C# and .NET Concepts Explained

C# Programming and .NET Concepts By S. Nandagopalan www.bitignou.com [email_address]

Books for Reference ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Chapter - 1 ,[object Object],S. Nandagopalan, B I T

Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Understanding the previous state of affairs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Previous state of affairs… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

.NET Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

.NET Framework S. Nandagopalan, B I T Operating System Common Language Runtime Base Class Library ADO.NET and XML Common Language Specification Visual Studio.NET ASP.NET Web Forms Web Services Windows Forms VB C++ C# JScript J#

Building Blocks of .NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CLR (Common Language Runtime) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Base Class Libraries ,[object Object],[object Object],S. Nandagopalan, B I T Common Language Runtime CTS CLS Base Class Libraries Threading Data Access File IO XML/SOAP GUI

C# ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Understanding Assemblies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Assembly ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T C# source code C# .NET Compiler Assembly Metadata IL + =

Assembly… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Example of CIL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CIL of Add() Method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Manifest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T External Assembly

CIL to Execution ,[object Object],S. Nandagopalan, B I T CIL JIT Desktop Pocket PC Server

Common Type System (CTS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CTS Class Type ,[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CTS Class Characteristics ,[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Intrinsic CTS Data Types S. Nandagopalan, B I T .NET Base Type C# Type System.Byte Byte System.SByte sbyte System.Int16 short System.Int32 int System.Int64 long System.UInt64 ulong System.Single float System.Double double System.Object object System.String string System.Boolean bool

Common Language Specification (CLS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CLS Compliance S. Nandagopalan, B I T C# Type CLS Compliance byte Yes sbyte No short Yes int Yes long Yes ulong No float Yes double Yes object Yes string Yes char Yes bool Yes

Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

CLR .NET Source Code Base Class Libraries (mscorlib.dll) .NET Execution Engine Class Loader Jitter Platform Specific code Execute .NET Compiler DLL or EXE (CIL) mscoree.dll mscoree.dll MicroSoft Common Object Runtime Execution Engine

.NET Namespace ,[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Example in C# ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T System Namespace Console class in System Namespace

Example in VB .NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Example in Managed C++ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S. Nandagopalan, B I T

Sample .NET namespaces S. Nandagopalan, B I T System primitive types, garbage collection, etc System.Collections Container objects: ArrayList, Queue, etc. System.Data System.Data.Common System.Data.OleDb System.Data.SqlClient For Database manipulations ADO .NET System.IO file IO, buffering, etc. System.Drawing System.Drawing.2D GDI+ primitives, bitmaps, fonts, icons, etc. System.Threading Threads

Demo ,[object Object],[object Object],[object Object],S. Nandagopalan, B I T

[object Object],S. Nandagopalan, B I T

C# and .NET Concepts Explained

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