
+					break;
+				}
+			}
+
+		}
+	}
+}