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From Bytes to actual Image displayed on page

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ASPNETnewbie

Programmer
May 9, 2006
93
US
Below is my code for a USPS Address Validator and Label Generator but the problem is it does not seem to be working at all and I can not seem to figure out what the problem is. For some reason... I can basically build and debug with no problem but when information is entered, nothing else happens. Can anyone else help?


Thanks in Advance

DOTNETNEWBIE

Code:
Imports System
Imports System.Data
Imports System.Configuration
Imports System.Collections
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Net
Imports System.IO
Imports System.Collections.Generic
Imports System.Text
Imports System.Drawing
Imports System.Xml
Imports System.Web.SessionState


Partial Class _Default
    Inherits System.Web.UI.Page


    Private PID As String = "12"
    Private _userid As String = "126NONE05575"
    Private Const ProductionUrl As String = "[URL unfurl="true"]http://production.shippingapis.com/ShippingAPI.dll"[/URL]
    Private TestingUrl As String = "[URL unfurl="true"]http://testing.shippingapis.com/ShippingAPITest.dll"[/URL]
    Private _TestMode As Boolean = true
    Private ToFirmNames As String
    Private ToAddress1s As String
    Private ToAddress2s As String
    Private ToCitys As String
    Private ToStates As String
    Private ToZips As String
    Private ToZip4s As String
    Dim addressxml As String
    Private package As Package = New Package()



    Protected Sub Wizard1_FinishButtonClick(ByVal sender As Object, ByVal e As WizardNavigationEventArgs)
        ValidateAddress()

    End Sub
    Dim url As String = ProductionUrl
    Private ReadOnly Property GetURL()
        Get
            If (TestMode) Then
                url = TestingUrl
            End If
            Return url
        End Get
    End Property


    Public Property TestMode()
        Get
            Return _TestMode
        End Get
        Set(ByVal value)
            _TestMode = value
        End Set
    End Property

    Public Sub ValidateAddress()

        Dim validateUrl As String = "?API=Verify&XML=<AddressValidateRequest USERID=""{0}""><Address ID=""{1}""><Address1>{2}</Address1><Address2>{3}</Address2><City>{4}</City><State>{5}</State><Zip5>{6}</Zip5><Zip4>{7}</Zip4></Address></AddressValidateRequest>"
        Dim url As String = GetURL()
        url = String.Format(url, _userid, PID, ToAddress1.Text, ToAddress2.Text, ToCity.Text, ToState.Text, Tozipp.Text, ToZip2.Text)

        Try
            Dim myReq As HttpWebRequest
            ' Create the web request   
            myReq = DirectCast(WebRequest.Create(url), HttpWebRequest)
            myReq.Method = "POST"
            myReq.ContentType = "application/x-[URL unfurl="true"]www-form-urlencoded"[/URL]
            Dim Resp As HttpWebResponse
            ' Get response   
            Resp = DirectCast(myReq.GetResponse(), HttpWebResponse)
            Dim reader As StreamReader
            ' Get the response stream into a reader   
            reader = New StreamReader(Resp.GetResponseStream())
            addressxml = reader.ReadToEnd()
            resp.Close()
            reader.Close()

            If (addressxml.Contains("<Error>")) Then

                Dim idx1 As Integer = addressxml.IndexOf("<Description>") + 13
                Dim idx2 As Integer = addressxml.IndexOf("</Description>")
                Dim l As Integer = addressxml.Length
                Dim errDesc As String = addressxml.Substring(idx1, idx2 - idx1)
                Updatelabel.Text = errDesc
                Wizard1.ActiveStepIndex = 1 'send userback to page where the problem most exists

            Else 'else continue to process it
                Updatelabel.Text = "Address was successfully Validated"
                FromXml(addressxml)
                'Decide what type of label to print 
                If (LabelType.SelectedIndex = 1) Then
                    GetSignatureConfirmationLabel() 'go ahead and call for label to be printed
                Else
                    GetDeliveryConfirmationLabel() 'go ahead and call for label to be printed
                End If
            End If

        Catch ex As Exception

            Console.WriteLine(ex)
    End Try

    End Sub
    Public Sub FromXml(ByVal xml As String)

        Dim doc As System.Xml.XmlDocument = New System.Xml.XmlDocument()
        doc.LoadXml(Xml)
        Dim element As XmlNode = doc.SelectSingleNode("/AddressValidateResponse/Address/FirmName")
        If (element.Value) Then
            ToFirmNames = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/Address1")
        If (element.Value) Then
            ToAddress1s = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/Address2")
        If (element.Value) Then
            ToAddress2s = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/City")
        If (element.Value) Then
            ToCitys = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/State")
        If (element.Value) Then
            ToStates = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/Zip5")
        If (element.Value) Then
            ToZips = element.InnerText
        End If
        element = doc.SelectSingleNode("/AddressValidateResponse/Address/Zip4")
        If (element.Value) Then
            ToZip4s = element.InnerText
        End If

