How can I apply one or more attributes to all classes in a project?

Question

How can I apply an attribute to all classes in a particular project?! And is it enough to apply CLSCompliant attribute to just one class or do I have to apply to all classes?

Thanks for your answers...

Answer 1

This is the declaration for the attribute:

[SerializableAttribute]
[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets.All, Inherited = true, AllowMultiple = false)]
public sealed class CLSCompliantAttribute : Attribute

Note the [AttributeUsage]. With AttributeTargets.All, it indicates that the attribute can be applied to anything. Which includes the assembly:

[assembly:CLSCompliant(true)]

Answer 2

A project is an assembly, so you could use an assembly attribute.