Element ‘system.webServer’ has invalid child element ‘rewrite’. Should I fix this, and how?

I have a number of rewrite rules for a lot of things that I did in IIS7, like removing trailing slashes, canonnical URLs, lowercase lettering, and such. IIS altered my web.config, and everything works fine on the website, like it should. But in the Visual Studio web.config, the opening <rewrite> statement is underlined in blue, and at the bottom of VS, it says that the element ‘system.webServer’ has invalid child element ‘rewrite’. But this is how IIS made it … I didn’t do this manually. Should I be concerned with this VS error, or should I just leave as be, since it’s working how it should work?

Why do script blocks grow endlessly in VS2010 Debugger when running ASP.Net page with partial postbacks?

On an ASP.Net page that uses an UpdatePanel containing various validated controls for partial postbacks, the Visual Studio 2010 script debugger window starts to show an ever growing list of “Script Block” entries which appear to be anonymous our auto-generated functions related to the controls on the panel as it is reloaded. It appears that old script blocks from previous times the panel was updated are not disposed so the list just keeps on growing, slowing down the page and the debugger, until IE is closed whereupon it can take a long time to delete the hundreds of blocks that have appeared.

asp.NET – Problems with Static Selected Style for a Selected Page on the menu

I am using asp.NET 4.0 with C# and have recently created a custom design for my local web application. I would like that when a page is selected, it has a different background colour (usually in plain html + css we just set a menu item as active). I tried using but it is not working, it stays the same colour as the others. Does any one has any experience with this?