Data Binding in Depth DEV 419 Level 400 Eyal Vardi CEO Experts4D Microsoft VSTO MVP blog:

Data Binding in DepthDEV 419 Level 400

Data Binding in DepthDEV 419 Level 400

Eyal VardiEyal VardiCEO Experts4DCEO Experts4DMicrosoft VSTO MVPMicrosoft VSTO MVPblog: www.eVardi.comblog: www.eVardi.com

AgendaAgenda

Data Binding OverviewData Binding Overview

BindingSource ClassBindingSource Class

Data Source & InterfacesData Source & Interfaces

Binding Class ImprovementBinding Class Improvement

Application Architecture Application Architecture

BindingBinding

What Can we Bind?What Can we Bind?

One WayOne Way

Two WayTwo Way

.NET Controls.NET ControlsSimple BindingSimple Binding

.NET Controls.NET ControlsComplex BindingComplex Binding

Data ConsumersData ConsumersData ProvidersData Providers

ObjectObject

ArrayListArrayList

DataSetDataSet

Custom CollectionCustom Collection

Config FileConfig File

You can You can onlyonly bind to the public properties bind to the public properties

SimpleSimple

BindingBindingLabel, TextBox, Label, TextBox,

PictureBox, PictureBox, DateTimePickerDateTimePicker

Complex Complex BindingBinding

DataGrid, DataGrid, ComboBox, ComboBox,

ListBoxListBox

Data Binding GoalsData Binding Goals

Run-Time:Run-Time:BindingBinding Data to Controls Data to Controls

SynchronizeSynchronize the data between the controls the data between the controls

FormattingFormatting and and ParsingParsing the data the data

FilterFilter, , Sort Sort andand Search Search the data the data

Design-Time:Design-Time:Simple and fast to implementSimple and fast to implement

Data TemplatesData Templates

Data TemplateData Template

class Addressclass Address{{ string Address {get;set}string Address {get;set} string City {get;set}string City {get;set} string COuntry {get;set}string COuntry {get;set} string PostalCode {get;set}string PostalCode {get;set}}}

User ControlUser Control

Customize Data Source WinCustomize Data Source Win

Need to implement one of the following Need to implement one of the following data binding attributes:data binding attributes:

DefaultDefaultBindingPropertyAttributeBindingPropertyAttribute

ComplexComplexBindingPropertiesAttributeBindingPropertiesAttribute

LookupLookupBindingPropertiesAttributeBindingPropertiesAttribute

Data TemplateData Template

Binding SourceBinding Source

The Binding FlowThe Binding Flow

Bin

din

gS

ou

rce

Bin

din

gS

ou

rce

Dat

aSet

Dat

aSet

Dat

aTab

leD

ataT

able

DataSourceDataSource

DataMemberDataMember

SimpleSimpleControlControl

ComplexComplexControlControl

Co

lum

nC

olu

mnDataBindingDataBinding

PropertyProperty

DataSourceDataSource

BindingSourceBindingSource

* *Don’t forget to add default constructorDon’t forget to add default constructor

Closer look on BindingSourceCloser look on BindingSource

ControlControl BindingSourceBindingSource

Simple BindingSimple Binding

Complex BindingComplex Binding

CurrencyManagerCurrencyManager

ControlControl

Data SourceData Source

BindingBinding

Binding

Binding

BindingContexBindingContexBindingContexBindingContex

BindingSource ClassBindingSource Class(Binding Contex)(Binding Contex)

BindingSource.DataSource =BindingSource.DataSource =

ArrayArray => => NoNo Add & Remove Add & Remove

List<> List<> => Add & Remove=> Add & Remove

TypOf TypOf => Add & Remove=> Add & Remove

new Object()new Object() => Add & Remove=> Add & Remove

**BindingList<> BindingList<> => Add & Remove=> Add & Remove

DataView DataView => Add, Remove, => Add, Remove, Sort, Search, Sort, Search,

FilterFilter** Dervied Class can SupportDervied Class can Support::

Sort, Search and FilterSort, Search and Filter

?

BindingSource ClassBindingSource Class(Sort, Find & Filter)(Sort, Find & Filter)

Data Source & InterfacesData Source & Interfaces

IEnumerable ICollection IList IBindingListIEnumerable ICollection IList IBindingList

.NET 1.x Interfaces.NET 1.x Interfaces

.NET 2.0 New Interface.NET 2.0 New Interface

Build Custom Data SourceBuild Custom Data Source

1.1. Interfaces should be implemented Interfaces should be implemented in your custom collectionin your custom collection

IBindingListViewIBindingListView SortSort

Advanced SortAdvanced Sort

FilterFilter

SearchSearch

Recipe…Recipe…

1)1) Inherit BindingList<>Inherit BindingList<>

2)2) Add Add sortsort and and searchsearch capabilitycapability

3)3) Implement Implement IBindingListView for IBindingListView for getting getting advance sortadvance sort and and filterfilter capability capability

BindingListView<T>BindingListView<T>

Build Custom Data SourceBuild Custom Data Source

2.2. Interfaces should be implemented Interfaces should be implemented in your custom typein your custom type

INotifyPropertyChangedINotifyPropertyChanged

IEditableObjectIEditableObject

IDataErrorInfoIDataErrorInfo

INotifyPropertyChangedINotifyPropertyChanged

IEditableObjectIEditableObject

IDataErrorInfoIDataErrorInfo

New Feature in Binding ClassNew Feature in Binding Class

Update modeUpdate mode

Formatting dataFormatting data

Null ValueNull Value

Error notificationError notification

New Feature in New Feature in Binding ClassBinding Class

Custom Formatting & ParsingCustom Formatting & Parsing

We use theWe use the BindingBinding class events: class events:

FormatFormat, , raised when data is pushed from raised when data is pushed from the data source into the control the data source into the control

ParseParse, , raised when data is pushed from the raised when data is pushed from the control into the data source control into the data source

ControlControl DataDataSourceSource

Parse EventParse Event

Format EventFormat Event

BindingBinding

Type ConversionType Conversion

Custom data type to string, can be done:Custom data type to string, can be done:

Override the Override the ToString()ToString()

Use the Binding Use the Binding FormatFormat event event

Write custom class for conversionWrite custom class for conversion

String to custom data type, can be done:String to custom data type, can be done:

Use the Binding Use the Binding ParseParse event event

Write custom class for conversionWrite custom class for conversion

Custom Formatting & Custom Formatting & Type ConverterType Converter

DataSet Can’t DataSet Can’t Solve All Solve All

your Problemsyour Problems

BooksBooks

www.www.izzyizzybooks.combooks.com

New York! New York!New York! New York!

איך ממלאים משוב?איך ממלאים משוב? בסוף כל יום בסוף כל יום emailemailב - ב -

Beat CenterBeat Centerב -ב -

מה מקבלים?מה מקבלים?Feel The BeatFeel The Beatחולצת חולצת

השתתפות בהגרלת כרטיסי טיסההשתתפות בהגרלת כרטיסי טיסה)לממלאים משוב לכל )לממלאים משוב לכל ועוד... ועוד...i-matei-mateמכשירי מכשירי

DEV419DEV419יום(יום(

Your potential. Our passion. TM