NgModel class
Creates a form NgControl instance from a domain model and binds it to a form control element. The form NgControl instance tracks the value, user interaction, and validation status of the control and keeps the view synced with the model.
This directive is intended to be used as a stand-alone value. If you would like to use it as part of a larger form, then it must be assigned a name using `ngControl="name". See NgControlName directive for more details.
All you need is the ngModel selector to activate it. For a
two-way binding, use the [(ngModel)] syntax to ensure the model
updates in both directions.
Learn more about ngModel in the Forms and Template Syntax pages.
Examples
<input [(ngModel)]="currentHero.name">
This is equivalent to having separate bindings:
<input
[ngModel]="currentHero.name"
(ngModelChange)="currentHero.name=$event">
Try the live example.
- Inheritance
-
- Object
- AbstractControlDirective<
Control> - NgControl
- NgModel
- Annotations
-
- @Directive(selector: '[ngModel]:not([ngControl]):not([ngFormControl])', providers: [ExistingProvider(NgControl, NgModel)], exportAs: 'ngForm', visibility: Visibility.all)
Constructors
-
NgModel(@Optional() @Self() @Inject(NG_VALIDATORS) List? validators, @Optional() @Self() @Inject(ngValueAccessor) List<
ControlValueAccessor> ? valueAccessors)
Properties
- control → Control
-
no setteroverride
- dirty → bool?
-
no setterinherited
- disabled ↔ bool
-
getter/setter pairoverride-getter
- enabled → bool?
-
no setterinherited
-
errors
→ Map<
String, dynamic> ? -
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- model ← dynamic
-
no getter
- name ↔ String?
-
getter/setter pairinherited
-
path
→ List<
String> -
no setteroverride
- pristine → bool?
-
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- touched → bool?
-
no setterinherited
- untouched → bool?
-
no setterinherited
- update → Stream
-
Updates from the view itself.
no setteroverride
- valid → bool?
-
no setterinherited
- validator → ValidatorFn?
-
finalinherited
- value → dynamic
-
no setterinherited
- valueAccessor ↔ ControlValueAccessor?
-
getter/setter pairinherited
- viewModel ↔ dynamic
-
getter/setter pair
Methods
-
ngAfterChanges(
) → void -
ngOnInit(
) → void - Executed after the first change detection run for a directive.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reset(
{dynamic value}) → void -
Resets the form control.
inherited
-
toggleDisabled(
bool isDisabled) → void -
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
viewToModelUpdate(
dynamic newValue) → void -
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited