Dot Net Tutorials

Visual Studio.NET is based on the .NET framework.
Visual Studio.NET provides languages and tools that enable you to build Web-based, desktop, and mobile applications. You can also create Web services in Visual Studio.NET.

Visual Studio.NET includes the following programming languages:
1. Visual Basic.NET
2. Visual C++.NET
3. Visual C#.NET
It also provides additional technologies, such as ASP.NET, that enable you to develop and deploy applications.In addition, Visual Studio.NET includes the MSDN library that contains documentation on various development  tools and applications.

Using the integrated development environment (IDE) of Visual Studio.NET, you can create applications in the various .NET languages. The IDE of Visual Studio.NET enables you to share tools and create applications in multiple languages.

Visual Studio.NET includes various enhancements over earlier versions of Visual Studio.

 New Features in Visual Basic :

Unlike Visual Basic 6.0, Visual Basic.NET is an object-oriented language.Visual Basic.NET supports the abstraction, encapsulation, inheritance, and polymorphism features.The earlier versions of Visual Basic, versions 4 through 6, supported interfaces but not implementation inheritance. Visual Basic.NET supports implementation inheritance as well as interfaces.Another new feature is overloading.In addition, Visual Basic.NET supports multithreading,which enables you to create multithreaded and scalable applications. Visual Basic.NET is also compliant with the common language specification (CLS) and supports structured exception handling.

Visual C# .NET
Visual Studio.NET provides a new language, Visual C#.NET, which is an object-oriented language based on the C and C++ languages. Using Visual C#.NET, you can create applications for the .NET framework. As mentioned earlier, Visual C#.NET supports the CLR, therefore, any code written in Visual C#.NET is managed code. The IDE provides various templates, designers, and wizards to help you create applications in Visual C#.NET.

Visual C++ .NET
Visual C++.NET is an enhanced version of Visual C++. Visual C++.NET includes features such as support for managed extensions and attributes.Managed extensions include a set of language extensions for C++ to enable you to create applications for the .NET framework. Using managed extensions, you can easily convert existing components to components that are compatible with the .NET framework. Therefore, with the help of managed extensions, you can reuse existing code and thus save both time and effort. In addition, by using managed extensions, you can combine both unmanaged and managed C++ code in an application.

The CLS is a set of rules and constructs that are supported by the CLR. Visual Basic.NET is a CLS-compliant language. Any objects, classes, or components that you create in Visual Basic.NET can be used in any other CLS-compliant language. In addition, you can use objects, classes, and components created in other CLScompliant languages in Visual Basic.NET. The use of the CLS ensures complete interoperability among applications, regardless of the language used to create the application. Therefore, while working in Visual Basic.NET, you can derive a class based on a class written in Visual C#.NET, and the data types and variables of the derived class will be compatible with those of the base class.

Visual C++.NET also supports attributes, which enable you to extend the functionality of the language and to simplify the creation of COM components. You can apply attributes to classes, data members, or member functions.

What are Web Forms ?
Visual Studio.NET introduces Web forms, which are based on Microsoft ASP.NET technology. Web forms are used to create Web pages. In Visual Studio.NET, you can drag controls to the designer and then add code to create Web pages. A Web forms page can open in any Web browser. The controls in a Web forms page are based on server-side logic.

What are Windows Forms ?
Windows forms provide a platform for developing Windows applications based on the .NET framework. Windows forms include a set of object-oriented and extensible classes that enable you to implement visual inheritance. Visual inheritance enables you to inherit a form from an existing form. Using these classes, you can develop Windows applications by creating a form based on an existing form. When you create forms based on existing forms, you can reuse code and thus enhance productivity. Typically,Windows forms are used to create user interfaces for a multitier application.

What are Web Services ?
Web services are applications that exchange data by using eXtensible Markup Language (XML). Web services can also receive requests over HTTP. Web services are not a part of any specific component technology. Therefore, any language or operating system can use Web Services. You can use Visual Basic.NET, Visual C#.NET, or ATL Server to create Web services.

XML(Extensible Markup Language)

XML is a markup language based on Standard Generalized Markup Language (SGML), which is a standard for all markup languages. XML is a subset of SGML. XML enables you to define the structure of data by using markup tags. In addition, you can also define new tags using XML.The World Wide Web Consortium (W3C) has defined XML standards to ensure that structured data is uniform and independent of applications.

Visual Studio.NET it also provides XML Designer, which enables you to create and edit XML documents and create XML schemas.