Occasionally Connected Occasionally Connected Smart ClientsSmart ClientsPRS034PRS034

Steve LaskerSteve LaskerProgram ManagerProgram ManagerMicrosoft Microsoft CorporationCorporation

2

AgendaAgenda

Resources for working offlineResources for working offline

Occasionally Connected Systems Occasionally Connected Systems Common ArchitectureCommon Architecture

Demo ScenarioDemo Scenario

Demo ArchitectureDemo ArchitectureEmbedded/Local Database OptionsEmbedded/Local Database Options

Sync OptionsSync Options

Application UpdatesApplication Updates

Running Background Tasks Running Background Tasks Asynchronously Asynchronously

3

What is: Occasionally What is: Occasionally ConnectedConnectedEmpowering users to leverage their Empowering users to leverage their computer, applications, data and files computer, applications, data and files regardless of network availabilityregardless of network availability

Application proactively retrieves necessary Application proactively retrieves necessary data necessary to work offlinedata necessary to work offline

As the network comes available, the As the network comes available, the application will automatically sync their work application will automatically sync their work and log conflicts for the user to resolveand log conflicts for the user to resolve

Network operations occur in the background Network operations occur in the background so the user can stay focused on their taskso the user can stay focused on their task

Example: Outlook 2003Example: Outlook 2003

4

Resources needed offlineResources needed offline

DataDataA subset of the data from the server(s)A subset of the data from the server(s)

Heterogeneous Sync (SQL, Oracle, DB2, …)Heterogeneous Sync (SQL, Oracle, DB2, …)

FilesFilesNot all data exists within the databaseNot all data exists within the database

Media files, Office Files, …Media files, Office Files, …

Application Messaging (Web Services, Application Messaging (Web Services, Indigo, …)Indigo, …)

Ability to queue outbound messagesAbility to queue outbound messages

Ability to async process inbound messagesAbility to async process inbound messages

Read Only Informational/Reference Data Read Only Informational/Reference Data ServicesServices

Ability to pre-fetch data from existing servicesAbility to pre-fetch data from existing services

5

Occasionally Connected Smart ClientOccasionally Connected Smart Client

Background Background TasksTasks

OCS ComponentsOCS ComponentsN

etw

ork

Resou

rces

Netw

ork

Resou

rces Data SyncData Sync

ServicesServices

Embedded APIEmbedded API

Embedded Embedded Data StoreData Store

Message Message QueuingQueuing

Message Message CachingCaching

FilesFiles

File SyncFile SyncServicesServices

Microsoft Windows / Windows MobileMicrosoft Windows / Windows Mobile

Vis

ual S

tud

ioV

isu

al S

tud

io

Smart Client Application / UISmart Client Application / UI

Application Application UpdatesUpdates

Canned Canned UI UI

ControlsControls

6

Data Center Smart Client

Sales

Fulfillment

Inventory

Logi

c

LogicRules

LogicRules

LogicRules

EmbeddedData Store

Rules

UI

Logic

Occasionally Connected Occasionally Connected ArchitectureArchitecture

Logic

Sync

Transport

Logic

Netw

ork

Resou

rces

Netw

ork

Resou

rces

Backg

rou

nd

Tasks

Backg

rou

nd

Tasks

SyncClient

IndigoC

acheIndigoQ

ueue

AppUpdates

Acc

ounti

ng

AppDeployment

FilesFiles

7

Adventure Works SalesAdventure Works Sales

Field SalesField SalesMulti-level marketingMulti-level marketing

Consumers sell Adventure Works Consumers sell Adventure Works ProductsProductsNeed for the app to run disconnectedNeed for the app to run disconnectedSellers are independentSellers are independent

Hardware not owned by Adventure WorksHardware not owned by Adventure Works

Many platformsMany platformsBrowserBrowserDesktopDesktopTablet PCTablet PCPocket PCPocket PCSmart PhoneSmart Phone

8

AdventureWorks Sales AppAdventureWorks Sales App

9

Adventure Works SalesAdventure Works SalesSmart ClientSmart Client

Background Background TasksTasks

Adventure Adventure Works CorpWorks Corp

Adventure Works Sales Adventure Works Sales ArchitectureArchitecture

Netw

ork

Serv

ices

Netw

ork

Serv

ices

SyncSyncServicesServices

EmbeddedEmbeddedData StoreData Store

WeatherWeatherCachingCaching

Order Order SubmissioSubmission Queuen Queue PromoPromo

VideosVideos

App LogicApp Logic

Desktop Desktop TabletPTabletP

CCPocketPCPocketPC Smart Smart

PhonePhone

DataDataServerServer

Syn

cS

yn

cS

erv

icS

erv

ices

es

Ord

er

Ord

er

Serv

icS

erv

ices

es

WeatheWeatherr

ServiceServicess

•Product Product CatalogCatalog•My CustomersMy Customers•Order Order ScratchpadScratchpad•My InventoryMy Inventory

App App UpdatesUpdates

10

Which local data store?Which local data store?

