Query.cs

    public async Task<ResultMultiple<Share>> QuerySharesAsync(
        bool doCache = true, bool throwIfError = true)
    {
        Share shareSeed = new Share();
        shareSeed.OwnedBy = _selectedIndustry;

        ResultMultiple<Share> result = await ResultMultipleUI<Share>.WaitForObjectAsync(
            backend, throwIfError, shareSeed, doCache);

        if (result.Code >= 0)
        {
            Shares = result.Data.Payload;
            SelectedShare = _shares.FirstOrDefault();
        }

        return result;
    }