ASP.Net page returned as Content Type image/jpeg

I have an .aspx page that looks like this:
<%@ Page language="vb" Inherits="thumb" AutoEventWireup="false" CodeFile="thumb.aspx.vb" %>

And the code behind looks like this:

Public Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
 Try

  ' --- all my rendering code ---

  ' send the image to the viewer
  SendImage(outImage)
 Catch ex As Exception
  Response.Write(ex.ToString.Replace(Chr(10), "<br>"))
 End Try
End Sub 'Page_Load

Public Sub SendImage(ByVal inImage As Bitmap)
 Try
  ' set the mime type
  Response.Clear()
  Response.ContentType = "image/Jpeg"

  ' send the image to the viewer
  inImage.Save(Response.OutputStream, ImageFormat.Jpeg)
 Catch ex As Exception
  Throw New ApplicationException(ex.ToString)
 End Try
End Sub 'SendImage

In .Net 1.1 I could put a page with an image tag like this:
<img src='thumb.aspx...'>

And get the image, rendered through the code in the .aspx page. Now it doesn't work... the resulting Content Type I get is not image/Jpeg, but text/html.

Any thoughts?

You can see the broken, .Net 2.0 version here:
http://www.centurycolor.com/securebeta/thumb.aspx?Order=666666&Roll=001&Frame=DSCF0241&BW=False

and the working .Net 1.1 version here:
http://www.centurycolor.com/secure/thumb.aspx?Order=666666&Roll=001&Frame=DSCF0241&BW=False

The user/pass for both is:
century
color494

(This is a demo account and has limited access.)

I'm not getting a content-type header at all:

HTTP/1.x 200 OK
Date: Wed, 31 May 2006 18:07:14 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Length: 0

... and what's worse, I'm not getting any content.

EDIT:

See the MSDN example for saving JPEGs to an HTTP Response

Note: image/jpeg, not image/Jpeg
Response.Clear is called after Response.ContentType is set

Response.BufferOutput is set to True
Response.Flush is called after bmp.Save(...)

EDIT2: Any way you can set a breakpoint and attach a debugger?  That would allow you to see what code path is being taken, and verify that the variables have their expected values.

I think the only problem is "image/Jpeg" instead of the correct "image/jpeg".
_________
Compilr the online compiler C#, VB.NET, C, Fortran
http://thehackman.blogspot.com

It's working now, I see

Yes... thank you. I took the code out of the code-behind, and put it in the page as they did. Thanks again.

qwert231 wrote:

Yes... thank you. I took the code out of the code-behind, and put it in the page as they did. Thanks again.

Just as an FYI for the future: I prefer to use .ashx for something like this because it has less overhead than a .aspx page (an aspx page brings the entire web forms framework with it, which you're not using). To create a .ashx file in VS2005, use the "Generic Handler" template. Then return you image in the ProcessRequest method.

That's interesting. I had never heard of .ashx before.
_________
Compilr the online compiler C#, VB.NET, C, Fortran
http://thehackman.blogspot.com/">http://thehackman.blogspot.com

hackman_3vilGuy wrote:

That's interesting. I had never heard of .ashx before.

It's fairly obscure. They've existed since ASP.NET 1.0, but since Visual Studio didn't offer any support until VS2005, not many people know about them.