.NET interview questions: - Explain the steps to clean unmanaged objects and also maintain its performance?

By : Shiv Prasad Koirala | Sep 15th, 2011 | Views : 154 | Comments : 0

.NET interview questions: - Explain the steps to clean unmanaged objects and also maintain its performance?

In order to clean unmanaged objects we need to follow the below steps:-

� Implement IDisposable interface and implement the dispose function.

� In Dispose function call the �GC.SuppressFinalize� method.

� At the client side ensure that the �Dispose� function is called when the object is no more required.

Below goes the code, this is also called as �Finalize and Dispose pattern�. This ensures that your objects are created in Generation 0 rather than Generation 1. �GC.SuppressFinalize� tells the garbage collector to not worry about destructor and destroy the objects in the first call itself.

class clsMyClass : IDisposable{~clsMyClass(){// In case the client forgets to call// Dispose , destructor will be invoked forDispose(false);}protected virtual void Dispose(bool disposing){if (disposing){// Free managed objects.}// Free unmanaged objects}public void Dispose(){Dispose(true);// Ensure that the destructor is not calledGC.SuppressFinalize(this);}}

Also view following video on estimations of software projects using Function Point Analysis: -

Get more .NET interview questions for preparation.

Regards,

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