By default Visual Studio displays all members and its extension methods for a type in intellisense.
Sometimes I would like to hide the extension methods to make it easier to find the member I am actually looking for (especially when using Linq).
Is there a shortcut or another way to display only the members of a type in intellisense?
Not that I'm aware of - but one thing you might want to do is get rid of the using directive for System.Linq. At that point the extension method won't be accessible, and I believe it won't be offered by Intellisense.
Obviously that's no good if you want to use LINQ from one bit of code in a class, but not in another - but for classes which aren't using LINQ at all, it might help you.
In theory you could do this with the appropriate decorator attribute*, but googling this it seems it's bugged, with the fix awaiting a service pack presumably.
* [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
Perhaps you could try using something like resharper which filters the list of methods as you type. I find this helps me to quickly get to what I need. And it will do so without hiding useful extention methods
来源：https://stackoverflow.com/questions/657573/vs-intellisense-can-you-hide-extension-methods