This
topic contains information about new and enhanced features in the .NET
Framework version 3.5 Service Pack 1.
ASP.NET
New
ASP.NET features include ASP.NET Dynamic Data, which provides a rich
scaffolding framework that allows rapid data driven development without writing
code, and an addition to ASP.NET AJAX that provides support for managing
browser history (back button support). For more information, see What’s New in
ASP.NET and Web Development.
Common Language Runtime
Core
improvements to the common language runtime include the following:
Improved
application startup and working set performance.
Better
layout of .NET Framework native images.
Opting
out of strong-name verification of fully trusted assemblies.
Better
generated code that improves end-to-end application execution time.
Detecting
approaching full garbage collections with Garbage Collection Notifications.
Opting
for managed code to run in ASLR (Address Space Layout Randomization) if
supported by the operating system.
Managed
applications that are opened from network shares have the same behavior as
native applications by running with full trust.
.NET Framework Client Profile
The
.NET Framework Client Profile is a subset of the full .NET Framework that targets
client applications. This improves the installation experience on computers
that do not already have the .NET Framework installed.
Networking
Enhancements
have been made that affect how integrated Windows authentication is handled by
the HttpWebRequest, HttpListener, SmtpClient, SslStream, NegotiateStream, and
related classes in the System.Net and related namespaces. Support was added for
extended protection to enhance security. The changes to support extended
protection are available only for applications on Windows 7 and Windows Server
2008 R2. The extended protection features are not available on earlier versions
of Windows. For more information, see Integrated Windows Authentication with
Extended Protection.
Windows Presentation Foundation
Performance
improvements have been made to Windows Presentation Foundation, including a
faster startup time and improved performance for Bitmap effects. Additional
functionality for Windows Presentation Foundation includes better support for
line of business applications, native splash screen support, DirectX pixel
shader support, and the new WebBrowser control.
ClickOnce
ClickOnce
application publishers can decide to opt out of signing and hashing as
appropriate for their scenarios, developers can programmatically install
ClickOnce applications that display a customized branding, and ClickOnce error
dialog boxes support links to application-specific support sites on the Web.
For more information about ClickOnce, see ClickOnce Deployment for Windows Forms
Applications.
Accessing Data with ADO.NET
The
.NET Framework Data Provider for SQL Server (System.Data.SqlClient) provides
full support for all the new features of the SQL Server 2008 Database Engine.
For more information about .NET Framework support for SQL Server 2008, see New
Features in SQL Server 2008 (ADO.NET).
The
ADO.NET Data Platform is a multi-release strategy to decrease the amount of
coding and maintenance required for developers by enabling them to program
against conceptual entity data models. This platform includes the ADO.NET
Entity Framework, the Entity Data Model (EDM), Object Services, LINQ to
Entities, Entity SQL, EntityClient, ADO.NET Data Services and Entity Data Model
Tools. For more information, see ADO.NET Technology Options and Guidelines.
Windows Communication Foundation
The
Windows Communication Foundation (WCF) now makes the DataContract Serializer
easier to use by providing improved interoperability support, enhancing the
debugging experience in partial trust scenarios, and extending syndication
protocol support for wider usage in Web 2.0 applications.
Windows Forms Controls
The
Microsoft.VisualBasic.PowerPacks namespace introduces the new DataRepeater
control that displays data in a customizable list format. This namespace also
includes new vector shapes.
