• Overview
@angular/forms

RangeValueAccessor

directive

The ControlValueAccessor for writing a range value and listening to range input changes. The value accessor is used by the FormControlDirective, FormControlName, and NgModel directives.

API

  
    class RangeValueAccessor extends BuiltInControlValueAccessor implements ControlValueAccessor {}
  
  

writeValue

void

Sets the "value" property on the input element.

@paramvalueany
@returnsvoid

registerOnChange

void

Registers a function called when the control value changes.

@paramfn(_: number | null) => void
@returnsvoid

onChange

(_: any) => void

The registered callback function called when a change or input event occurs on the input element.

onTouched

() => void

The registered callback function called when a blur event occurs on the input element.

setProperty

void

Helper method that sets a property on a target element using the current Renderer implementation.

@paramkeystring
@paramvalueany
@returnsvoid

registerOnTouched

void

Registers a function called when the control is touched.

@paramfn() => void
@returnsvoid

setDisabledState

void

Sets the "disabled" property on the range input element.

@paramisDisabledboolean
@returnsvoid

Description

The ControlValueAccessor for writing a range value and listening to range input changes. The value accessor is used by the FormControlDirective, FormControlName, and NgModel directives.


Exported by

Usage Notes

Using a range input with a reactive form

The following example shows how to use a range input with a reactive form.

          
const ageControl = new FormControl();
          
<input type="range" [formControl]="ageControl">
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