Visual Studio.NET and.NET Compact Framework Application Development Mike D. Smith Group Program Manager Developer Division Microsoft Corporation.

Visual Studio.NET Visual Studio.NET and .NET Compact and .NET Compact Framework Application Framework Application DevelopmentDevelopment

Mike D. SmithMike D. SmithGroup Program ManagerGroup Program ManagerDeveloper DivisionDeveloper Division

Microsoft CorporationMicrosoft Corporation

AgendaAgenda

Design GoalsDesign Goals Profiles and ExtensionsProfiles and Extensions Class Library ArchitectureClass Library Architecture

Base Class LibrariesBase Class Libraries Networking and Web ServicesNetworking and Web Services

Creating a simple Web ServiceCreating a simple Web Service

Design GoalsDesign Goals CompatibilityCompatibility

Strict compatibility with .NET FrameworkStrict compatibility with .NET Framework Subset functionalitySubset functionality

AppropriatenessAppropriateness Give the developer a known targetGive the developer a known target

Minimize arbitrary divisionMinimize arbitrary division Balance cross device with device specificBalance cross device with device specific

Size / FunctionalitySize / Functionality Support for InnovationSupport for Innovation

Feature set evolutionFeature set evolution Device differentiationDevice differentiation

SecuritySecurity StandardizationStandardization

Library GroupingsLibrary Groupings

Core ProfileCore Profile

PlatformPlatformExtensionExtension

Libraries are grouped in two ways…Libraries are grouped in two ways… Platform ExtensionsPlatform Extensions Core ProfilesCore Profiles

Two Ways to Target .NET CFTwo Ways to Target .NET CF

Core ProfileCore Profile

PlatformPlatformExtensionExtension

Your Your AppApp

Core ProfilesCore Profiles

Coherent collection of class libraries Coherent collection of class libraries and underlying EE supportand underlying EE support

Offered for any device, OS, CPUOffered for any device, OS, CPU By MicrosoftBy Microsoft By Implementers from standards specsBy Implementers from standards specs

Basic foundation / reference starting Basic foundation / reference starting point for building devicespoint for building devices

Enables broad range of scenarios and Enables broad range of scenarios and VS Project typesVS Project types

““Broadest Reach / Lowest-Common Broadest Reach / Lowest-Common Denominator” platform target for appsDenominator” platform target for apps

PlatformPlatformExtensionsExtensions

Core ProfilesCore Profiles

Core ProfilesCore Profiles Kernel ProfileKernel Profile

Minimal language supportMinimal language support

Compact ProfileCompact Profile Foundation profile for all connected Foundation profile for all connected

devicesdevices

Others to comeOthers to come TVTV AutomotiveAutomotive ……

Core ProfilesCore Profiles

PlatformPlatformExtensionsExtensions

Platform ExtensionsPlatform Extensions

Coherent collection of class libraries Coherent collection of class libraries Vendor and/or Device-specificVendor and/or Device-specific Relies on one or more Core ProfilesRelies on one or more Core Profiles Value-add building block for devices Value-add building block for devices

(added atop Profiles)(added atop Profiles) Enables more specialized range of Enables more specialized range of

scenarios and VS Project typesscenarios and VS Project types ““Targeted Reach / Deep Integration” Targeted Reach / Deep Integration”

platform target for appsplatform target for apps

Core ProfilesCore Profiles

PlatformPlatformExtensionsExtensions

Class Library OrganizationClass Library Organization

Namespace scoping mechanismNamespace scoping mechanism

System.IO.FileStream.Open()System.IO.FileStream.Open()

Profiles – System namespace onlyProfiles – System namespace only Extensions – Vendor namespaceExtensions – Vendor namespace

NamespaceNamespace ClassClass MethodMethod

Details: the Compact ProfileDetails: the Compact Profile

Core ProfilesCore Profiles

PlatformPlatformExtensionsExtensions

Compact ProfileCompact Profile

ContentsContents Minimal set of classes for device scenariosMinimal set of classes for device scenarios Support for .NET CF execution engineSupport for .NET CF execution engine

