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Intro to WPF: Learn the basics and best practices of WPF for C#
48:31
Interfaces in C# - What they are, how to use them, and why they are so powerful.
40:24
Design Patterns: Interface Segregation Principle Explained Practically in C# (The I in SOLID)
44:34
SQL Stored Procedures - What They Are, Best Practices, Security, and More...
55:32