Typescript Type 'string' is not assignable to type (enum)

Have an issue.

While assigning enum value to the enum attribute, getting an error: Type 'string' is not assignable to type 'CountryCode'. Which i suppose i shouldn't get cause both attribute and value are the same enum type

service with enum attribute:

@Injectable()
export class UserData {
  private _country_code: CountryCode;
  private _currency_code: CurrencyCode;

  constructor() { }


  get country_code(): CountryCode {
    return this._country_code;
  }

  set country_code(value: CountryCode) {
    this._country_code = value;
  }
  get currency_code(): CurrencyCode {
    return this._currency_code;
  }
  set currency_code(value: CurrencyCode) {
    this._currency_code = value;
  }
}

enum

export enum CountryCode {
  TH,
  BGD,
}

usage case with an error:

this.userData.country_code = CountryCode[data.country_code];