    End Sub

    Private Sub Setinfo()

        package.LabelType = CType(LabelType.SelectedIndex, LabelType)
        package.WeightInOunces = Int32.Parse(weight.Text)
        package.ServiceType = CType(Servicetype.SelectedIndex, ServiceType)
        'package.SeparateReceiptPage
        package.OriginZipcode = OriginZip.Text
        package.LabelImageType = CType(imagetype.SelectedIndex, LabelImageType)
        package.ReferenceNumber = Referencenum.Text
        If (AddressService.SelectedIndex = 1) Then
            package.AddressServiceRequested = True
        Else
            package.AddressServiceRequested = False
            package.PackageType = CType(PackageType.SelectedIndex, PackageType)
            package.PackageSize = CType(Packagesize.SelectedIndex, PackageSize)
        End If
    End Sub
    ' <summary>
    ' Fills a package's ShippingLabel with a Byte{} containing the Image for the label
    ' </summary>
    ' <param name="package">Package with From and To addresses provided</param>
    '<returns>The same package with the ShippingLabel</returns>

    Public Sub GetSignatureConfirmationLabel()

        Dim url As String = "?API=SignatureConfirmationV3&XML=<SignatureConfirmationV3.0Request USERID=""{0}""><Option>{1}</Option><ImageParameters></ImageParameters><FromName>{2}</FromName><FromFirm>{3}</FromFirm><FromAddress1>{4}</FromAddress1><FromAddress2>{5}</FromAddress2><FromCity>{6}</FromCity><FromState>{7}</FromState><FromZip5>{8}</FromZip5><FromZip4>{9}</FromZip4><ToName>{10}</ToName><ToFirm>{11}</ToFirm><ToAddress1>{12}</ToAddress1><ToAddress2>{13}</ToAddress2><ToCity>{14}</ToCity><ToState>{15}</ToState><ToZip5>{16}</ToZip5><ToZip4>{17}</ToZip4><WeightInOunces>{18}</WeightInOunces><ServiceType>{19}</ServiceType><POZipCode>{20}</POZipCode><ImageType>{21}</ImageType><LabelDate>{22}</LabelDate><CustomerRefNo>{23}</CustomerRefNo><AddressServiceRequested>{24}</AddressServiceRequested></SignatureConfirmationV3.0Request>"
        url = GetURL() + url
        url = String.Format(url, _userid, CType(package.LabelType, Integer), fromFirstName.Text + " " + fromFirstName.Text, FromFirm.Text, FromAddress1.Text, FromAddress2.Text, FromCity.Text, FromState.Text, Fromzip.Text, FromZip2.Text, ToFirstName.Text + " " + ToLastName.Text, ToFirmNames, ToAddress1s, ToAddress2s, ToCitys, ToStates, ToZips, ToZip4s, package.WeightInOunces.ToString(), package.ServiceType.ToString().Replace("_", " "), package.OriginZipcode, package.LabelImageType.ToString(), package.ShipDate.ToShortDateString(), package.ReferenceNumber, package.AddressServiceRequested.ToString())
        Try


            Dim myReq As HttpWebRequest
            ' Create the web request   
            myReq = DirectCast(WebRequest.Create(url), HttpWebRequest)
            myReq.Method = "POST"
            myReq.ContentType = "application/x-[URL unfurl="true"]www-form-urlencoded"[/URL]
            Dim Resp As HttpWebResponse

            ' Get response   
            Resp = DirectCast(myReq.GetResponse(), HttpWebResponse)
            Dim reader As StreamReader

            ' Get the response stream into a reader   
            reader = New StreamReader(Resp.GetResponseStream())
            Dim xml As String = reader.ReadToEnd()
            Resp.Close()
            reader.Close()
            'since xml is global a separate call will send the information to session then 
            If (xml.Contains("<Error>")) Then

                Dim idx1 As Integer = xml.IndexOf("<Description>") + 13
                Dim idx2 As Integer = xml.IndexOf("</Description>")
                Dim l As Integer = xml.Length
                Dim errDesc As String = xml.Substring(idx1, idx2 - idx1)
                Updatelabel.Text = errDesc
                Wizard1.ActiveStepIndex = 1

