visual basic.net a look into the.net programming model bryan jenks integrated ideas ©2005

Visual Basic .NETVisual Basic .NETA look into the .NET Programming ModelA look into the .NET Programming Model

Bryan Jenks

Integrated Ideas ©2005

VB.NET Programming and the .NET Architecture


Planning and Designing for .NETObject Oriented Programming

ConceptsAdvanced Programming ConceptsMore Advanced Programming

ConceptsData Access Using ADO.NETTesting and Debugging in .NETThe .NET Framework




Bryan Jenks - Integrated Ideas ©2005



Planning and Designing for .NETProgramming Language

HierarchyThe .NET Infrastructure.NET Project TypesDesigning for .NETApplication Design Issues

Planning and Designing for .NETProgramming Language

HierarchyThe .NET Infrastructure.NET Project TypesDesigning for .NETApplication Design Issues


Language HierarchyLanguage Hierarchy

Machine Code

Assembly

Compiler

Runtime Engine (JIT)

Intermediate Language

Un-managed Code

Managed Code

Compiler


.NET Infrastructure.NET Infrastructure

.NET Framework

CLR

Portable Executable

VB C# VJ#

Application Manifest MSIL


ASP.NET ArchitectureASP.NET Architecture

CLR

DATABASEASP.NET

IIS

.NET Framework

HTTP Request In HTTP Response Out

ASP HTML


.NET Projects.NET Projects

Windows ApplicationWeb ApplicationClass LibraryWindows ServiceWeb ServiceControl LibrariesSetup and Deployment

Windows ApplicationWeb ApplicationClass LibraryWindows ServiceWeb ServiceControl LibrariesSetup and Deployment


Designing for .NETDesigning for .NET

Standalone ArchitectureSingle PE

Three-Tier ArchitecturePresentation TierBusiness Logic TierData Tier

N-Tier ArchitectureWeb servicesMobile Applications

Standalone ArchitectureSingle PE

Three-Tier ArchitecturePresentation TierBusiness Logic TierData Tier

N-Tier ArchitectureWeb servicesMobile Applications


Design IssuesDesign Issues

Code ReuseScalabilityMaintainabilityPerformanceSecurityDurability Integration and Interoperability

Code ReuseScalabilityMaintainabilityPerformanceSecurityDurability Integration and Interoperability




Object Oriented Programming ConceptsObject Oriented ProgrammingObjects vs. StructuresMethods, Events, and PropertiesOverloadingInterfaces and Inheritance

Object Oriented Programming ConceptsObject Oriented ProgrammingObjects vs. StructuresMethods, Events, and PropertiesOverloadingInterfaces and Inheritance


Object Oriented Programming

Object Oriented Programming

ObjectsAbstractionEncapsulationPolymorphismInheritance

ObjectsAbstractionEncapsulationPolymorphismInheritance


Object ComponentsObject Components

The ObjectData

MembersProperties

BehaviorMethodsEvents

The ObjectData

MembersProperties

BehaviorMethodsEvents


Objects vs. StructuresObjects vs. Structures

Objects Members Properties Events Methods Instantiation Interfaces Inheritance

Objects Members Properties Events Methods Instantiation Interfaces Inheritance

Structures Members Properties Methods

Structures Members Properties Methods


Objects vs. StructuresObjects vs. Structures

Public Structure Person Public Appendages As Integer Public Male As Boolean Public EyeColor As ColorEnd Structure

Public Class Person Public Appendages As Integer Public Male As Boolean Public EyeColor As ColorEnd Class


MethodsMethods

Public Class Person Private Sub setBaby() ' Baby is born End Sub

Private Function getBaby() As Person ' Baby is returned Return New Person End FunctionEnd Class


EventsEvents

Public Class Person Public Event Birth(ByVal Birtday As Date)

Private Sub getBaby() ' Baby is born RaiseEvent Birth(Now) End SubEnd Class


PropertiesProperties

Public Class Person Private myAppendages As Integer

Public Property Appendages() As Integer Get Return myAppendages End Get Set(ByVal value As Integer) myAppendages = value End Set End PropertyEnd Class


OverloadingOverloading

Public Class Person Private Sub Feed(Food as Integer) ' Person is fed food End Sub

Private Sub Feed(Crap as Double) ' Person is fed crap End SubEnd Class


Interfaces and InheritanceInterfaces and Inheritance

InterfacesEnforces DesignEnsures Compatibility

InheritanceProvides CouplingEnables Code Reuse

[demonstration]

InterfacesEnforces DesignEnsures Compatibility

InheritanceProvides CouplingEnables Code Reuse

[demonstration]




Advanced Programming ConceptsVariables

ScopeArraysCollections

Object Passing and Optional Parameters

Inheritance ControlOverridesShadows

Advanced Programming ConceptsVariables

ScopeArraysCollections

Object Passing and Optional Parameters

Inheritance ControlOverridesShadows


Variable ScopeVariable Scope

DimProtected (Module Level Access)Private (Base Class Level Access)Public (Project Level)Friend (Assembly Level)

StaticShared

DimProtected (Module Level Access)Private (Base Class Level Access)Public (Project Level)Friend (Assembly Level)

StaticShared


Arrays and CollectionsArrays and Collections

Array Size Item(Index)

Array Size Item(Index)

Collection Size Item(Index) Item(Key) Add(Item) Remove(Item) Contains(Item)

Collection Size Item(Index) Item(Key) Add(Item) Remove(Item) Contains(Item)


[Array and collection demonstration]

Object Passing and Parameters

Object Passing and Parameters

Object PassingByRefByVal

Optional ParametersKeyword: Optional= [Default Value]

