Webservice Serialize/Deserialize

Hello,
Export_Visites is back office procedure hosted on my pc (server) that interact with SQLServer, this procedure will be called from the tablet.
I tried to use the serialization and deserialization, here is the code:

Tablet side:

tableVisite is array of object CVisite 
vis is object CVisite 
bufxml is Buffer

FOR ALL Req_Get_Visite_Non_Valide
ReadSeek(Visite,CodeVisite,Req_Get_Visite_Non_Valide.CodeVisite)
		FileToMemory(vis,Visite)
		Add(tableVisite,vis)
		
END	
FOR ALL vis OF tableVisite
	Info(vis.CodeVisite)
END
b is string 
Serialize(tableVisite,bufxml,psdXML)
b=Import_Export2.Export_Visites(bufxml)
Info(b)
Info("done")

Back office side:

PROCEDURE Export_Visites(bufferxml is Buffer)
nIdFich is int=fOpen("C:\Documents and Settings\omar\Bureau\yyy\log.txt",foReadWrite)
tableVisite is array  of  object CVisite 
refCodeVisite is object CVisite 
Deserialize(tableVisite,bufferxml,psdXML)
fWrite(nIdFich,bufferxml+"/////////////////"+tableVisite..Occurrence)
fClose(nIdFich)
FOR ALL refCodeVisite OF tableVisite
	Visite.CodeCompagne=refCodeVisite.refCodeCompagne.CodeCompagne
	Visite.CodeOperateur=refCodeVisite.refCodeOperateur.CodeOperateur
	Visite.CodeVerger=refCodeVisite.refCodeVerger.CodeVerger
	Visite.CodeVisite=refCodeVisite.CodeVisite
	Visite.Date_Visite=refCodeVisite.Date_Visite..Date
	Visite.Fonction=refCodeVisite.Fonction
	Visite.Objectife=refCodeVisite.Objectife
	Visite.Presence_De=refCodeVisite.Presence_De
	Visite.Visite_Valide=refCodeVisite.Visite_Valide
	HAdd(Visite)
END

RESULT tableVisite..Occurrence

What i find the file log.txt (buffer contents):

<?xml version="1.0"?>
<DOCUMENT xmlnsOAP_ENC="[schemas.xmlsoap.org];
	<tableVisite SOAP_ENC:arrayType="tableVisite[1]">
		<item>
<ns1:CVisite xmlns:ns1="urn:Import_Export2"><ns1:refCodeCompagne xmlns:ns1="urn:Import_Export2"><CodeCompagne>2</CodeCompagne><Libelle>Compagne11/12</Libelle><Active>1</Active><Debut>2011-01-01T00:00:00.000</Debut><Fin_Compagne>2012-01-01T00:00:00.000</Fin_Compagne></ns1:refCodeCompagne><ns1:refCodeOperateur xmlns:ns1="urn:Import_Export2"><CodeOperateur>1</CodeOperateur><Nom>ahmed soussi</Nom><Pass>123</Pass><Tel>0661659530</Tel><Adresse>N°18 rue 500 les roses les amicales Casablanca</Adresse><Email>
 omar.el@gmail.com</Email><Actif>1</Actif></ns1:refCodeOperateur><ns1:refCodeVerger xmlns:ns1="urn:Import_Export2"><CodeVerger>221</CodeVerger><Ref>Y</Ref><Nom>Nahda</Nom><Superficie>53</Superficie><Certifier>1</Certifier><Actif>1</Actif></ns1:refCodeVerger><CodeVisite>12102011</CodeVisite><Date_Visite>2012-10-20T00:00:00.000</Date_Visite><Fonction>ttttttt</Fonction><Objectife>1</Objectife><Presence_De>tttt</Presence_De><Visite_Valide>true</Visite_Valide></ns1:CVisite>
		</item>
	</tableVisite>
</DOCUMENT>

tableVisite .. Occurrence returns 2, but I can not browse the table,i think the problem comes from Deserialize, what you thinnk?
Thank you in advance.