            Else
                Dim i1 As Integer = xml.IndexOf("<SignatureConfirmationLabel>") + 28
                Dim i2 As Integer = xml.IndexOf("</DeliveryConfirmationLabel>")
                package.ShippingLabel = StringToUTF8ByteArray(xml.Substring(i1, i2 - i1)) 'byte information returned from the decoding
                'is sent to the method to save it to session
                SaveBytesToSession(package.ShippingLabel)

            End If
        Catch ex As Exception

            Console.WriteLine(ex)
        End Try
    End Sub

    Private Sub SaveBytesToSession(ByVal byteArr As Byte())

        ' ------------------------------------------------------------------------
        ' Store the Label image in Session to be picked up by an HttpHandler later
        ' ------------------------------------------------------------------------
        Dim ctx As HttpContext = HttpContext.Current
        Dim imageID As String = Guid.NewGuid().ToString()

        ctx.Session(imageID) = byteArr
        LabelImg.ImageUrl = String.Concat("Shiplabel.ashx?", imageID)

    End Sub

    Public Sub GetDeliveryConfirmationLabel()

        Dim labeldate As String = package.ShipDate.ToShortDateString()

        Dim url As String = "?API=DeliveryConfirmationV3&XML=<DeliveryConfirmationV3.0Request USERID=""{0}""><Option>{1}</Option><ImageParameters></ImageParameters><FromName>{2}</FromName><FromFirm>{3}</FromFirm><FromAddress1>{4}</FromAddress1><FromAddress2>{5}</FromAddress2><FromCity>{6}</FromCity><FromState>{7}</FromState><FromZip5>{8}</FromZip5><FromZip4>{9}</FromZip4><ToName>{10}</ToName><ToFirm>{11}</ToFirm><ToAddress1>{12}</ToAddress1><ToAddress2>{13}</ToAddress2><ToCity>{14}</ToCity><ToState>{15}</ToState><ToZip5>{16}</ToZip5><ToZip4>{17}</ToZip4><WeightInOunces>{18}</WeightInOunces><ServiceType>{19}</ServiceType><POZipCode>{20}</POZipCode><ImageType>{21}</ImageType><LabelDate>{22}</LabelDate><CustomerRefNo>{23}</CustomerRefNo><AddressServiceRequested>{24}</AddressServiceRequested><SenderName>{25}</SenderName><SenderEMail>{26}</SenderEMail><RecipientName>{27}</RecipientName><RecipientEMail>{28}</RecipientEMail></DeliveryConfirmationV3.0Request>"
        url = GetURL() + url
        'url = String.Format(url,this._userid, (int)package.LabelType, package.FromAddress.Contact, package.FromAddress.FirmName, package.FromAddress.Address1, package.FromAddress.Address2, package.FromAddress.City, package.FromAddress.State, package.FromAddress.Zip, package.FromAddress.ZipPlus4, package.ToAddress.Contact, package.ToAddress.FirmName, package.ToAddress.Address1, package.ToAddress.Address2, package.ToAddress.City, package.ToAddress.State, package.ToAddress.Zip, package.ToAddress.ZipPlus4, package.WeightInOunces.ToString(), package.ServiceType.ToString().Replace("_", " "), package.OriginZipcode, package.LabelImageType.ToString(), labeldate, package.ReferenceNumber, package.AddressServiceRequested.ToString(),  package.FromAddress.Contact, package.FromAddress.ContactEmail, package.ToAddress.Contact, package.ToAddress.ContactEmail)
        url = String.Format(url, _userid, CType(package.LabelType, Integer), fromFirstName.Text + " " + fromFirstName.Text, FromFirm.Text, FromAddress1.Text, FromAddress2.Text, FromCity.Text, FromState.Text, Fromzip.Text, FromZip2.Text, ToFirstName.Text + " " + ToLastName.Text, ToFirmNames, ToAddress1s, ToAddress2s, ToCitys, ToStates, ToZips, ToZip4s, package.WeightInOunces.ToString(), package.ServiceType.ToString().Replace("_", " "), package.OriginZipcode, package.LabelImageType.ToString(), labeldate, package.ReferenceNumber, package.AddressServiceRequested.ToString(), "", "", "", "")

        Try

            Dim myReq As HttpWebRequest
            ' Create the web request   
            myReq = DirectCast(WebRequest.Create(url), HttpWebRequest)
            myReq.Method = "POST"
            myReq.ContentType = "application/x-[URL unfurl="true"]www-form-urlencoded"[/URL]
            Dim Resp As HttpWebResponse

            ' Get response   
            Resp = DirectCast(myReq.GetResponse(), HttpWebResponse)
            Dim reader As StreamReader

            ' Get the response stream into a reader   
            reader = New StreamReader(Resp.GetResponseStream())
            Dim xml As String = reader.ReadToEnd()
            Resp.Close()
            reader.Close()

