The world of .NET development offers powerful collections like List, Dictionary, HashSet, and many other, but knowing when to use each can make or break your app’s performance. This session will walk you through the ins and outs of .NET collections, diving into their use cases, internal mechanics, and performance tips—empowering you to write efficient, scalable code with confidence.

00:00 | Introduction

01:01 | Overview of SSW Rewards App

01:32 | Anton’s Experience and .NET History

03:08 | Comparing Algorithms: Random Access Machine vs. Asymptotic Analysis

04:45 | Big O Notation Explained

06:18 | Common Algorithm Complexities: Constant, Linear, Quadratic

07:06 | Identifying Algorithm Complexity in Code

08:07 | Binary Search and Logarithmic Complexity

09:38 | Understanding .NET Collection Interfaces

11:43 | Arrays in .NET: Memory and Performance

13:41 | Performance Benchmarking: Row vs. Column Iteration in Arrays

17:16 | Multi-Dimensional Arrays and Memory Limitations

20:51 | Understanding Array Indexing in .NET

23:05 | Lists in .NET and Capacity Management

26:18 | Performance Impact of Capacity in Lists

28:57 | Array and List Performance: Key Takeaways

31:29 | Introduction to Queues in .NET

33:53 | Dictionary Internals: Hashing and Collisions

37:18 | Adding Elements and Handling Collisions in Dictionaries

44:00 | Advanced Topics: Concurrent Collections (Teased for Next Talk)

45:03 | Q&A Session and Conclusion



Links:
Need help?: https://ssw.com.au/ssw/Consulting

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Get in touch:
Anton Polkonov – SSW Senior Software Engineer II
About: https://www.ssw.com.au/people/anton-polkanov/
LinkedIn: https://www.linkedin.com/in/anton-polkanov-504437128/

For more information about SSW’s consulting services, please visit https://ssw.com.au

#dotnet #dotnetcollections #algorithms #programming #netdevelopment #performance #bigonotation #ssw #sswrewards


V2 – Marcus

About the speakers

About the speakers

Anton Polkonov

Anton is a results-driven Senior Software Engineer at SSW with over 7 years of experience in professional software development. He has a proven track record of delivering high-quality solutions that meet the needs of both end-users and the business. Anton's expertise lies in designing and building robust software applications using cutting-edge approaches and techniques.

Anton is passionate about mobile development, specializing in the .NET platform and performance engineering. He stays updated on the latest advancements in technology to ensure he delivers solutions that are at the forefront of innovation. Additionally, Anton actively contributes to the tech community as the organizer of a competitive programming club in Newcastle.

Certified in Azure and proficient in .NET, Anton is well-equipped to tackle complex challenges and drive success in software development projects.

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