Web Forms :: URL Routing & PostBack Not Firing BeginRequest Event

Sep 13, 2010

we are having some weird issues with URL Routing in ASP.NET 3.5.

We have a search box that does a search and redirects to a routed URL.

When we search for the first time (aka Press a button that forces a postback) everythign works as expected. we get:

1. BeginRequest event.

2. Determines Route

3. Calls Routehandler to match the route item to the actual destination page

4. Routes the url appropriately.

After you do one search successfully and try again it fails to call the BeginRequest event. Because of this the routing data never gets called and so the url is never routed to its correct destination. What is weirder still if we append a "/" (trailing slash) to the url after the initial postback it DOES work properly again.

So our search route looks like this

mydomain.com/Search

entering a term and pressing the SEARCH button would yield a result url like this:

mydomain.com/Search/Results/MySearchTerm

Going back (after 1 successful search) you then need to use this url or else BeginRequest will never fire:

mydomain.com/Search/ < (note the extra "/" at the end)

why the BeginRequest event never fires unless the slash is appended?

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