            If (xml.Contains("<Error>")) Then

                Dim idx1 As Integer = xml.IndexOf("<Description>") + 13
                Dim idx2 As Integer = xml.IndexOf("</Description>")
                Dim l As Integer = xml.Length
                Dim errDesc As String = xml.Substring(idx1, idx2 - idx1)
                Updatelabel.Text = errDesc
                Wizard1.ActiveStepIndex = 1 'send user back to the page where the problem most

            Else ' only execute if there was no error

                Dim i1 As Integer = xml.IndexOf("<DeliveryConfirmationLabel>") + 27
                Dim i2 As Integer = xml.IndexOf("</DeliveryConfirmationLabel>")
                package.ShippingLabel = StringToUTF8ByteArray(xml.Substring(i1, i2 - i1))

                 SaveBytesToSession(package.ShippingLabel)
            End If
        Catch ex As Exception

            Console.WriteLine(ex)
        End Try

    End Sub

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        'happens when page is loaded

        Service_type.Text = "Service Type: " + Servicetype.SelectedValue
        packagesizes.Text = "Package Size: " + PackageType.SelectedValue
        packagetypes.Text = "Package Type: " + PackageType.SelectedValue
        packageweight.Text = "Package Weight: " + weight.Text
        Label_type.Text = "Label Type: " + LabelType.SelectedValue
        Image_type.Text = "Image Type: " + imagetype.SelectedValue
        Originzipcode.Text = "Origin Zipcode: " + OriginZip.Text
        Address_service.Text = "Address Service: " + AddressService.SelectedValue
        waiver_sig.Text = "Waiver: " + waiver.SelectedValue
        CustomerName.Text = "Customer Name: " + fromFirstName.Text + " " + FromLast.Text
        CustomerEmail.Text = "Customer Email: " + FromEmail.Text
        CustomerPhone.Text = "Customer Phone: " + FromPhone.Text
        CustomerAddress.Text = "Customer Address " + FromAddress1.Text + " " + FromAddress2.Text + " " + FromCity.Text + " " + FromState.Text + " " + Fromzip.Text + " " + FromZip2.Text
        CustomerRef.Text = "Customer Reference Num: " + Referencenum.Text
        RecieversAddress.Text = "Reciever's Address: " + ToAddress1.Text + " " + ToAddress2.Text + " " + ToCity.Text + " " + ToState.Text + " " + Tozipp.Text + " " + ToZip2.Text
        RecieversEmail.Text = "Reciever's Email: " + ToEmail.Text
        RecieversName.Text = "Reciever's Name: " + ToFirstName.Text + " " + ToLastName.Text
        RecieversPhone.Text = "Reciever's Phone: " + ToPhone.Text

    End Sub

    '#region 
    ' <summary>
    ' To convert a Byte Array of Unicode values (UTF-8 encoded) to a complete String.
    ' </summary>
    '<param name="characters">Unicode Byte Array to be converted to String</param>
    '<returns>String converted from Unicode Byte Array</returns>
    Private Function UTF8ByteArrayToString(ByRef characters As Byte())

        Dim encoding As UTF8Encoding = New UTF8Encoding()
        Dim constructedString As String = encoding.GetString(characters)
        Return (constructedString)
    End Function

    ' <summary>
    ' Converts the String to UTF8 Byte array and is used in De serialization
    '</summary>
    ' <param name="pXmlString"></param>
    ' <returns></returns>
    Private Function StringToUTF8ByteArray(ByVal pXmlString As String)

        Dim encoding As UTF8Encoding = New UTF8Encoding()
        Dim byteArray As Byte() = encoding.GetBytes(pXmlString)
        Return byteArray
    End Function
    '#End Region

End Class


Below is the actual Handler for my code
========================================

Code:
<%@ WebHandler Language="VB" Class="ShipLabel" %>

Imports System
Imports System.Web

Public Class ShipLabel : Implements IHttpHandler
    
    Public Sub ProcessRequest(ByVal ctx As HttpContext) Implements IHttpHandler.ProcessRequest

        Dim chartID As String = ctx.Request.QueryString(0)

        ctx.ClearError()
        ctx.Response.Expires = 0
        ctx.Response.Buffer = True
        ctx.Response.Clear()

        Dim memStream As IO.MemoryStream = New IO.MemoryStream(DirectCast(ctx.Session(chartID), Byte()))
        memStream.WriteTo(ctx.Response.OutputStream)
        memStream.Close()

        ctx.Response.ContentType = "image/Jpeg"
        ctx.Response.StatusCode = 200
        ctx.Response.End()

    End Sub

    Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
        Get
            Return False
        End Get
    End Property

End Class
 
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