Data Binding Without INotifyPropertyChanged Image Credit:

Data BindingWithout INotifyPropertyChanged

Image Credit:

Slides and Code• updatecontrols.net/doc/inpc

Michael L Perry• qedcode.com• @MichaelLPerry• Update Controls• Correspondence• Client App Dev

Dan Bricklin and Bob Frankston

y=1/(1+x2)

-3 -2 -1 0 1 2 30

0.2

0.4

0.6

0.8

1

1.2

Stateful View Models

PersonListViewModel PersonViewModelFirstNameLastNameFullName

Name Changed

Name Changed

Person Selected

Person Selected

PersonSummaryFullName

Stateless View Models

PersonListViewModel PersonViewModel

PersonList PersonFirstNameLastName

PersonSummary

NavigationSeletedPerson

IndependentDependent

Two Way Connection

**

UpdatingPersonViewModel

PersonView

Person(Model)

TextBlock get _firstName_lastName

FullName

DependentIndependent

Independent“FullName”

ModifyingPersonViewModel

PersonView

Person(Model)

TextBlock get _firstName_lastName

DependentIndependent

Independent

TextBox FirstName set

“FullName”

MVVM Idioms• Dependent Properties• Dual• Tuple• Navigation• Equals/GetHashCode• Command Binding

Michael L Perry• @MichaelLPerry• [email protected]• updatecontrols.codeplex.com• updatecontrols.net/doc/inpc