The .NET Framework 3.5 includes enhancements in targeted areas of ASP.NET and Visual Web Developer. The most significant advance is improved support for the development of AJAX-enabled Web sites. ASP.NET supports server-centric AJAX development with a set of new server controls and APIs. You can enable an existing ASP.NET 2.0 page for AJAX by adding a  ScriptManager control and an  UpdatePanel control so that the page can update without requiring a full page refresh.

ASP.NET also supports client-centric AJAX development with a new client library called the Microsoft AJAX Library. The Microsoft AJAX Library supports client-centric, object-oriented development, which is browser-independent. By using the library classes in your ECMAScript (JavaScript) you can enable rich UI behaviors without roundtrips to the server. You can mix the degree of server-centric and client-centric development to meet the needs of your application. Furthermore, Visual Web Developer includes improved IntelliSense support for JavaScript and support for the Microsoft AJAX Library.

ASP.NET and Visual Web Developer now support the creation of both ASMX and WCF-based Web services and the seamless use of either implementation from Web pages using Microsoft AJAX Library. Furthermore, server-side application services including forms authentication, roles management, and profiles are now exposed as Web services that can be consumed in WCF-compatible applications, including client script and Window Forms clients. ASP.NET enables all Web-based applications to share these common application services.

Other improvements in ASP.NET include a new data control, ListView, for displaying data; a new data source control, LinqDataSource, that exposes Language Integrated Query (LINQ) to Web developers through the ASP.NET data source control architectures; a new tool, ASP.NET Merge Tool (Aspnet_merge.exe), for merging precompiled assemblies; and tight integration with IIS 7.0. ListView is a highly customizable control (using templates and styles) that also supports edit, insert, and delete operations, as well as sorting and paging functionality. The paging functionality for ListView is provided by a new control called DataPager. You can use the merge tool to combine assemblies to support a range of deployment and release management scenarios. The integration of ASP.NET and IIS 7.0 includes the ability to use ASP.NET services, such as authentication and caching, for any content type. It also includes the ability to develop server pipeline modules in ASP.NET managed code and supports unified configuration of modules and handlers.

Other improvements in Visual Web Developer include multitargeting support, inclusion of Web Application Projects, a new Design view, new Cascading Style Sheets (CSS) design tools, and support for LINQ for SQL databases. Multitargeting enables you to use Visual Web Developer to target development of Web applications to specific versions of the .NET Framework, including versions 2.0, 3.0, and 3.5.

ASP.NET Merge Tool
ASP.NET 3.5 includes a new merge tool (aspnet_merge.exe). This tool lets you combine and manage assemblies created by aspnet_compiler.exe. This tool was available earlier as an add-on.
New Assemblies
The new assemblies that would be of use to ASP.NET 3.5 developers are as follows:
·       System.Core.dll – Includes the implementation for LINQ to Objects
·       System.Data.Linq.dll – Includes the implementation for LINQ to SQL
·       System.Xml.Linq.dll – Includes the implementation for LINQ to XML

Windows Communication Foundation Overview

The global acceptance of Web services, which includes standard protocols for application-to-application communication, has changed software development. For example, the functions that Web services now provide include security, distributed transaction coordination, and reliable communication. The benefits of the changes in Web services should be reflected in the tools and technologies that developers use. Windows Communication Foundation (WCF) is designed to offer a manageable approach to distributed computing, broad interoperability, and direct support for service orientation.

WCF simplifies development of connected applications through a new service-oriented programming model. WCF supports many styles of distributed application development by providing a layered architecture. At its base, the WCF channel architecture provides asynchronous, untyped message-passing primitives. Built on top of this base are protocol facilities for secure, reliable, transacted data exchange and broad choice of transport and encoding options.

The typed programming model (called the service model) is designed to ease the development of distributed applications and to provide developers with expertise in ASP.NET Web services, .NET Framework remoting, and Enterprise Services, and who are coming to WCF with a familiar development experience. The service model features a straightforward mapping of Web services concepts to those of the .NET Framework common language runtime (CLR), including flexible and extensible mapping of messages to service implementations in languages such as Visual C# or Visual Basic. It includes serialization facilities that enable loose coupling and versioning, and it provides integration and interoperability with existing .NET Framework distributed systems technologies such as Message Queuing (MSMQ), COM+, ASP.NET Web services, Web Services Enhancements (WSE), and a number of other functions.

