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Asked: 2026-05-15T14:09:46+00:00

Possible Duplicate: Why doesn’t VS 2008 display extension methods in Intellisense for String class

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Possible Duplicate:
Why doesn’t VS 2008 display extension methods in Intellisense for String class

Hi all.

Yesterday I noticed that Enumerable LINQ exstensions are hidden on strings (I mean hidden from the intellisense).

We all know string is an IEnumerable<char>, so automatically it should get Enumerable extensions, and actually compiles and works if you use them, but why .NET developers decided to hide them from intellisense?

And lastly, how we can hide extension methods from a specific type ?

P.S.
sorry for my poor english…

EDIT:
I forgot to say I’m targeting .net 3.5 on VS 2008

EDIT2:
Here 2 images of what happen:

Intellisense on string:

Intellisense on string http://img690.imageshack.us/img690/10/stringintelli.png

Intellisense on IEnumerable:

Intellisense on enumerable

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1 Answer

  1. Editorial Team

    When I have a string s and type s. I do get all the extensions methods (like FirstOrDefault etc).

    I checked with VS2010 Express.

    You should of course have the static class System.Linq.Enumerable in scope.

    As for the How part, I guess that something like this attribute was used on String. But clearing the “Hide advanced” option for C# brought no change, so it is not exactly this attribute but something similar.

    As for the Why part, no idea. But interesting that it was changed for Fx4

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