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What are the benefits and dangers of IoC (Inversion of Control)?
What I find is that the Inversion of Control pattern (also called DI - Depenency Injection) is hard to grasp.

I can see the mechanics, but what problems does it try to solve?
IoC has is a lot of coding overhead, but I am not clear about the exact benefits.

A follow up question. Do you take IoC to Production or is it only for Testing?
I am asking because there is the risk of deploying incorrect xml configuration files. 
Does anyone ever talk abou this risk?
Trey Henlon, Jun 30, 2010
Reply 1
What problems does it try to solve?
  • Decoupling components and layers in the system
  • Alleviates a component from being responsible for managing it's dependencies
  • Swap dependency implementations in different environments.
  • Allows a component be tested through mocking of dependencies.
  • Provides a mechanism for sharing resources throughout an application.
Benefits
  • Makes it easier to test your code. Without it, the code you are testing is hard to isolate as it will be highly coupled to the rest of the system.
  • Useful when developing modular systems. You can replace components without requiring recompilation.

Do you take IoC to Production or is it only for Testing?
I certainly use it on production as well as for testing. Note that there are DI frameworks that doesn't use Xml (Ninject be one of them).


Source: 
http://stackoverflow.com/questions/3058/what-is-inversion-of-control
Robert Blixt, Jul 02, 2010
Do you have an example implementation for the same? Thanks in advance.
Jul 20, 2010
Thanks
Jun 07, 2010
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