private void PackageLasts_SelectedIndexChanged(object sender, EventArgs e)
        {
            CountPackFile.Visible = true;

            var select = (StructExelModel)PackageLasts.SelectedItem;

            var res = ExelCreator.ListPackageFiles(select.AbsolutPatch);

            CountPackFile.Text = $"Всего в пакете {res.Count} файлов.";
        }
        private void PackFromList_SelectedIndexChanged(object sender, EventArgs e)
        {
            var select = (StructExelModel)PackFromList.SelectedItem;

            var result = fromPack.GetRangePack(
                select.Name.PacNameConvert(),
                fromPack.Max(x => x.DateIndex));

            var cou = result.Sum(exelModel => ExelCreator.ListPackageFiles(exelModel.AbsolutPatch).Count);

            PackToList.DataSource = result;

            if (ChRangPack.Checked)
            {
                CountPackFile.Text = $"Всего в пакете {cou} файлов.";
            }
        }