.NET Training : C# Essentials <br> Rev. 10.0

C# Essentials
Rev. 10.0

.NET Training Overview

Microsoft .NET is an advance in programming technology that greatly simplifies application development, both for traditional, proprietary applications and for the emerging paradigm of Web-based services. .NET 10 is a unified platform, for browser, cloud, desktop, IoT, and mobile apps. It is based on .NET Core, the package-based implementation that is cross-platform, running on Mac and Linux besides Windows.

Part of this technology is the language C#. This language combines the power of C++ and the ease of development of Visual Basic 6. It bears a striking resemblance to Java and improves on that language. C# has become the dominant language for building new applications on Microsoft platforms.

This intensive course is designed for the experienced programmer to help you quickly come up to speed on the C# language. It is current to Visual Studio 2026 and .NET 10. Important newer features such as dynamic data types, named and optional arguments, tuples, asynchronous programming keywords, nullable reference types, record types and top-level statements are covered.

This course concisely covers the essentials of programming using Microsoft�s C# programming language. It starts with an overview of .NET architecture and the basics of running C# programs in a .NET environment. The next two chapters cover C# language essentials and object-oriented programming in C#. The next chapter discusses how C# relates to.NET. The following chapter covers delegates and events. The course concludes with a chapter covering the newer features in C#. Appendices provide an overview of LINQ, coverage of unsafe code and pointers in C#, and a tutorial on Visual Studio 2026.

The course is practical, with many example programs and a progressively developed case study. The goal is to quickly bring you up to speed in writing C# programs. The student will receive a comprehensive set of materials, including course notes and all the programming examples.

.NET Training Learning Objectives

Acquire a working knowledge of C# programming

Learn about important interactions between C# and the .NET

Learn how to implement simple GUI programs using Windows Forms

Gain a working knowledge of important newer features in C#

.NET Training Prerequisites

The student should be an experienced application developer or architect. Some background in object-oriented programming in a language such as C++ or Java would be helpful.

.NET Training Course duration

3 days

.NET Training Course outline

1. Introduction to NET

What is .NET?
.NET Framework, NET Core and .NET 10
Application Models
Managed Code
Visual Studio 2026
Console Programs and New Console Template
GUI Programs

2. C# Overview for the Sophisticated Programmer

First C# Console Application
Namespaces
Data Types
Conversions
Control Structures
Subroutines and Functions
Parameter Passing
Strings
Arrays
Implicitly Typed Variables
Console I/O
Formatting
Exception Handling

3. Object-Oriented Programming in C#

Classes
Access Control
Methods and Properties
Asymmetric Accessor Accessibility
Static Data and Methods
Constant and Readonly Fields
Auto-Implemented Properties
Inheritance
Overriding Methods
Abstract Classes
Sealed Classes
Access Control and Assemblies

4. C# and.NET

Components
Interfaces
System.Object
.NET and COM
Collections
IEnumerable and IEnumerator
Copy Semantics in C#
Generic Types
Type-Safe Collections
Object Initializers
Collection Initializers
Anonymous Types
Attributes

5. Delegates and Events

Delegates
Anonymous Methods
Lambda Expressions
Random Number Generation
Events

6. Introduction to Windows Forms

Creating Windows Applications Using Visual Studio 2026
Partial Classes
Buttons, Labels and Textboxes
Handling Events
Listbox Controls

7. Additional Features in C#

Dynamic Data Type
Named and Optional Arguments
Variance in Generic Interfaces
Asynchronous Programming Keywords
Nullable Reference Types
Record Types
Top-level Statements

Appendix A. Learning Resources

Appendix B. Language Integrated Query (LINQ)

What Is LINQ?
Basic Query Operators
Filtering
Ordering
Aggregation

Appendix C. Unsafe Code and Pointers in C#

Unsafe Code
C# Pointer Type

Appendix D. Using Visual Studio 2026

Signing in to Visual Studio
Overview of Visual Studio 2026
Creating a Console Application
Project Configurations
Debugging
Multiple-Project Solutions

System Requirements

Course examples require Microsoft Visual Studio 2026 and Windows 10 or higher. Window 11 is recommended. The free Visual Studio Community 2026 can be used. See the appropriate course Setup Guide for details.

A good minimal hardware profile for this course consists of a 2 GHz or better CPU, 4 GB of RAM and at least 10 GB of free disk space for tools installation and courseware.