Windows Workflow Foundation Overview

Windows Workflow Foundation is a framework that enables users to create system or human workflows in their applications written for Windows Vista, Windows XP, and the Windows Server 2003 operating systems. It consists of a namespace, an in-process workflow engine, and designers for Visual Studio 2005. Windows Workflow Foundation can be used to solve simple scenarios, such as showing UI controls based on user input, or complex scenarios encountered by large enterprises, such as order processing and inventory control. Windows Workflow Foundation comes with a programming model, a rehostable and customizable workflow engine, and tools for quickly building workflow-enabled applications on Windows.

Scenarios that Windows Workflow Foundation addresses include:

* Enabling workflow within line-of-business applications.

* User-interface page flows.

* Document-centric workflows.

* Human workflows.

* Composite workflows for service-oriented applications.

* Business rule-driven workflows.

* Workflows for systems management.

Windows Workflow Foundation provides a consistent and familiar development experience with other .NET Framework 3.0 technologies, such as Windows Communication Foundation and Windows Presentation Foundation. The Windows Workflow Foundation API provides full support for Visual Basic .NET and C#, a specialized workflow compiler, debugging within a workflow, a graphical workflow designer, and developing your workflow completely in code or in markup. Windows Workflow Foundation also provides an extensible model and designer to build custom activities that encapsulate workflow functionality for end users or for reuse across multiple projects.

The concepts in this section are inherent to Windows Workflow Foundation. They are briefly described here to provide a basic understanding. The Programming Guide section of this SDK provides implementation details and a deeper level of knowledge.

In the business world, everything is about being “better, faster and cheaper” than the competition — and SQL Server 2005 offers many new features to save energy, time and money. From programming to administrative capabilities, this version of SQL Server tops all others and it enhances many existing SQL Server 2000 features. Here I’ll outline some significant new features in order of importance:

1. T-SQL (Transaction SQL) enhancements
T-SQL is the native set-based RDBMS programming language offering high-performance data access. It now incorporates many new features including error handling via the TRY and CATCH paradigm, Common Table Expressions (CTEs), which return a record set in a statement, and the ability to shift columns to rows and vice versa with the PIVOT and UNPIVOT commands.
2. CLR (Common Language Runtime)
The next major enhancement in SQL Server 2005 is the integration of a .NET compliant language such as C#, ASP.NET or VB.NET to build objects (stored procedures, triggers, functions, etc.). This enables you to execute .NET code in the DBMS to take advantage of the .NET functionality. It is expected to replace extended stored procedures in the SQL Server 2000 environment as well as expand the traditional relational engine capabilities.
3. Service Broker
The Service Broker handles messaging between a sender and receiver in a loosely coupled manner. A message is sent, processed and responded to, completing the transaction. This greatly expands the capabilities of data-driven applications to meet workflow or custom business needs.
4. Data encryption
SQL Server 2000 had no documented or publicly supported functions to encrypt data in a table natively. Organizations had to rely on third-party products to address this need. SQL Server 2005 has native cap

Enterprise Data Platform

• Policy-Based Management
• Performance Data Collection (Data Collector)
• Data Compression
• Resource Governor
• Transparent Data Encryption
• External Key Management / Extensible Key Management
• Data Auditing
• Hot-Add CPUs and Hot-Add Memory
• Streamlined Installation
• Server Group Management
• Upgrade Advisor
• Partition Aligned Indexed Views
• Backup Compression
• Extended Events

Dynamic Development

• Grouping Sets
• MERGE Operator
• LINQ
• Change Data Capture
• Table-Valued Parameters
• ADO.NET Entity Framework and the Entity Data Model
• Synchronization Services for ADO.NET
• CLR Improvements
• Conflict Detection in Peer-to-Peer Replication
• Service Broker Priorities and Diagnostics
• ADO.NET Data Services

By using “Content Editor Web part” we can display PDF File in
SharePoint site.

1. Add a “Content Editor Web part” to your SharePoint page.
2. Click on the “Open the Tool Pane”, click on “Source Editor” to place the HTML source.
3. Place the following piece of code in to the Source Editor and click ok
   <embed height=”500px” width=”500px”
   src=”http://siteurl/test.pdf” type=”application/pdf”>