Method setControl

packages/forms/src/model/form_group.ts:362–375

(
    name: K,
    control: TControl[K],
    options: {
      emitEvent?: boolean;
    } = {},
  )

  ): void;

  setControl<K extends string & keyof TControl>(
    name: K,
    control: TControl[K],
    options: {
      emitEvent?: boolean;
    } = {},
  ): void {
    const existingControl = this._find(name as string);
    if (existingControl) existingControl._registerOnCollectionChange(() => {});
    delete this.controls[name];
    if (control) this.registerControl(name, control);
    this.updateValueAndValidity({emitEvent: options.emitEvent});
    this._onCollectionChange();
  }

  /**
   * Check whether there is an enabled control with the given name in the group.