Dot Net Programming: New Lease of Life with the Current Demand

If you're a keen .NET programmer, you are probably aware of what the above title says. Since the birth of multi-core computing, there has been a requirement for parallel-programming architecture. Now, the multi-core computing has developed into the prevailing paradigm in computer architecture since the invention of multi core-processors.
Incidentally, almost every programmer considers Visual Studio 2008 and .NET Framework 3.5 as getting distant and out of the way. To prevent its programming market fiasco, recently, Microsoft released the beta versions of .NET Framework 4 and Visual Studio 2010. The major focus fell on .NET 4, yet the labels boasted the arrival of parallel-programming. The question is whether there are any benefits particularly towards performance, on sticking to existing APIs? Go through to get the answer of the question.


.NET 4's Multi-Core processing ability:

Primarily, the MSDN site shows that the parallel extensions in the .NET 4, has been improvised itself to support analogous programming, targeting multi-core computing or distributed computing. The support for the Framework can be divided into four areas like library, LINQ, data structures and diagnostic tools. .NET 4's peers and predecessors are devoid of the multi-core operable ability.
The main criteria like communication and synchronization of sub-tasks were considered as the biggest obstacles in getting a good parallel program performance; But .NET 4's promising parallel library technology enables developers to define simultaneous, asynchronous tasks without having to work with threads, locks, or the thread pool.

Full support for multiple programming languages and compilers:
Apart from VB & C# languages, .NET 4 offers a full support for programming languages like Ironpython, Ironruby, F# and other similar .NET compilers. Other than the 3.5 version of the same model, it encompasses both functional-programming and crucial object-oriented programming.

Dynamic language runtime:

Addition of the dynamic language runtime (DLR) is a blessing for the .NET beginners. Using this new DLR runtime environment, developers can insert a set of services for dynamic languages to the CLR. Apart from that, the DLR makes it simpler to develop dynamic languages and to add dynamic features to statically typed languages. An original System Dynamic name space has been supplemented to the .NET Framework on supporting the DLR and numerous new classes supporting the .NET Framework infrastructure are extra to the System Runtime Compiler Services. Nevertheless, the new DLR provides the following advantages to developers: Developers can use speedy feedback loop which lets them enter diverse statements and execute them to see the results nearly immediately.


It has the ability to support for the top-down and more traditional bottom-up development. You can take the example of a developer using top down approach. He has the ability for call-out functions that are not yet can implement and then add them when required. There are simple refactoring and code modifications in which the Dot Net Programmers do not require to change static type declarations throughout the code.

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Importance of .Net Software Development

In the world of computers, software plays very important role just as hardware. This was recognized by Microsoft in earlier stages. Looking for new ways to improve their software, Microsoft made its software efficient not only to users but to developers as well.

.Net architecture not only helps businesses to make their existing software assets powerful but also to add new software services making them more productive. It can also prove effective in reducing application complexity and the related costs of developing and maintaining software.

.Net application development has helped to simplify development and customize of various enterprise level applications. This product comes as a part of Microsoft's Windows Operating System. .Net framework comes bundled with a lot of advantages, which makes it a widely used tool for .Net application development.



The .Net is built on the following Internet standards:

• UDDI, standard to search and discover Web Services

• XML, format for exchanging data between Internet Applications

• HTTP, communication protocol between Internet Applications

• SOAP, standard format for requesting Web Services


Advantages of .Net Software Development Services:

• Easy integration of any software into the Internet

• Supports directory services that can answer XML based questions

• Permits a wide variety of Internet devices to access data and applications

• Supports different levels of authentication of services such as passwords, wallets, and smart cards

• Ability to track visitors and report on the most requested web pages



The .Net framework is a set of huge library that encompasses various programming needs like user interface design, web development, data access, database connections, networking among many other algorithms. Hence the advent of .Net programming has simplified and made .Net application development very extensive.


