I am trying to enable the intellisense for aspx file types. I checked auto list members in the texteditor options. Either checking hide advanced members or not makes no diff
Out of the box, IntelliSense should be enabled for ASP.NET, including .aspx files. If it stopped working you have a couple of options, listed below. Try the first or second, and only if nothing else works, try the last option.
You can try this from the Visual Studio menu: Edit > IntelliSense > Refresh Local Cache
Delete the files in this folder: %AppData%\Roaming\Microsoft\VisualStudio\10.0\ReflectedSchemas
and restart Visual Studio
If nothing else works, you type this in the Visual Studio Command Prompt (this is in your Start menu) and hit enter: devenv /resetuserdata
This last option is documented here on MSDN, with the following disclaimer:
Disclaimer: you will lose all your environment settings and customizations if you use this switch. It is for this reason that this switch is not officially supported and Microsoft does not advertise this switch to the public (you won't see this switch if you type devenv.exe /? in the command prompt). You should only use this switch as the last resort if you are experiencing an environment problem, and make sure you back up your environment settings by exporting them before using this switch.