C# 4.0 – Ch:02:A – Language Basics

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…. continued from previous article “C# 4.0 – Ch:01:E – Assemblies”

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First program in C#.NET 4.0

In this chapter, we shall start with writing our first program in C#.NET 4.0.

In this tutorial, we will be working in Visual Studio 2010. Visual Studio 2010 is a fully integrated development environment from Microsoft, designed to make the process of writing code, debugging it and compiling it to an assembly to be shipped as easy as possible. Though there are other ways to build C# programs, but Visual Studio is the most widely used and it’s also freely available as an express edition, so we’ll stick with that.

Note: If you don’t have Visual Studio, you can download the free Express edition from http://www.microsoft.com/express/.

I am going to keep this article as simple as possible. Don’t worry if you don’t know how to use Visual Studio 2010 or the Express edition. Though I am not going to cover Visual Studio in detail in this tutorial, I will explain the important features and how to make use of them as we progress through this article. For now, all you need to do is try it out as explained below without worrying about the details.

C# 4.0 – Ch:01:E – Assemblies

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…previous article “C# 4.0 – Ch:01:D – Garbage Collector & Security in .NET”

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What are assemblies?

An assembly is the .NET term for a deployment and configuration unit, which contains compiled code targeted at the .NET Framework and can be either an EXE or a DLL. For both EXE and DLL (executable code and library code), same assembly structure is used. The only real difference is that, while an EXE contains a main program entry point, a DLL does not.

Assemblies are logical rather than a physical unit, which means that it can be stored across more than one file. If an assembly is stored in more than one file, there will be one main file that contains the entry point and describes the other files in the assembly.

C# 4.0 – Ch:01:D – Garbage Collector & Security in .NET

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….continued from “C# 4.0 – Ch:01:C – Language Interoperability”

Garbage Collector (GC)

All .NET programs that run in a managed environment is provided automatic memory management by the .NET CLR. However, to take proper advantage of this automatic memory management requires you to have an overview of the .NET memory management environment. In this chapter, I’ll explain how the automatic memory management in the CLR works.

The Garbage Collector (GC) is .NET ’ s answer to memory management. The GC manages the memory in managed code for you. The purpose of GC is to clean up memory.

C# 4.0 – Ch:01:C – Language Interoperability

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…continued from previous article “C# 4.0 – Ch:01:B – Close-up with .NET”

Language Interoperability

When we say Language Interoperability, what we really mean by this is that classes written in one language are able to talk directly to classes written in another language. To be more specific we can say that:

A class written in one language can be inherited by a class written in another language.

Irrespective of the language used, a class can have instances of other classes that have been written in one or more languages as per my previous point.

An object written in one language can directly call and make use of methods or properties from another object written in another language.

Objects written in different languages can be passed as arguments and return values irrespective of the language the code is written.

C# 4.0 – Ch:01:B – Close-up with .NET

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…continued from previous article “C# 4.0 – Ch:01:A – Introduction”

In this chapter, I am going to get close-up with .NET. Let us look at some of the features that it provides us.

Object Orientation

.NET supports object-oriented programming, with single implementation inheritance of classes and includes encapsulation, inheritance, and polymorphism.

Encapsulation means that a group of related properties, methods, and other members are treated as a single unit or object.

Inheritance describes the ability to create new classes based on an existing class.

Polymorphism means that you can have multiple classes that can be used interchangeably, even though each class implements the same properties or methods in different ways.

C# 4.0 – Ch:01:A – Introduction

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C#—pronounced “See Sharp”—is a programming language designed for Microsoft’s .NET platform. C# is a general-purpose, type-safe, object-oriented programming language. The chief architect of the language since its first version is Anders Hejlsberg (creator of Turbo Pascal and architect of Delphi). The goal of C# is to provide a simple, safe, modern, object-oriented, Internet-centric, high-performance language for .NET development. C# was first announced in July 2000 with the announcement of the .NET platform by Microsoft. It was released in January 2002 with .NET framework 1.0. C# was first called “Cool” which stood for "C-like Object Oriented Language”. C# is a strongly typed object-oriented language whose code visually resembles C++ (and Java). This decision by the C# language designers allows C++ developers to easily leverage their knowledge to quickly become productive in C#. C# syntax differs from C++ in some ways, but most of the differences between these languages are semantic and behavioral, stemming from differences in the runtime environments in which they execute.

Anders Hejlsberg

What is mscorsvw.exe and why is it eating up my CPU?

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Today, I suddenly found my system too very slow and most of the apps where hanging. When I checked the tasks manager, found that “mscorsvw.exe” was consuming more than 50% of the processor while my anti-virus was consuming another 30%+ which was making my system to become very sluggish.

The first thing that came to my mind when I saw anti-virus software consuming so much was that “mscorsvw.exe might be some virus” which somehow entered my system and anti-virus was trying to clean it up. But this thing went on for more than 15 min which made me worried. Did not want to find myself in the situation where I lose all my data. That is when I tried to do some research and to my surprise, the mscorsvw.exe was a tool that comes with .net framework and anti-virus was also processing to check that the output from this file.