It's really annoying that visual studio hides typos in aspx pages (not the code behind). If the compiler would compile them, I would get a compile error.
5 Answers
Compile the pages at compile time. See Mike Hadlow's post here:
http://mikehadlow.blogspot.com/2008/05/compiling-aspx-templates-using.html
Comments
Resharper will catch errors in code ofASPX pages, all without compiling. works well imo, and better than later compiling.
EDIT: Resharper also has a Solution wide error checker. 'Resharper->Windows->Errors in solution'. It will analyze your entire solution and give a consolidated list of everything it finds, INCLUDING aspx files.
4 Comments
It is my belief you should always compile ASP.NET applications. There are a few instances where my clients requested otherwise. In Visual Studio, when you choose to publish your website, there is an option to have it compiled. Here is Microsoft's MSDN article which offers their information on compiling sites.
http://msdn.microsoft.com/en-us/library/ms178466.aspx
HTML issues and such will show up as "warnings" and not errors. So, you'll have to check the logs.
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There is the possibility to precompile the whole web: usually the pages only get compiled, if they are used.
To precompile the web, please refer to MSDN