I was looking for a clean way to conditionally show a block of html and came across this post

It oulines a really clean way to conditionally render a partial view while avoiding having if/else logic directly in your view.

I have been doing some work on a asp.net webforms website that has been "upgraded" to also include the mvc bits.  One issue I ran into was an error when trying to create a strongly typed view.  I was receiving the below exception:

Parser Error Message: Could not load type 'System.Web.Mvc.ViewPage<MyViewModel>'.

I also was not getting intellisense in my View page when trying to access the Model property.

It sounds like this relates to dll references, and I found the solution at the below link.  

What I did to resolve was to create a new MVC project and then copy the web.config from the Views directory to my older webforms website.  That did the trick...

http://forums.asp.net/p/1378448/2908692.aspx

If you are having issue getting an asp.net MVC web site running on a server with IIS 7 you should check your web.config settings.  I tried a variety of things, searched around the net, and finally found what I was looking for.

After some trial and error, I found that in order for things to work in IIS7 you need the below entries in your web.config, in the system.Webserver section within modules and handlers (leave other items that may already be there). 

<modules runAllManagedModulesForAllRequests="true" >
                <remove name="UrlRoutingModule"/>
                <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            </modules>
            <handlers>
                <add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
            </handlers>

I found the below articles to be very helpful in troubleshooting the issue I was having.

 http://chriscavanagh.wordpress.com/2008/03/11/aspnet-routing-goodbye-url-rewriting/