.NET interview questions: – Can we 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
// In case the client forgets to call
// Dispose , destructor will be invoked for
protected virtual void Dispose(bool disposing)
if (disposing)
// Free managed objects.
// Free unmanaged objects

public void Dispose()
// Ensure that the destructor is not called

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

Get more important Dotnet interview questions for preparation.


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About c# and .NET Interview questions

This blog is for developers who want to crack .NET and C# interviews. It has all tips and tricks needed to crack .NET interviews , C# interview , SQL Server interview , Java interview , WCF Interview , Silverlight interview , WPF interview , LINQ interview , Entity framework Interview. Do not forget to watch our Learn step by step video series. Learn MVC in 16 hours:- https://www.youtube.com/watch?v=Lp7nSImO5vk Learn AngularJS Step by Step:- https://www.youtube.com/watch?v=0kmdjqgO9IY Learn Design Pattern in 8 hours:- https://www.youtube.com/watch?v=YDobmucohqk Learn C# and .NET in 60 days:- https://www.youtube.com/watch?v=yh2SrzCkNQA Learn MSBI in 32 hours:- https://www.youtube.com/watch?v=mGPJx3ocFgg Learn SharePoint Step by Step in 8 hours:- https://youtu.be/C2fW76SwJNU
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