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This topic contains information about key features and improvements in the .NET Framework version 4. This topic does not provide comprehensive information about all new features and is subject to change.

The .NET Framework 4 introduces an improved security model. For more information, see Security Changes in the .NET Framework 4. For lists of new namespaces, new types, and new members added to existing types, see New Types and Members in the .NET Framework 4. Other new features and improvements in the .NET Framework 4 are described in the following sections: ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 617 | Categories: Visual Studio 2010
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The .NET Framework class library is a library of classes, interfaces, and value types that provide access to system functionality. It is the foundation on which .NET Framework applications, components, and controls are built. The namespaces and namespace categories in the class library are listed in the following table and documented in detail in this reference. (Note that the table of contents lists the namespaces and categories by usage, with the most frequently used namespaces appearing first. The following list is ordered alphabetically, to provide an alternate way to navigate the class li ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 784 | Categories: Visual Studio 2010
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Welcome to the .NET Framework version 4. The .NET Framework is an integral Windows component that supports building and running the next generation of applications and Web services. The key components of the .NET Framework are the common language runtime (CLR) and the .NET Framework class library, which includes ADO.NET, ASP.NET, Windows Forms, and Windows Presentation Foundation (WPF). The .NET Framework provides a managed execution environment, simplified development and deployment, and integration with a wide variety of programming languages. ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 536 | Categories: Visual Studio 2010
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.NET Framework 4
Automatic memory management is one of the services that the common language runtime provides during Managed Execution. The common language runtime's garbage collector manages the allocation and release of memory for an application. For developers, this means that you do not have to write code to perform memory management tasks when you develop managed applications. Automatic memory management can eliminate common problems, such as forgetting to free an object and causing a memory leak, or attempting to access memory for an object that has already been freed. This section desc ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 1358 | Categories: CLR
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C++, F#, or one of many third-party compilers such as an Eiffel, Perl, or COBOL compiler.

Because it is a multilanguage execution environment, the runtime supports a wide variety of data types and language features. The language compiler you use determines which runtime features are available, and you design your code using those features. Your compiler, not the runtime, establishes the syntax your code must use. If your component must be completely usable by components written in other languages, your component's exported types must expose only language features that are included in the Co ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 1252 | Categories: CLR
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The .NET Framework provides a run-time environment called the common language runtime, which runs the code and provides services that make the development process easier.

Compilers and tools expose the common language runtime's functionality and enable you to write code that benefits from this managed execution environment. Code that you develop with a language compiler that targets the runtime is called managed code; it benefits from features such as cross-language integration, cross-language exception handling, enhanced security, versioning and deployment support, a simplified model for c ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 1234 | Categories: CLR
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The Microsoft .NET Common Language Runtime provides a
shared type system, intermediate language and dynamic execution
environment for the implementation and inter-operation of multiple
source languages. In this paper we extend it with direct support for
parametric polymorphism (also known as generics), describing the
design through examples written in an extended version of the C#
programming language, and explaining aspects of implementation
by reference to a prototype extension to the runtime. ...Read more
Posted by: Teena
On 22 Sep 2011 | Views: 1266 | Categories: CLR
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In the last post, we successfully implemented a webpart framework that renders simple static Views and allows the user to change the layout.
However, one must wonder what needs to be done to make our web parts richer. At the moment, I’m not passing any data to these webparts so they simply render a string: ...Read more
Posted by: Michael
On 20 Sep 2011 | Views: 677 | Categories: MVC, AJAX
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While I was preparing another demo, I ran into an interesting problem that hadn’t occurred to me before. I was building a sample e-commerce site and thought it would be nice to always display the category list on the left hand side of every page.
The first way I could think of was always passing that data in every action method, but that seemed to be a brute force approach that lack any sort of elegance (not to mention poor application design). ...Read more
Posted by: Michael
On 20 Sep 2011 | Views: 838 | Categories: MVC
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The controller gets the first hit and loads the model. Most of the time we would like to pass the model to the view for display purpose.

As an ASP.NET developer your choice would be to use session variables, view state or some other ASP.NET session management object.

The problem with using ASP.NET session or view state object is the scope. ASP.NET session objects have session scope and view state has page scope. For MVC we would like to see scope limited to controller and the view. In other words we would like to maintain data when the hit comes to controller and reaches the view and a ...Read more
Posted by: Michael
On 20 Sep 2011 | Views: 780 | Categories: MVC
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