hyperlink image fires twice with smartnav on

[vMike]

I have a hyperlink control. The image is dynamically set to an aspx file.
The image changes based on criteria passed to it on postback. I have noticed
that when smartnavigation is turned on the aspx file is accessed twice
before the picture displays in the browser. When it is turned off it is only
accessed once. I have other image file which are not aspx files on the page.
Does smartnavigation call all image files twice? Or is there something I
should be doing differently with smart nav on. The pages don't flicker as
much with in on so I would like to leave it on but it seems that if all
images are called twice there must be a performance drag.
Mike

 

[Ezra Epstein]

What do you mean when you write "The image is dynamically set to an aspx
file."? To my understanding .aspx files are for entire asp.net pages. How
does this file return an image?

EE

 

[vMike]

My image aspx file is only code with no controls. The code uses the
following to return a certain image plus text of a specified size and
quality based querystring parameters.

Sub Page_Load...
..
..bunch of code here.

mynewimage.Save(Response.OutputStream, ImageFormat.Jpeg)
end Sub

but the file gets called twice.