Implementing interfaces

Interfaces are a way of connecting different types together to make new things. Think of them like the studs on top of LEGO™ bricks that allow them to "stick" together, or electrical standards for plugs and sockets.

If a type implements an interface, then it is making a promise to the rest of .NET that it supports a certain feature.

Common interfaces

Here are some common interfaces that your types might want to implement:

Interface	Method(s)	Description
IComparable	CompareTo(other)	This defines a comparison method that a type implements to order or sort its instances.
IComparer	Compare(first, second)	This defines a comparison method that a secondary type implements to order or sort instances of a primary type.
IDisposable	Dispose()	This defines a disposal method to release unmanaged resources more efficiently than waiting for a finalizer.
IFormattable	ToString(format, culture)	This defines a culture-aware method to format the value of an object...