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Topics

C# Basics

Introduction to C#C# Environment SetupC# SyntaxC# VariablesC# Data TypesC# Type ConversionC# OperatorsC# CommentsC# Input/OutputC# Naming Conventions

C# Control Structures

C# If-Else StatementsC# Switch StatementsC# While LoopsC# For LoopsC# Foreach LoopsC# Break and ContinueC# Goto Statement

C# Functions and Methods

C# Method DeclarationC# Method ParametersC# Method OverloadingC# Return ValuesC# RecursionC# Optional ParametersC# Named Arguments

C# Arrays and Collections

C# ArraysC# Multidimensional ArraysC# Jagged ArraysC# ListsC# DictionariesC# HashSetC# Queue and StackC# LinkedList

C# Object-Oriented Programming

C# Classes and ObjectsC# ConstructorsC# PropertiesC# EncapsulationC# InheritanceC# PolymorphismC# Abstract ClassesC# InterfacesC# Structs

C# Advanced Concepts

C# DelegatesC# EventsC# GenericsC# Lambda ExpressionsC# LINQC# Async/AwaitC# AttributesC# ReflectionC# Extension Methods

C# Exception Handling

C# Try-Catch BlocksC# Multiple Catch BlocksC# Finally BlockC# Custom ExceptionsC# Exception Filters

C# File Handling

C# File I/O OperationsC# StreamReader and StreamWriterC# File and Directory ClassesC# Serialization

C# Memory Management

C# Garbage CollectionC# IDisposable InterfaceC# Using StatementC# Finalizers

C# Multithreading

C# Thread ClassC# Task Parallel LibraryC# Async ProgrammingC# Thread SynchronizationC# Concurrent Collections

C# .NET Framework

C# Common Language RuntimeC# Base Class LibraryC# AssembliesC# Global Assembly Cache

C# Advanced Topics

C# Unsafe CodeC# Operator OverloadingC# IndexersC# Partial Classes and MethodsC# Preprocessor Directives

C# Global Assembly Cache (GAC)

The Global Assembly Cache (GAC) is a central repository in the .NET Framework for storing and managing shared assemblies. It plays a crucial role in the C# Assemblies ecosystem, providing a way to share common libraries across multiple applications on a single machine.

Purpose and Benefits

The GAC serves several important purposes:

  • Centralized storage for shared assemblies
  • Version control and side-by-side execution
  • Enhanced security through strong naming
  • Improved performance by reducing disk I/O

Working with the GAC

To interact with the GAC, you'll need to use specific tools provided by the .NET Framework. Here are some common operations:

Installing an Assembly to the GAC

Use the gacutil.exe tool to install an assembly:

gacutil /i YourAssembly.dll

Removing an Assembly from the GAC

To uninstall an assembly, use the following command:

gacutil /u YourAssembly

Strong Naming

Assemblies must be strongly named to be installed in the GAC. This involves signing the assembly with a unique key pair. Here's how you can create a strong name key file:

sn -k KeyFile.snk

Then, add the following to your project file or assembly info:

[assembly: AssemblyKeyFile("KeyFile.snk")]

Considerations and Best Practices

  • Only install assemblies in the GAC when necessary
  • Ensure proper versioning to avoid conflicts
  • Use strong naming consistently across related assemblies
  • Be cautious when updating GAC assemblies, as it affects all dependent applications

Relationship with Other C# Concepts

The GAC is closely related to several other C# concepts:

Conclusion

The Global Assembly Cache is a powerful feature of the .NET Framework that enables efficient sharing of assemblies across applications. By understanding its purpose and proper usage, developers can leverage the GAC to create more maintainable and performant C# applications.