Method updateControlDisabledState

src/dev-app/slider/slider-demo.ts:97–102

(input: EventTarget | null)

    this.control.setValue((input as HTMLInputElement).value);
  }
  updateControlDisabledState(input: EventTarget | null): void {
    if (!input) {
      return;
    }
    (input as HTMLInputElement).checked ? this.control.disable() : this.control.enable();
  }
  openDialog() {
    this.dialog.open(SliderDialogDemo, {
      data: {