W3cubDocs

/Angular

RootFieldContext

The base field context that is available for all fields.

API

interface RootFieldContext<TValue> {
  readonly value: Signal<TValue>;
  readonly state: FieldState<TValue, string | number>;
  readonly fieldTree: FieldTree<TValue, string | number>;
  valueOf<PValue>(p: SchemaPath<PValue, SchemaPathRules, Root>): PValue;
  stateOf<PControl extends AbstractControl>(p: CompatSchemaPath<PControl, Root>): CompatFieldState<PControl, string | number>;
  stateOf<PValue>(p: SchemaPath<PValue, SchemaPathRules, Root>): FieldState<PValue, string | number>;
  fieldTreeOf<PModel>(p: SchemaPathTree<PModel, Root>): FieldTree<PModel, string | number>;
  readonly pathKeys: Signal<readonly string[]>;
}

value

Signal<TValue>

A signal containing the value of the current field.

state

FieldState<TValue, string | number>

The state of the current field.

fieldTree

FieldTree<TValue, string | number>

The current field.

valueOf

PValue

Gets the value of the field represented by the given path.

@parampSchemaPath<PValue, SchemaPathRules, Root>
@returnsPValue

stateOf

CompatFieldState<PControl, string | number>

Gets the state of the field represented by the given path.

@parampCompatSchemaPath<PControl, Root>
@returnsCompatFieldState<PControl, string | number>

stateOf

FieldState<PValue, string | number>
@parampSchemaPath<PValue, SchemaPathRules, Root>
@returnsFieldState<PValue, string | number>

fieldTreeOf

FieldTree<PModel, string | number>

Gets the field represented by the given path.

@parampSchemaPathTree<PModel, Root>
@returnsFieldTree<PModel, string | number>

pathKeys

Signal<readonly string[]>

The list of keys that lead from the root field to the current field.

Super-powered by Google ©2010–2025.
Code licensed under an MIT-style License. Documentation licensed under CC BY 4.0.
https://angular.dev/api/forms/signals/RootFieldContext