Let's look at some important features of .Net framework:

• No language dependency
• Enhanced Security
• Easy deployment
• Easy Portability
• Interoperability


Commercial .Net Services that can be provided to Businesses:

• .Net Software Product Development

• .Net Desktop and Web Application Development

• Web Services based .Net Application development

• .Net custom control development


• .Net system design and application development

• .Net Architecture and design evaluation

• Developing web services using the .Net framework and the SOAP toolkit

• Migrating web and desktop applications to .Net

• Migration of application from .Net


.Net helps to develop your business, by generating large volumes of data that contain valuable information like individual facts about their customers, products, operations and people. By using .Net technology, web software outsourcing helps your business to do better.

Jane Bush invites you to gain more information on .net software development services at http://www.e-zest.net/dotnet.html

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Introduction to Microsoft .NET Technology

In 2000, Microsoft announced its .NET software environment, a new addition to Windows. The .NET ("dot - net") environment is effectively a "virtual computer" that runs on a real computer, with the advantage that any program written for it will run on any computer which is running .NET.
One important aspect of the .NET strategy is its independence from a specific language or platform. Developers can create a .NET application in any .NET - compatible language and participate in the same software project writing code in the .NET languages in which they are most competent (such as Visual C++.NET, Visual Basic .NET, C#, Perl and others). Part of the .NET software environment includes Active Server Pages (ASP) .NET technology, which allows developers to develop applications for the Web.


The .Net architecture can exist on multiple platforms, further extending the portability of .NET programs. Additionally, the .NET software environment involves a new program development process that could change the way programs are written and executed, leading to increased productivity.

The most important component of the .NET architecture is Web Services, which are applications that can be used over the Internet. One example of a Web service is the tour operator's flights booking system. The tour operator wanted to enable customers to book flights from the tour operator's Web site. To do so, the tour operator needed to access the airline's booking system. In response, an airline partner created a Web service that allowed the tour operator to access the airline's database and make bookings. Web services enable the two companies to communicate over the Web, even if they use the different operating systems (the tour operator uses UNIX and the airline uses Windows). By creating a Web service, the airline can allow other tour operators to use its booking system without creating a new program.


The .NET strategy extends the concept of software reuse to the Internet, allowing developers to concentrate on their specialties without having to implement every component of every application. Instead, companies can buy Web services and devote their time and energy to developing their products.

The .NET strategy incorporates the idea of software reuse. When companies link their products in this way, a new user experience emerges. For example, an online store could buy Web services for online credit-card payments, user authentication and inventory databases to create an e-commerce Web site. The keys to this interaction are XML and SOAP, which enable Web service to communicate. XML gives meaning to data, and SOAP is the protocol that allows Web services to communicate easily with one another. XML and SOAP act together combining various Web services to form applications.


Another important concept in the .NET technology is universal data access. If two copies of a file exist (such as on a personal computer and a company computer), the less recent version must constantly be updated, this is called file synchronization. If the separate versions of the file are different, they are unsynchronized and could lead to serious error. Using the .NET data could reside in one central location rather than on separate systems. Any internet-connected device could access the data, which would then be formatted properly for use on access device (a desktop PC, a PDA or other device). Thus, the same document could be displayed and edited without the need to synchronise the data, because it would be up to date in central area.

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MICROSOFT DOT NET

The .NET Data Types

The .NET data types are the types you use to store your data. They are value types and can be broken down into subcategories: Integer types, Floating-point types, the Boolean type, and the Char type. Two built-in reference types that are an integral part of your application will also be discussed: the String type and the Object type.
Integer Types

The .NET Framework provides a variety of Integer types. Table 3.1 summarizes these types and lists their corresponding Microsoft Visual Basic .NET and Microsoft Visual C# types.

The System.Single type is appropriate for floating-point calculations that require a lower degree of precision. It provides seven significant digits of precision. For greater levels of precision, you can use the System.Double type. This provides a much greater level of precision as well as the ability to handle vastly larger values. The System.Decimal type is specifically designed to facilitate financial calculations and is an ultra-high precision variable. Although it cannot hold values as great as System.Double, it has a much higher level of precision, providing 28 significant digits.

