R – My mobile site does not render on certain mobile phones. Why

asp.netmobilemobile-websitenokiabrowser

I am developing a basic mobile site in asp.NET and C# and am having problems rendering .aspx pages on certain mobile phone browsers.

I tried Stackoverflow.Mobi on a nokia looking for good examples for coding mobile sites.
As soon as I redirect to another page I receive the error "File Format Unknown."

As soon as i use the button_click event to transfer to another page the "File Format Unknown." shows up on the mobile divice.

I have tried the following as suggested fixes from numerous forums but without any luck.

  1. Setting Page contentype : ContentType="text/html"
  2. Server.Transfer
  3. Response.ContentType = "application/xhtml+xml";
    Response.Redirect("Test.aspx");
  4. Posting to the Full URL www.XXXX.com/test.aspx

One of the phones i am having problems with is a Nokia 6300

Any suggestions?

Best Answer

Normaly this is a problem with doc-type, because asp.net changes it to wap/application. I will recommend you use Fiddler for checking http headers. Normaly,Page directive ContentType should solve it

<%@ Page Language="C#" ... ContentType="text/html" %>

But you have set :-S

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