Best place to put classes that extend the .net framework?

Question

I have no clue where to put the following class and I've noticed I just keep putting them in a helpers folder which isn't much helpfull towards reusability in future projects.

Example: I want to have the ability to use the DisplayNameAttribute together with resource files. In order for this to work I made a LocalizedDisplayNameAttribute which inherits the ´DisplayNameAttribute´ and adds the following properties DisplayNameResourceName and DisplayNameResourceType.

In which namespace/location would you place such a class which is likely to be reused in future projects?

Answer 1

I think the best way to do this is putting all helper classes and methods in a separate project, and then reference this project in each solution you create. Much easier than copying folders from place x to place y.

This project with all kinds of extensions, helpers etc, can be called something like "Company.Core", or similar.

Example (your attributes):

using Company.Core.Attributes;

// ....

[LocalizedDisplayNameAttribute.DisplayNameResourceName("ResourceName"),
...]
public string Example { get; set; }