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CheckboxControlValueAccessor

A ControlValueAccessor for writing a value and listening to changes on a checkbox input element.

NgModules

选择器

属性

属性说明
onChange: (_: any) => { }

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

onTouched: () => { }

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

说明

Using a checkbox with a reactive form.

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

const rememberLoginControl = new FormControl();
      
      const rememberLoginControl = new FormControl();
    
<input type="checkbox" [formControl]="rememberLoginControl">
      
      <input type="checkbox" [formControl]="rememberLoginControl">
    

方法

Sets the "checked" property on the input element.

writeValue(value: any): void
      
      writeValue(value: any): void
    
参数
value any

The checked value

返回值

void

Registers a function called when the control value changes.

registerOnChange(fn: (_: any) => {}): void
      
      registerOnChange(fn: (_: any) => {}): void
    
参数
fn (_: any) => {}

The callback function

返回值

void

Registers a function called when the control is touched.

registerOnTouched(fn: () => {}): void
      
      registerOnTouched(fn: () => {}): void
    
参数
fn () => {}

The callback function

返回值

void

Sets the "disabled" property on the input element.

setDisabledState(isDisabled: boolean): void
      
      setDisabledState(isDisabled: boolean): void
    
参数
isDisabled boolean

The disabled value

返回值

void