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
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Anton Polkonov – SSW Senior Software Engineer II
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#dotnet #dotnetcollections #algorithms #programming #netdevelopment #performance #bigonotation #ssw #sswrewards
V2 – Marcus
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.