The 'NET Framework 2'0

1
The .NET Framework 2.0

• What's new?

2
Overview

• Generic New Features
• ADO.NET New Features
• ASP.NET New Features
• Windows Forms New Features
• XML Support New Features

3
Generic New Features

• 64-bit support
• Making efficient use of new generation 64-bit
  computers
• ACL Support
• Create and modify access control lists
• New members utilizing ACLs added to
  security-prone classes

4
Authenticated Streams

• NegotiateStream
• SSLStream
• Support
• Mutual authentication
• Data encryption
• Data signing

5
COM Interop Services

• Llimited number of handles referencing critical
  operating system resources manipulated through
  two new classes
• SafeHandle
• CriticalHandle
• Marshaling improvements
• ability to wrap native function pointers into
  delegates
• ability to marshal fixed-size arrays of
  structures inside structures.
• Faster call performance between applications in
  different application domains
• Type Library tools eliminate dependency on the
  registry to resolve type library references.

6
Console Class Additions

• Console window dimensions
• Screen buffer size
• Smooth simple animations support
• Readkey implementation
• Foreground and background colors
• Cursor size and visibility
• Console beep frequency and duration

7
Data Protection API

• A new API providing encryption without needing
  PInvoke
• E.g. Password encryption
• Ability to encrypt memory blocks on Windows
  Server 2003 and later

8
Debugging

• Display Attributes
• Which members of a class to display whilst
  debugging
• Edit and Continue Support
• Ability to change code during execution

9
Network Connectivity

• Ability to respond to network interface changes
• Disconnected cable
• Wireless LAN out of range
• Hardware failure
• Example sales reps application dynamically
  saving to database server or local storage
  according to network status

10
Distributed Computing

• Support for
• FTP Client requests
• Caching of HTTP resources
• Automatic proxy discovery
• Net traffic and statistical information
• HTTPWebListener
• a Web Server Class
• On Win XP SP2 or Win Server 2003

11
Distributed Computing (cont.)

• TCP channel supports
• Authentication
• Encryption
• Load balancing

12
Generics

• Templates allowing type declarations and
  definitions using unspecified or generic types
• Actual types are specified on use
• Reflection support for Generic types and methods

13
Generics Example

• public class MyListltTgt
• private Node head
• private class Node
• private Node next
• private T data
• public Node(T t) next null data t
• public void AddHead(T t)
• Node n new Node(t) n.Next head head n
  

USAGE EXAMPLE MyListltintgt list new
MyListltintgt()for (int x 0 x lt 10 x)
list.AddHead(x)
14
Globalization

• Support for Custom Cultures
• Unicode-byte mapping failures can be compensated
  by a fallback feature provided in the System.Text
  namespace
• Faster UTF-8 support
• Supports latest Unicode Normalization for
  equivalence comparisons

15
I/O Enhancements

• Read and write data with GZIP compression
• Improvements on text file I/O
• Improvements on acquisition of
• drive information
• TCP and UDP Network traffic
• Network adapter information (like ipconfig)
• Remote computer accessibility (like ping)

16
Ping Example

• Ping pingSender new Ping ()
• PingOptions options new PingOptions ()
• string data "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
• byte buffer Encoding.ASCII.GetBytes (data)
• int timeout 120
• PingReply reply pingSender.Send(args0,buffer,t
  imeout, options)
• if (reply.Status IPStatus.Success)
• Console.WriteLine ("Address 0",
  reply.Address.ToString ())
• Console.WriteLine ("RoundTrip time 0",
  reply.RoundTripTime)
• Console.WriteLine ("Time to live 0",
  reply.Options.Ttl)
• Console.WriteLine ("Buffer size 0",
  reply.Buffer.Length)

17
Further Enhancements

• Programmatic Control web resource Caching
• Additional data provided in SecurityException
  class
• Serial I/O support
• SMTP Support (also for Win Forms)
• Strongly-typed Resource support

18
Version Tolerant Serialization

• ltOptionalField(VersionAdded2)gt _
• Private _age As Integer
• ltOnDeserialized()gt _
• Private Sub OnDeserialized(ByVal context As
  StreamingContext)
• If _age 0 Then
• _age DateTime.Now.Year - _birthDate.Year
• If DateTime.Now.DayOfYear lt _birthDate.DayOfYear
  Then
• _age - 1
• End If
• End If

19
More Enhancements

• Semaphore class for resource counting in
  Threading
• Filtering trace data from I/O and system events
• New System.Transactions namespace
• Web Service asynchronous invocation using an
  event-based paradigm.
• Support for SOAP 1.2 for XML Web Services

20
New Features in

• Event Log management
• Certificate Management
• FTP Client Support

21
New in ADO.NET

• Finding active instances of SQL Server 2000 or
  later on your network
• Asynchronous database operations
• Multiple SQLDataReaders per connection
• Bulk copy operations
• User Defined Types support

22
More ADO.NET New Features

• Work in XML with SQL Server
• SQL Data Provider Statistics
• Batch processing of Dataset updates
• DataTableReader
• a DataReader on a Dataset

23
ASP.NET New Site Management Features

• Manage application settings using the Web
  Administration Tool
• Special folders Code, Data, Resources
• XML-based Site Navigation to create menus and
  treeviews automatically
• Automatic site statistic tracking

24
ASP.NET Page Design Enhancements

• Master Pages for consistent layouts
• Themes for consistent appearance
• Adaptive-Rendering for Browsers
• Support for partial classes as a new code-behind
  model
• Customizing Web pages with Web parts discrete
  pieces of functionality
• User-specific profiles

25
New Web Controls

• GridView
• TreeView
• Navigation Controls
• Security controls
• Graphics
• Statistics
• Implementation of HTML elements
• FileUpload, ImageMap, Hidden

26
New Windows Forms Features

• ClickOnce Deployment
• Non-admins can install self-contained
  applications
• incremental updates
• Application Settings
• User-specific information
• Simplified Data binding of controls
• DataConnector
• New Controls
• Toolstrip,MaskedTextBox,SoundPlayer,SplitContainer
  
• Active Document Hosting (Office Documents)
• Layout Panels
• TableLayout and FlowLayout

27
New XML Support Features

• Support for
• XQuery
• XPath
• Type Support in XMLReaders/Writers
• Node values as Common Types

28
Review

• Generic New Features
• ADO.NET New Features
• ASP.NET New Features
• Windows Forms New Features
• XML Support New Features