Effective functionality for resource- Effective functionality for resource- constrained devicesconstrained devices

Appropriate subset of .NET Framework Appropriate subset of .NET Framework System classesSystem classes

Class Library ArchitectureClass Library Architecture

Host operating system

PAL

Execution Engine

Compact Profile Class Libraries

Vendor Extensions Application

Native Code

Managed Code

Application

System

System.Data System.Xml

System.Web

Globalization

Text

Security

Collections

Resources

Reflection

Net

IO

Threading

Diagnostics

ServiceProcess

Configuration

Design

ADO

SQLTypes

SQL

XPath

XSLT

RuntimeInteropServices

Remoting

Serialization

Serialization

Configuration SessionState

Caching Security

ServicesDescription

Discovery

Protocols

UIHtmlControls

WebControls

System.Drawing

Imaging

Drawing2D

Text

Printing

System.WinForms

Design ComponentModel

.NET Framework Namespace.NET Framework Namespace

Reader/Writers

Base Data TypesBase Data Types Signed and unsigned 8, 16, 32, and 64 bit Signed and unsigned 8, 16, 32, and 64 bit

integersintegers System.Int16, System.UInt32,…System.Int16, System.UInt32,…

Optional floating pointOptional floating point Included in richer profiles, used appropriatelyIncluded in richer profiles, used appropriately

StringsStrings System.String, System.Text.StringBuilderSystem.String, System.Text.StringBuilder

ArraysArrays System.ArraySystem.Array

Additional value types supportedAdditional value types supported System.DateTimeSystem.DateTime System.TimeSpanSystem.TimeSpan System.URISystem.URI ……

Input / OutputInput / Output Stream based I/O modelStream based I/O model

Synchronous and AsynchronousSynchronous and Asynchronous <stream>.Read(), …, <stream>.BeginRead(), …<stream>.Read(), …, <stream>.BeginRead(), …

Included StreamsIncluded Streams Files Files (System.IO.FileStream, …)(System.IO.FileStream, …) Memory Memory (System.IO.MemoryStream, …)(System.IO.MemoryStream, …) Network Network (System.Net.NetworkStream, …)(System.Net.NetworkStream, …)

Readers and WritersReaders and Writers High level stream processingHigh level stream processing Multiple / complex formatsMultiple / complex formats

Helper classesHelper classes Regular ExpressionsRegular Expressions

System.Text.RegularExpressions, …System.Text.RegularExpressions, …

CollectionsCollections

Mutable ArraysMutable Arrays System.ArrayListSystem.ArrayList

Key-value pair data structuresKey-value pair data structures System.HashtableSystem.Hashtable

All collections may be made strongly typed All collections may be made strongly typed by following a well defined design patternby following a well defined design pattern

GlobalizationGlobalization Unicode implementation throughoutUnicode implementation throughout CultureCulture

Globally selectable at runtimeGlobally selectable at runtime System.Globalization.CultureInfoSystem.Globalization.CultureInfo

String based resources for simple localizationString based resources for simple localization System.ResourcesSystem.Resources

Support forSupport for Retrieving Unicode information about a characterRetrieving Unicode information about a character

System.Globalization.CharacterInfo.*System.Globalization.CharacterInfo.*

Sorting strings based on specified cultureSorting strings based on specified culture Formatting of dates, currency and other data typesFormatting of dates, currency and other data types

Determined by current cultureDetermined by current culture Overridable by System.Globalization.DateTimeFormatInfoOverridable by System.Globalization.DateTimeFormatInfo

NetworkingNetworking Socket level support has full parity with .NET Socket level support has full parity with .NET

FrameworkFramework Multi-protocol socketsMulti-protocol sockets HTTP client & serverHTTP client & server Web services clientWeb services client Connection managementConnection management

