I try to use the xmlhttp object for improve a web form. Inside this page, is a jsscrip that collect the form's values in a xml string, send to the server and i need return back for refresh some info and other things. I can collect the xml, connect to the server, but not send the xml string. This is the code in the asp.net page:

function EnviarXML() {
// Prepare the XMLHTTP object for a HTTP POST to our validation ASP page
var sQuery="Ver=FACTURAS&Origen=factura&Id=&IdAlfa=&Titulo=Facturacion%20de%20ventas.&Seg=2&Con=1&Cod=&Filtro=&Sql=&InOut=&Ayu=";
var sURL = "http://localhost/ActiveNet/SrvActiveNET.asmx/ValidarForma?" + sQuery;
var lcXML=GenerarXML();

if (oXMLHTTP) {
}
else
{
oXMLHTTP= new ActiveXObject( "Microsoft.XMLHTTP" );
}

oXMLHTTP.open( "POST", sURL, false );//Se hace de forma asyncronica

// Define an event handler for processing
oXMLHTTP.onreadystatechange = managestatechange;
document.all.item("div1").innerhtml="Abriendo"
// Execute the request
try {
alert(lcXML);
oXMLHTTP.send(lcXML);
}
catch (e) {
alert("Ocurrio un error al intentar comunicarse al servidor.");
return false;
}
//document.all.item("div1").style.display = "none";
alert(oXMLHTTP.responseText);
return true;
}

function managestatechange() {
switch (oXMLHTTP.readyState) {
case 2, 3:
// Display a progress indicator of some kind, informing the
// user that you are checking to see if the UserID exists
//document.all.item("div1").style.display = "block";
break;
case 4:
if (oXMLHTTP.responseText == "ERROR")

alert("Fallo al conectarse al servidor. Intente mas tarde...");
//document.all.item("div1").style.display = "none";
break;
}
}

In the server, is a web service. This is the test code:
Public Function ValidarForma() As String
Dim oData As DataSet
Dim oSrv As srvConstructorFormsNET.TDataManager
Dim larrTemp(0, 0) As Object
Dim i As Integer

' Correr la consulta
Try
oSrv = New srvConstructorFormsNET.TDataManager()
oSrv.Params = srvConstructorFormsNET.srvConstructorFormsNET.TAdminForms.CargarParametros(Me.Context.Request, larrTemp, False)
srvConstructorFormsNET.TDataManager.GuardarArchivo("d:\basura\basura.txt", Me.Context.Current.Request.Form.ToString)
oData = srvConstructorFormsNET.TDataManager.StringXmlToDataSet(Me.Context.Current.Request.Form.ToString)
Catch E As Exception

Return "Error: " + E.Message
Finally
oSrv = Nothing
End Try
'Convertir a XML
Return srvConstructorFormsNET.TDataManager.DataSetToStringXML(oData, XmlWriteMode.IgnoreSchema)
End Function

An in none of the var of the request appear the XML string (i try with: Me.Context.Current.Request and Me.Context.Request, Params,Cookies,Form).

How read the xml in the server???

(P.D. I see in several ASP only example that simply do oXMlParser.Load(Request) and work, how in ASP.NET???)

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Programmer in
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