URL rewriting in ASP.NET turning http://example.com/abcd into http://example.com/page.aspx?id=abcd - asp.net

Question

I have a problem in my web forms ASP.NET app where I would like to rewrite a url from
http://example.com/abcd
into
http://example.com/page.aspx?id=abcd
the abcd part will be unique and I cant create a folder for it
I want the users to always see the http://example.com/abcd url
would the solution be the same in Windows Azure?
Can somebody please help me with some hints?
Thank You!

Answer 1

In your web.config, in the system.webServer section put something like this:
<!-- This has been added to support url rewriting for ... -->
<rewrite>
<rules>
<rule name="RedirectUserFriendlyURL1" stopProcessing="true">
<match url="^Page\.aspx$" />
<conditions>
<add input="{REQUEST_METHOD}" pattern="^POST$" negate="true" />
<add input="{QUERY_STRING}" pattern="^id=([a-zA-Z]+)$" />
</conditions>
<action type="Redirect" url="{C:1}" appendQueryString="false" />
</rule>
<rule name="RewriteUserFriendlyURL1" stopProcessing="true">
<match url="^([a-zA-Z]+)$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="Page.aspx?id={R:1}" />
</rule>
</rules>
</rewrite>
Please note that I have copied from the config we have in a production site and modified a little bit... needs testing.
The config should work when you have only words ([a-zA-Z]+), change the pattern to make it work for numbers.
hope it helps