High level Request / Response modelHigh level Request / Response model System.Net.{WebRequest,WebResponse} System.Net.{WebRequest,WebResponse}

SSLSSL Secure code download supportSecure code download support

ReflectionReflection

Convenient access to class/method Convenient access to class/method meta-datameta-data System.Reflection.*System.Reflection.*

Allows for late-binding and activationAllows for late-binding and activation

SecuritySecurity

Permission classesPermission classes Control access to system resourcesControl access to system resources

File SystemFile System NetworkNetwork Other resourcesOther resources

Method level granularityMethod level granularity

Configurable PolicyConfigurable Policy

XMLXML

Includes pull model XML parserIncludes pull model XML parser Easy but powerful XML accessEasy but powerful XML access

System.XML.XMLTextReaderSystem.XML.XMLTextReader System.XML.XMLTextWriterSystem.XML.XMLTextWriter

Web ServicesWeb Services

Supports web services as defined by .NET Supports web services as defined by .NET FrameworkFramework

Remote stateless method calls with SOAP Remote stateless method calls with SOAP formatted XML over HTTPformatted XML over HTTP

Allows for rich object based interoperability Allows for rich object based interoperability between all .NET platforms and SOAP between all .NET platforms and SOAP compliant environmentscompliant environments

Seamless to useSeamless to use Uses client proxy code generated by Visual Uses client proxy code generated by Visual

Studio.NETStudio.NET

Based on open standardsBased on open standards

Language access to LibrariesLanguage access to Libraries

The .NET Platform is Language NeutralThe .NET Platform is Language Neutral All .NET languages are first class playersAll .NET languages are first class players Leverage your existing skills and codeLeverage your existing skills and code Access largest community of developersAccess largest community of developers

API access exampleAPI access example [Generic] public virtual Int32 Read(Char[] buffer, Int32 index, Int32 count) [Generic] public virtual Int32 Read(Char[] buffer, Int32 index, Int32 count) [C#] public virtual int Read(Char[] buffer, int index, int count);[C#] public virtual int Read(Char[] buffer, int index, int count); [VB] Public Overridable Function Read(ByVal buffer() As char, ByVal index As [VB] Public Overridable Function Read(ByVal buffer() As char, ByVal index As

Char, ByVal count as Char) As IntegerChar, ByVal count as Char) As Integer [ECMAScript] public override function Read(buffer : char[], index : int, count : [ECMAScript] public override function Read(buffer : char[], index : int, count :

int) : intint) : int [Managed C] …[Managed C] … [COBOL] …[COBOL] …

DemoDemo

Multiple languages (VB, C#)Multiple languages (VB, C#) Regular Expression handlingRegular Expression handling Simple web service accessSimple web service access System.Net.HTTPWebRequestSystem.Net.HTTPWebRequest Easy Deployment to the deviceEasy Deployment to the device

Details: Platform ExtensionsDetails: Platform Extensions

Core ProfilesCore Profiles

PlatformPlatformExtensionsExtensions

Platform Extension ExamplesPlatform Extension Examples

OS-specific or Device/Model-specificOS-specific or Device/Model-specific .NET Extensions for MyCompany OS.NET Extensions for MyCompany OS .NET Extensions for MyCompany Device.NET Extensions for MyCompany Device

Tradeoffs to consider:Tradeoffs to consider: Pro: Increased depth of integrationPro: Increased depth of integration Pro: Increased amount of specializationPro: Increased amount of specialization Con: Reduced reach for appsCon: Reduced reach for apps Con: Reduce reach for DevelopersCon: Reduce reach for Developers

SummarySummary

Class library design goalsClass library design goals Developer and Tool Oriented ViewDeveloper and Tool Oriented View Profiles and ExtensionsProfiles and Extensions Compact Profile overviewCompact Profile overview

Class library detailsClass library details Web services & demonstrationsWeb services & demonstrations

Platform Extension examplesPlatform Extension examples