MS Database Technologies MS Database Technologies SQL Server 2005SQL Server 2005

SQL Workgroup 2005SQL Workgroup 2005

SQL Express 2005SQL Express 2005

SQL Mobile 2005SQL Mobile 2005Jet Jet (Access)(Access)

FoxFox

ExcelExcel

XMLXML

Something newSomething new

11

Occasionally Connected Occasionally Connected DevicesDevices

ServersServers

DesktopsDesktops

LaptopsLaptops

Tablet PC’sTablet PC’s

Windows CEWindows CE

Pocket PCPocket PC

Smart PhoneSmart Phone

??

Win 32Win 32Sweet Sweet spotspot

12

Local Database OptionsLocal Database Options

Server (1000’s of users)

Workgroup (Dozens of users)

Desktop (Single User)

Laptop

Tablet PC

Windows CE Device

Pocket PC

Smart Phone

Win 32Win 32

SQ

L M

ob

ile S

QL

Exp

ress

SQ

LS

erv

er

Mu

ltiU

ser

Sin

gle

Use

r S

cena

rios

13

SQL Express w/SyncSQL Express w/Sync

SQL Express now has User Instance SQL Express now has User Instance featuresfeatures

Great for VS DevelopmentGreat for VS Development

Connect w/File Path Connection StringConnect w/File Path Connection String

Merge Replication not supported Merge Replication not supported w/User Instancesw/User Instances

14

Deploying SQL Express for Deploying SQL Express for OCSOCS

Add DBO Privileged AccountAdd DBO Privileged Account

Script creation of databaseScript creation of database

Verify / Create / Attach database at Verify / Create / Attach database at startupstartup

Deploy SQL Replication .DllsDeploy SQL Replication .Dlls

15

Configuring SQL Express Configuring SQL Express w/Merge Replw/Merge Repl

16

Deploying SQL MobileDeploying SQL Mobile

SqlMobile Engine:SqlMobile Engine:Add runtime dlls to project (sqlce*.dll) Add runtime dlls to project (sqlce*.dll) C:\Program Files\Microsoft Visual Studio 8\Common7\IDEC:\Program Files\Microsoft Visual Studio 8\Common7\IDE

Set files to Set files to Copy to Output Directory = Copy if newerCopy to Output Directory = Copy if newer

ADO for SqlMobile:ADO for SqlMobile:Add reference to Microsoft SQL Mobile Add reference to Microsoft SQL Mobile

Located in: Located in: C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PublicAssemblies\System.Data.SqlServerCE.dllPublicAssemblies\System.Data.SqlServerCE.dll

17

Deploying SQL MobileDeploying SQL Mobile

18

How - To Cache How - To Cache

Roll your ownRoll your ownUltimate in flexibilityUltimate in flexibilityHighest cost to develop and maintainHighest cost to develop and maintain

RDARDAEasy entry point for well partitioned data, no config to databaseEasy entry point for well partitioned data, no config to databaseLimited to SQL MobileLimited to SQL Mobile

Merge ReplicationMerge ReplicationMost power, broadest features for different data partitions, spans all devicesMost power, broadest features for different data partitions, spans all devicesNeed DBO/DBA privileges, must “own” serverNeed DBO/DBA privileges, must “own” server

Transactional ReplicationTransactional ReplicationPrimarily targeted towards server to server replication scenarios. Primarily targeted towards server to server replication scenarios. Good for regional distribution but not great for occasionally connected scenariosGood for regional distribution but not great for occasionally connected scenarios

TechnologyTechnology Roll your Roll your ownown RDARDA

MergeMerge

ReplicatioReplicationn

TransactionalTransactional

ReplicationReplication

XML - DataSetsXML - DataSets SQL ExpressSQL Express SQL MobileSQL Mobile

19

Configuring Merge Configuring Merge ReplicationReplication

20

Remote Data Access (RDA)Remote Data Access (RDA)

21

App Updates w/ClickOnceApp Updates w/ClickOnce

ClickOnce Background API’sClickOnce Background API’s

Imports System.Deployment.Application.ApplicationDeployment…CurrentDeployment.Update()

22

App Updates - ClickOnceApp Updates - ClickOnce

23

Background TasksBackground Tasks

Code running on background threadsCode running on background threads

Watching for Network ResourcesWatching for Network ResourcesSending OrdersSending Orders

Looking to syncLooking to sync

Pre-Fetching Weather InformationPre-Fetching Weather Information

24

Background TasksBackground Tasks

26

ResourcesResources

Data Designers & Occasionally Connected Systems Discussions:http://blogs.msdn.com/SmartClientData

Data Runtime:http://msdn.Microsoft.com/Data/

Windows Forms: http://www.WindowsForms.net

Patterns & Practices: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag/html/SCAG.asp

