Warnings at web server side

Hello,

Log of IIS 5.0 under Win 2000 Server contains the following warnings relating to PreRender of the AJAX ScriptManager:

"Exception information:
Exception type: InvalidOperationException
Exception message: Partial rendering requires a browser that supports W3C DOM Level 1.0.

Thread information:
Thread ID: 11
Thread account name: WEBSERVERA\ASPNET
Is impersonating: False
Stack trace: at Microsoft.Web.UI.ScriptManager.OnPreRender(EventArgs e)
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
"

Do you have an idea what the users see in their browsers in this case? Or please give me a hint which browser I should use to test this (I think it should be a really old one)

Regards,

Di.

Hi Di,

You are right about the browser being old. For AJAX to work the browser should support XMLHttp Object.

On your pages you can run a client script which would check for this object and display a browser compatibility issue than waiting for the page to be sent to the server.

Check this link on how to check for the object in different browsers.

http://www.w3schools.com/dom/dom_http.asp

Happy programming,
Anton

Hi Anton,

Thanks for the info.

But I still want to find out what users see in their browser in the case of such warnings. How does it affect their work with the web site...

Regards,

D.

I like your enthusiasm. You can download Multiple IE fromhttp://tredosoft.com/

which has simulator from IE 3.0 onwards.

You can also download older version of Netscape fromhttp://browser.netscape.com/ns8/download/archive.jsp

but they dont have all versions but start from 4.7 onwards

Happy programming,

Anton

Thanks. Will check 'em.