Function ngDoCheck

src/material/datepicker/date-range-input-parts.ts:122–131

()

  }

  ngDoCheck() {
    if (this.ngControl) {
      // We need to re-evaluate this on every change detection cycle, because there are some
      // error triggers that we can't subscribe to (e.g. parent form submissions). This means
      // that whatever logic is in here has to be super lean or we risk destroying the performance.
      this.updateErrorState();
    }

    this._rawValue.set(this._elementRef.nativeElement.value);
  }

  /** Gets whether the input is empty. */
  isEmpty(): boolean {