Non-Numeric Types

Four additional types that do not represent numbers are discussed in this section: System.Boolean, System.Char, System.String, and System.Object.
System.Boolean

The System.Boolean type is used to represent a value that is either true or false. It is called Boolean in Visual Basic .NET, and bool in Visual C#. The values that are valid for Boolean variables are True and False (Visual Basic .NET) or true and false (Visual C#).
System.Char

The System.Char type represents a single instance of a 16-bit Unicode character. It is called char in Visual C# and Char in Visual Basic .NET.
System.String

The System.String type is a reference type, and it represents a series of Char data types. In everyday terms, a string can represent a word, a paragraph, a key value, or any other string of characters. In Visual Basic .NET this type is called String, and in Visual C# it is called string.

System.Object

The Object type is the supertype of all types in the .NET Framework. Every type, whether value type or reference type, derives from System.Object. In Visual Basic .NET it is called Object, and in Visual C# it is called object.

If an object of a particular type is stored in an Object variable, it must be explicitly converted back to that type to access any of its inherent functionality.
Converting Types

At times, you will need to convert data from one type to another. Data can be converted in two ways: implicitly, which means the conversion is performed automatically, and explicitly, which means you must specifically ask for the conversion to be performed.
Implicit Conversions

Implicit conversions between types are automatically performed whenever the conversion can be performed without the loss of data.

Using Data Type Functionality

All of the data types have some kind of built-in functionality. At the very least, they all support four methods:

* Equals. Determines whether two instances are equal
* GetHashCode. Serves as a hash function for a particular type
* GetType. Returns the type object for the current instance
* ToString. Returns a human-readable form of the object


Boxing

The secret is called boxing. Boxing is the implicit conversion of value types to reference types. All classes and types derive from Object, and each of these four methods is a method of the Object class. Because each class derives from Object, they can be implicitly converted to that type. When you call one of these methods, the run time creates a temporary reference for your stack and allows you to treat it as a reference type.

Unboxing is the conversion of a boxed variable back to a value type. To unbox a variable, you must perform an explicit cast on the object to convert it to the appropriate type. Only objects that have been boxed can be unboxed.
Data Type Member Methods

Data types also have other methods that do not derive from Object. These methods usually involve functionality specific to the type. In Chapter 2, you were introduced to some of the comparison functions of the Char data type. Although the sheer scope of these methods is too great to be adequately dealt with in this text, some of the more generally useful functions will be discussed.
Parse

All of the value data types implement a Parse method. Parse is used to create a numeric value from a string. The Parse method is extremely useful when developing user interfaces. Controls that accept user input, such as TextBox, do so in the form of a string. The Parse method can be used to convert that string to usable data. Note that if a string cannot be read as a numeric value, an error will result. In all implementations, Parse is a static (Shared) method, and must be called from the type object rather than from an instance.
To convert a string to a numeric data type

Call the Parse method of that data type on that method.
The complete article and further complete information can he found at

http://dotnetpoint.blogspot.com

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28 tips for ASP.NET programming

1) Go for Javascript validations instead of validation controls
2) Use Javascript instead of VBscript.
3) Minimize the use of Forms authentication.
4) Use Connection Pooling and Object Pooling
5) Turn off Tracing unless until required
6) Turn off Session State, if not required
7) Disable View State of a Page if possible
8) Set debug=false in web.config
9) Avoid Response.Redirect as many places
10) Use the String builder to concatenate string
11) Avoid throwing exceptions. try to handle the exceptions without try catch.
12) Use Finally Method to kill resources
13) Avoid unnecessary round trips to the server
14) Use Gzip Compression
15) Use Page Output Caching and Proxy Servers
16) Use Per-Request Caching
17) Use Page.ISPostBack
18) Avoid Unnecessary Indirection
19) Use "ArrayLists" in place of arrays
20) Place StyleSheets into the Header
21) Put Scripts to the end of Document
22) Make JavaScript and CSS External
23) Use DataReader instead of Dataset
24) Make Enableviewstate property as false for the components (particularly for heavy items like datagrid, datalist etc) if it is not necessary.
25) Use xmlhttprequest object or scriptmanager to minimize post backs.
26) Declare regions for each section of codes.
27) Try to use datarepeater than any other data controls.
28) Use skins files.

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