Object PassingByRefByVal

Optional ParametersKeyword: Optional= [Default Value]


Inheritance ControlInheritance Control

OverridesReplaces inherited member with

permission

ShadowsMasks inherited member

OverridesReplaces inherited member with

permission

ShadowsMasks inherited member


[Inheritance Control demonstration]



More Advanced Programming ConceptsThreadingDelegatesException Handling

Types of ErrorsUnstructured HandlingStructured HandlingRaising and Throwing Exceptions

More Advanced Programming ConceptsThreadingDelegatesException Handling

Types of ErrorsUnstructured HandlingStructured HandlingRaising and Throwing Exceptions


ThreadingThreading

Application Threading ConceptsThe application threadSystem.Threading NamespaceThread.Kill, Sleep, SuspendThreading Issues

Dangling ThreadsSynchronizationThread Safety

Application Threading ConceptsThe application threadSystem.Threading NamespaceThread.Kill, Sleep, SuspendThreading Issues

Dangling ThreadsSynchronizationThread Safety


DelegatesDelegates

Process Flow DelegationThe Delegate KeywordDelegate DeclarationThe AddressOf keywordMulticasting

System.Delegate.Combine

Process Flow DelegationThe Delegate KeywordDelegate DeclarationThe AddressOf keywordMulticasting

System.Delegate.Combine


Exception HandlingException Handling

Types of ErrorsSyntax ErrorsLogic ErrorsRuntime Errors

Types of ErrorsSyntax ErrorsLogic ErrorsRuntime Errors


Unstructured Exception Handling

Unstructured Exception Handling

On Error Goto [location] On Error Resume Next

Benefits Easy to read Simple to implementDrawbacks Difficult to troubleshoot Poorly structured

On Error Goto [location] On Error Resume Next

Benefits Easy to read Simple to implementDrawbacks Difficult to troubleshoot Poorly structured


Structured Exception Handling


The Err Object Try, End Try Catch Finally

Benefits Structured ReliableDrawbacks Complicated Requires Planning

The Err Object Try, End Try Catch Finally

Benefits Structured ReliableDrawbacks Complicated Requires Planning




Throwing ExceptionsThe Exception ClassThrow [Exception]

Raising ErrorsThe error handling heirarchyErr.Raise

Throwing ExceptionsThe Exception ClassThrow [Exception]

Raising ErrorsThe error handling heirarchyErr.Raise




Data Access Using ADO.NETDatabase ConceptsData ConnectionsData AdaptorsDatasetsData Readers

Data Access Using ADO.NETDatabase ConceptsData ConnectionsData AdaptorsDatasetsData Readers


Database ConceptsDatabase Concepts

Flat DatabasesText FilesDBF, DB4, DB5COBOLRelational DatabasesMS AccessSQL ServerOracle

Flat DatabasesText FilesDBF, DB4, DB5COBOLRelational DatabasesMS AccessSQL ServerOracle


Database ConceptsDatabase Concepts

Database ComponentsTablesRelationsConstraintsUsersStored ProceduresUser Defined TypesCatalogs

Database ComponentsTablesRelationsConstraintsUsersStored ProceduresUser Defined TypesCatalogs


Data Access ComponentsData Access Components

Data AdaptorsData ConnectionsDatasetsData Readers

Data AdaptorsData ConnectionsDatasetsData Readers


Data ConnectionsData Connections

Data Connection FeatuesSoftware Channel to DatabasePropagates Authentication Criteria Isolates Data FlowData Connection TypesOleDbODBCSQLClient

Data Connection FeatuesSoftware Channel to DatabasePropagates Authentication Criteria Isolates Data FlowData Connection TypesOleDbODBCSQLClient


Data AdaptorsData Adaptors

Functions of the Data AdaptorUnderstanding the DatabaseMaintaining Query ObjectsMaintaining Query ParametersRetrieving and Updating Data

Functions of the Data AdaptorUnderstanding the DatabaseMaintaining Query ObjectsMaintaining Query ParametersRetrieving and Updating Data


DatasetsDatasets

Dataset ComponentsDataTables

DataColumnsDataRows

RelationsConstraintsXML Interpolation

Dataset ComponentsDataTables

DataColumnsDataRows

RelationsConstraintsXML Interpolation


DataReadersDataReaders

DataReader FeaturesOperates in Connected

ArchitectureLive Data StreamLow memory overhead

DataReader FeaturesOperates in Connected

ArchitectureLive Data StreamLow memory overhead




Testing and Debugging in .NETBreakpointsStepping Through Code

Step IntoStep OverStep Out

Debugging WindowsLocals, Autos, and WatchCall Stack and ThreadsImmediate/Command

Testing and Debugging in .NETBreakpointsStepping Through Code

Step IntoStep OverStep Out

Debugging WindowsLocals, Autos, and WatchCall Stack and ThreadsImmediate/Command




The .NET FrameworkMicrosoftSystem

IOTextWindowsCollectionsNetSecurityThreadingDataWeb

The .NET FrameworkMicrosoftSystem

IOTextWindowsCollectionsNetSecurityThreadingDataWeb


ReferencesReferences

Designing VISUAL BASIC .NET ApplicationsDavid Vitter – CORIOLIS

MSDN Onlinehttp://msdn.microsoft.com

Wikipedia - Object-oriented programminghttp://en.wikipedia.org/wiki/Object-oriented_programming

Designing VISUAL BASIC .NET ApplicationsDavid Vitter – CORIOLIS

MSDN Onlinehttp://msdn.microsoft.com

Wikipedia - Object-oriented programminghttp://en.wikipedia.org/wiki/Object-oriented_programming

visual basic.net a look into the.net programming model bryan jenks integrated ideas ©2005

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