Session State in Generic Handler doesn't work in FireFox RSS

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  ESTAN

  Member

  2 Points

  12 Posts

  Session State in Generic Handler doesn't work in FireFox

  Aug 25, 2009 12:40 PM|LINK

  Hi,

  Briefly: Session State in Generic Handler doesn't work in FireFox

  Detailed: I use jquery uploadify to upload an image to the webserver. In a generic handler that implements IRequiresSessionState I store the image as a byte in an object. That object is than placed inside a Session variable that I later will pick up to store the image into the database.
  Everything goes well in Internet Explorer 8 but it fails in FireFox. The Session variable created in the generic handler is Nothing.

  Generic handler:

  <%@ WebHandler Language="VB" Class="SetFotoDemandante" %>
  
  
  Option Strict On
  
  
  Imports System.Web
  Imports CsiCom.CapaNegocio
  Imports System.IO
  
  
  ''' <summary>
  '''
  ''' </summary>
  Public Class SetFotoDemandante : Implements IHttpHandler, System.Web.SessionState.IRequiresSessionState
      
  
  	''' <summary>
  	'''
  	''' </summary>
  	''' <param name="context"></param>
  	Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
  		Dim httpFile As HttpPostedFile
  		
  
  		If (Not context.Request.Files("Filedata") Is Nothing) Then
  			httpFile = context.Request.Files("Filedata")
  			
  
  			Dim iFileLength As Integer = httpFile.ContentLength
  		
  
  			If (iFileLength <> 0) Then
  				' Save in to a foto object.
  				Dim baInput(iFileLength) As Byte
  				httpFile.InputStream.Read(baInput, 0, iFileLength)
  				
  
  				Dim negObjFotoDemandante As New Neg_ObjFotoDemandante()
  				negObjFotoDemandante.Foto = baInput
  				negObjFotoDemandante.FileName = httpFile.FileName
  				negObjFotoDemandante.FileExtension = New FileInfo(httpFile.FileName).Extension
  				negObjFotoDemandante.ContentType = httpFile.ContentType
  				
  
  				' Save in Session, this session will be picked up later.
  				context.Session.Item("negObjFotoDemandante") = negObjFotoDemandante
  
  
  				context.Response.Write("1")
  			End If
  		End If
  	End Sub
  	
  
  	''' <summary>
  	'''
  	''' </summary>
  	''' <value></value>
  	''' <returns></returns>
  	Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
  		Get
  			Return False
  		End Get
  	End Property
  
  
  End Class

  
  The code behind that fails in Firefox:

  Protected Sub imgbtnHbtnCompleteFotoUpload_Click(ByVal sender As Object, ByVal e As EventArgs)
  		' Load session
  		If (Session.Item("negObjFotoDemandante") Is Nothing) Then
  			ShowPrompt("Failed to insert the photo.<br/><br/>Error message: A session problem occured.")
  			Exit Sub
  		End If
  ...
  

  
  

  Can anyone help me out finding this odd problem?