C# refresher course is a practical 3-day training program designed for developers and IT professionals who want to review and strengthen their existing C# programming knowledge. Participants will revisit essential C# concepts while exploring object-oriented programming, collections, generics, LINQ, delegates, exception handling, asynchronous programming, and modern C# features. Through hands-on exercises and real-world development scenarios, learners can reinforce their skills, improve coding practices, and prepare for new C# development projects.
Duration 3 days – 21 hrs
Overview
The C# Refresher Course is a practical 3-day training program designed for developers and IT professionals who already have experience with C# and want to refresh, strengthen, and update their programming skills. The course provides a structured review of essential C# concepts while introducing advanced features and development practices that can help participants become more confident and effective when working on real-world applications.
Participants will revisit important topics such as C# syntax, data types, control structures, methods, object-oriented programming, collections, generics, and exception handling. The training also explores commonly used features such as LINQ, lambda expressions, delegates, events, asynchronous programming, and resource management, allowing learners to reinforce their existing knowledge while improving their understanding of modern C# development.
The C# Refresher Course combines instructor-led discussions, practical coding exercises, debugging activities, and real-world programming scenarios. Participants will have opportunities to apply concepts directly using Visual Studio, identify common coding issues, and practice writing cleaner, more efficient, and maintainable C# applications.
By the end of the training, participants will have a stronger command of essential and advanced C# concepts, improved confidence in developing and debugging applications, and a refreshed foundation for taking on new development projects, advanced C# training, or .NET application development tasks.
Learning Objectives
- Revisit and understand the core concepts of C# programming.
- Utilize advanced C# features and best practices.
- Write efficient and maintainable C# code.
- Implement object-oriented programming principles effectively.
- Work with collections, generics, and LINQ for data manipulation.
- Handle exceptions and manage resources properly.
- Develop and debug C# applications using Visual Studio.
Audience
- Developers with prior C# experience seeking a refresher.
- Software engineers looking to reinforce their C# skills.
- IT professionals transitioning to C# development.
- Anyone preparing for advanced C# development projects.
Pre- requisites
- Basic understanding of C# programming.
- Familiarity with object-oriented programming concepts.
- Experience with Visual Studio or similar IDEs.
Course Content
Module 1: Introduction and Core Concepts Review
- Overview of C# and .NET
- Key features of C#
- Setting up the development environment
- Writing and running basic C# programs
Module 2: Data Types and Variables
- Value types and reference types
- Declaring and initializing variables
- Type conversion and casting
- Working with strings and dates
Module 3: Control Structures
- Conditional statements (if, else, switch)
- Looping constructs (for, foreach, while, do-while)
- Using break, continue, and goto
- Exception handling with try, catch, finally
Module 4: Methods and Functions
- Declaring and invoking methods
- Method parameters and return types
- Method overloading
- Understanding ref and out parameters
Module 5: Object-Oriented Programming (OOP)
- OOP principles (encapsulation, inheritance, polymorphism, abstraction)
- Defining and using classes and objects
- Constructors and destructors
- Inheritance and method overriding
- Abstract classes and interfaces
Module 6: Collections and Generics
- Working with arrays and collections
- Using List, Dictionary, Queue, and Stack
- Introduction to generics
- Using generic collections and methods
Module 7: LINQ (Language Integrated Query)
- Introduction to LINQ
- Writing LINQ queries
- Using LINQ to Objects, LINQ to XML, and LINQ to SQL
- Understanding lambda expressions
Module 8: Delegates and Events
- Understanding delegates
- Creating and using delegates
- Events and event handling
- Using built-in delegates (Func, Action, Predicate)
Module 9: Error Handling and Resource Management
- Handling exceptions effectively
- Custom exceptions
- Using using statement for resource management
- Implementing IDisposable interface
Module 10: Advanced C# Features
- Working with anonymous methods and expressions
- Understanding and using attributes
- Exploring reflection and dynamic types
- Asynchronous programming with async and await
Module 11: Working with Visual Studio
- Overview of Visual Studio features
- Using the debugger
- Writing and running unit tests
- Productivity tools and extensions
Module 12: Practical Exercises and Projects
- Hands-on coding exercises
- Real-world application development scenarios
- Group projects and collaborative coding
- Review and feedback on code
