Defines a mechanism for retrieving a service object; that is, an object that provides custom support to other objects.
public interface IServiceProvider
This interface is implemented by a class or value type that provides a service to other objects.
The GetService method of this interface obtains the object that provides the service.
The IServiceProvider interface is implemented by a number of types, including System.Web.HttpContext, System.ComponentModel.LicenseContext, System.ComponentModel.MarshalByValueComponent, and System.ComponentModel.Design.ServiceContainer.
Gets the service object of the specified type.