How to pass objects across applications

How to pass objects across applications

• Giriraj Singh

  Hi Mike,

  I have changed my code a bit in this aspx page i am sending you that, this returns some xml code that i want to receive in my windows app but i am getting full response that an aspx page generates, can you tell me how can i get only xml code that aspx page generates.

  here is the code of aspx file.

  Protected iXmlDocument As New XmlDocument

  Protected iRoot As XmlElement

  Protected iSoapEnvelope As XmlDocument = New XmlDocument

  Protected iSoapHeader As XmlElement

  Protected iSoapBody As XmlElement

  Protected iAction As String

  Private iURL As String

  Private iCompressThreshold As Integer

  Private iSoapSchema As String = "http://schemas.xmlsoap.org/soap/envelope/"

  Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

  retStream()

  End Sub

  Public Function retStream() As XmlDocument

  iSoapEnvelope.AppendChild(iSoapEnvelope.CreateXmlDeclaration("1.0", "UTF-8", "yes"))

  'Write SOAP Envelope

  iSoapEnvelope.AppendChild(iSoapEnvelope.CreateElement("soapenv", "Envelope", iSoapSchema))

  iSoapHeader = iSoapEnvelope.CreateElement("soapenv", "Header", iSoapSchema)

  iSoapEnvelope.FirstChild.NextSibling.AppendChild(iSoapHeader)

  AddHeaderElement("action", "workloadlist")

  AddHeaderElement("sessionid", "MySession")

  CreateHeaderElements(iSoapHeader)

  iSoapBody = iSoapEnvelope.CreateElement("soapenv", "Body", iSoapSchema)

  iSoapEnvelope.FirstChild.NextSibling.AppendChild(iSoapBody)

  iXmlDocument.AppendChild(iXmlDocument.CreateElement("processX"))

  iRoot = iSoapEnvelope.CreateElement("process")

  If Not iXmlDocument Is Nothing Then

  iRoot.InnerXml = iXmlDocument.OuterXml

  End If

  iSoapBody.AppendChild(iRoot)

  CreateBodyElements(iRoot)

  Return iSoapEnvelope

  when i try to get this iSoapEnvelop in my windows code through these lines

  Dim response As HttpWebResponse = CType(iRequest.GetResponse(), HttpWebResponse)

  Dim stream As Stream = response.GetResponseStream()

  Dim sr As StreamReader

  sr = New StreamReader(stream, Encoding.UTF8)

  MsgBox(sr.ReadToEnd())

  this sr gives me compelete response that an aspx page generates whereas i just want the code in iSoapEnvelop.

  please help me in achieving that.

  Thanks for your support

  
  

• ZsoltKiraly

  I think you are misundestanding how the data generated in your retStream() function is sent over the wire. Just because you return an object from that function doesn't mean that it was written to the network as the response to the HttpWebRequest. You need to serialize the data and write it to the HttpResponse (not HttpWebResponse). In other words, in your ASPX code, you need write the data using "Response.Write()".

  
  
  

• Need the scoop

  Can you post your full snippet and stack trace What URL are you hitting Is it public facing so we can try to repro
  
  

• Rich M Turner

  Can you provide a bit more detail Are you seeing an exception

  You read the stream and there is no data If this is the case, you can use netmon or System.Net tracing to determine if data is being sent accross the wire: http://blogs.msdn.com/dgorti

  
  
  

• webguynj

  You will have to do some processing on contents of the stream to extract the pieces you are interested in.
  
  

• Ryan Yuen

  Hi Mike,

  when i try to iterate through the stream then i get this exception

  Dim response As HttpWebResponse = CType(iRequest.GetResponse(), HttpWebResponse)

  Dim stream As Stream = response.GetResponseStream()

  An unhandled exception of type 'System.NotSupportedException' occurred in system.dll

  Additional information: This stream does not support seek operations.

  Thanks

  
  
• How to pass objects across applications