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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...DNN 4.5.3 JavaScript Issue I ThinkDNN 4.5.3 JavaScript Issue I Think
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5/8/2008 9:42 PM
 
Frank K

Joined: 11/6/2006
Posts: 185

I have buit a simple  custom module that allows a user to click a calendar date in order to stream a file to his/her browser. I use the code below to stream the file.

The streaming works well and all, but if for instance I select 'Logout' after the file is downloaded, instead of logging out it wants to stream the file again. And the same thing occurs if I want to change the to another month in the calendar. If I browse to the Home page then I can logout successfully or return to the page to switch months in the calendar.

 

 

 

 

 

 

 

System.Web.HttpContext.Current.Response.Clear();System.Web.HttpContext.Current.Response.ClearHeaders();System.Web.HttpContext.Current.Response.ClearContent();System.Web.HttpContext.Current.Response.AddHeader("Content-disposition", "attachment; filename=" + fileName);System.Web.HttpContext.Current.Response.ContentType = "application/pdf";System.Web.HttpContext.Current.Response.BinaryWrite(results);HttpContext.Current.ApplicationInstance.CompleteRequest();
 
New Post
5/9/2008 10:10 AM
 
Frank K

Joined: 11/6/2006
Posts: 185

Anyone?

Essentially, after the file is streamed to the browser, in order to have the logout button or calendar work correctly, I have to post back to the server at least once.
 
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5/9/2008 11:07 AM
 
Frank K

Joined: 11/6/2006
Posts: 185

Hmmm... this morning the logout button now works. The calendar however still behaves the same way.
 
New Post
5/9/2008 11:36 AM
 
Scott Stokes

www.adverageous.com
Joined: 4/25/2003
Posts: 110

This is code used in my filemanager for downloading.  It's modified from DNN core filedownload, which was modified from the DNN 2.x version of my filemanager before the re-write.  I know I tried several other methods for sending the file to the client, and this so far seems to work best.

Dim objResponse As HttpResponse = HttpContext.Current.Response
objResponse.ClearContent()
objResponse.ClearHeaders()
objResponse.AppendHeader("content-disposition", "attachment; filename=""" + finfo.Name + """")
objResponse.AppendHeader("Content-Length", finfo.Length.ToString())
objResponse.ContentType = strGetContentType(finfo.Extension)

Dim fileStream As Stream = Nothing
fileStream = New FileStream(finfo.FullName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)

Dim objStream As IO.Stream = fileStream
Try
 WriteStream(objResponse, objStream)
Catch ex As Exception

  objResponse.Write("Error : " & ex.Message)

Finally
 If IsNothing(objStream) = False Then
        ' Close the file.
         objStream.Close()
         End If
End Try

 objResponse.Flush()
        objResponse.End()


 
 
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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...DNN 4.5.3 JavaScript Issue I ThinkDNN 4.5.3 JavaScript Issue I Think


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