27

Community ResourcesCommunity ResourcesAt PDCAt PDC

For more information, go seeFor more information, go seeTue 1pm & 4:15pm PRS402 Tue 1pm & 4:15pm PRS402 Windows Forms: Harnessing the Power and Flexibility Windows Forms: Harnessing the Power and Flexibility of Windows Forms 2.0of Windows Forms 2.0Thur 11:30am PRS321Thur 11:30am PRS321Windows Forms: Integrating Windows Forms and Windows Windows Forms: Integrating Windows Forms and Windows Presentation Foundation ("Avalon")Presentation Foundation ("Avalon")Fri 1pm FUN222Fri 1pm FUN222Windows Vista: What’s New in Software Installation for Windows Vista: What’s New in Software Installation for Windows Vista: Exploring the Windows Installer (MSI) and Windows Vista: Exploring the Windows Installer (MSI) and ClickOnce OptionsClickOnce OptionsLabs: Labs:

FUNHOL15 ClickOnce Deployment FUNHOL15 ClickOnce Deployment PRSHOL17 New UI Features in Windows Forms PRSHOL17 New UI Features in Windows Forms PRSHOL18 New Data Features in Windows Forms PRSHOL18 New Data Features in Windows Forms PRSHOL19 Windows Forms: Advanced Layout PRSHOL19 Windows Forms: Advanced Layout

Ask The ExpertsAsk The Experts

After PDCAfter PDCMSDN dev center: MSDN dev center: http://msdn.microsoft.com/windowsforms/http://msdn.microsoft.com/windowsforms/MSDN Forums: MSDN Forums: http://forums.microsoft.com/msdn/default.aspx?http://forums.microsoft.com/msdn/default.aspx?ForumGroupID=2 ForumGroupID=2

28

Questions, Contact, and More Questions, Contact, and More InfoInfo

SteveLas@Microsoft.comSteveLas@Microsoft.com

http://blogs.msdn.com/http://blogs.msdn.com/SmartClientDataSmartClientData

© 2005 Microsoft Corporation. All rights reserved.This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.

30

Existing ArchitecturesExisting Architectures

31

Local Data App

UI

Standalone Application Standalone Application EvolutionEvolution

Validation Logic

LocalDatabase

DAL

CentralDatabase

32

Data Island Data Island Shared Shared DataData

Users lose offline functionalityUsers lose offline functionality

Applications aren’t typically written Applications aren’t typically written with multi-user in mindwith multi-user in mind

Rearchitecture typically required to Rearchitecture typically required to make multi-usermake multi-user

33

Smart Client

Sales

Fulfillment

Accounting

Inventory

Logic

Web S

ervice

Logic

LogicRules

LogicRules

LogicRules

DataSets over Web DataSets over Web ServicesServices

Web S

erviceC

lient

Controls

Validation Logic*

CustomersCustomers

XMLXML

OrdersOrders

XMLXML

SELECT *SELECT *FROM CustomersFROM Customers

34

DataSet CachingDataSet Caching

Excellent for serialization and change Excellent for serialization and change trackingtracking

Contain different views of the same dataContain different views of the same data

Storage is based on XML / BinaryStorage is based on XML / BinaryQuerying requires loading the entire dataset Querying requires loading the entire dataset into memory *into memory *

Updating the local dataset requires loading the Updating the local dataset requires loading the entire dataset into memory entire dataset into memory

Transaction support *Transaction support *

Query processor *Query processor *

No canned, E2E, sync technologyNo canned, E2E, sync technologyHas change tracking w/DataAdaptersHas change tracking w/DataAdapters

XML DiffGram basedXML DiffGram based

35

Smart Client

Service

Cache

Sales

Fulfillment

Accounting

Inventory

Logic

Service

Logic

LogicRules

LogicRules

LogicRules

Message Based Queuing / Message Based Queuing / CachingCaching

ServiceC

lient

Controls

Validation Logic*

CustomersCustomersOrdersOrders

SELECT *SELECT *FROM CustomersFROM Customers

36

Message Based CachingMessage Based Caching

Similar to DataSet CachingSimilar to DataSet Caching

Blobs are now stored in queuesBlobs are now stored in queues

No ability to query on uncommitted No ability to query on uncommitted datadata

37

Logical QueuingLogical Queuing

Sending mail in outlookSending mail in outlookPressing send a little too quicklyPressing send a little too quickly

Submitting Expense ReportsSubmitting Expense ReportsFound a receipt in the bottom of your Found a receipt in the bottom of your bagbag

38

Logical QueuingLogical Queuing

39

Sync ComponentsSync Components

Occasionally Connected Systems ServicesOccasionally Connected Systems Services

Sync GroupsSync Groups

Sync Group ItemsSync Group Items

File File ItemsItems

DatabasDatabase Itemse Items

Message Message ItemsItems

Message Message Pre-Pre-

Fetch Fetch ItemsItems

App App Update Update ItemsItems