How to prevent Error List Window from showing up within Visual Studio ASP.NET Editor?

Any errors or warnings wi开发者_StackOverflowthin the markup pops up the window and it reminds me VB6 error message box, stealing the focus and concentration.

Quite an eyesore.

Is there a way to prevent the Error List window from showing up while editing ASP.NET markups?

At least with the other IDE settings (i.e. C#/Windows, not ASP.NET), you can just hide or close the error list and have it pop up on each compile.