Is there a way to turn off intellisense in Visual Studio 2008? I know about deleting a DLL to turn off intellisense in C++, but that doesn't work for C#. I also know about the preferences but that just turns off the visual display. I want to turn off ALL of intellisense so it does not scan my code at all.
Update 10/14/09: Eric was kind enough to take a look so I sent him some log info. I'll post the resolution here when we get one.
Update: updated title to reflect the changed direction of the thread
Turning off Intellisense for a single project in Visual Studio 2008
You might have extensions installed that slow Visual Studio down. For help on managing extensions to improve performance, see Change extension settings to improve performance. Similarly, you might have tool windows that slow Visual Studio down.
Visual Studio is designed to start up as quickly and efficiently as possible. However, certain Visual Studio extensions and tool windows can adversely affect startup time when they are loaded. You can control the behavior of slow extensions and tool windows in the Manage Visual Studio Performance dialog box.
Here's how to do it: Simply disable your extensions one at a time, and check to see if it made a difference. If your performance issues are obvious (E.g. files take 2 sec to open) than this should be quite easy. Disable → test → enable → disable the next one → test → etc.
The guys on the VS team looked at this for me and found a problem with intellisense. Here's their description:
"It looks like both of the files you gave me contain a part of static partial class EntityPropertyDescriptors, and I would guess that all the rest of the 500 files do too. What’s happening is that as we build up our IntelliSense cache, each time we parse one of these files, we see that it has a static class in it, and we decide to see if that static class has any extension methods. In order to look for the extension methods, we look through each method in each part to see if it’s an extension method. This causes us to reparse every file in order to see if the type has any extension methods."
They found a similar problem with VS2010 but are fixing it now. Unfortunately, they are not going to fix it in VS2008, so we are left with the workaround of putting all the partial classes into a single file. They can still be partials, but they must be in the same physical file to get around the problem.
After combining all partial classes into a single file, load time for this problem project when from 30 minutes to about 10 seconds.
Big thanks to Eric Lippert and Kevin Pilch-Bisson for helping me with this.
You need to switch off background compilation.
Here is a HowTo:
http://ira.me.uk/2008/09/01/switch-offon-visual-studio-2008-background-compilation/
Tools -> Options -> Text Editor -> C# -> Advanced -> Show live semantic errors
You will still get error underlining, but you must hit the Build button before they show up.
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