IE6 problem with postback in asp.net

Question

Ok I gave up, I've been struggling with this problem the whole day. I would appreciate any kind of help

I have a page that contains a user control that is just a personalized dropdown list . I assign to each item the attribute onClick=__doPostBack('actrl',0).

when I click the page postback fine and I got the expected results. However in IE6 my page doesnt' change to the new values loaded from the server.

The weird thing is that when I shift + click on the link The page reload fine with all changes.

I tried to disable caching on the page but no luck.

using all this code

Response.CacheControl = "no-cache"
Response.AddHeader("Pragma", "no-cache")
Response.Expires = -1
Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1))
Response.Cache.SetCacheability(HttpCacheability.NoCache)
Page.Response.Cache.SetExpires(DateTime.Now.AddDays(-30))
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
Page.Response.Cache.SetNoServerCaching()
Page.Response.Cache.SetNoStore()
Response.Cache.SetNoStore()

Also when I debug the application I can see that the generated html to be rendred is correct, but it is not rendered.

This problem happens only in IE6.

I would appreciate any help .

Thanks

Answer 1

The problem is that IE6 is not reloading the page from the server (its just grabbing the cached copy), however on a form post IE6 SHOULD reload. Why are you adding the _doPostBack as an attribute, those should be autogenerated on any asp.net control that needs to post back.

Answer 2

the reason for that is that I need a custom dropdown list , with images and other stuff.

Answer 3

This is a known IE6 bug (#223) with magical HTTP get requests.

See the bug here: http://webbugtrack.blogspot.com/2007/09/bug-223-magical-http-get-requests-in.html

It happens when an inline event handler causes a page change in IE6.