private void AddFoldersButtonClick(object sender, EventArgs e)
 {
     var dlg = new FolderBrowserDialog();
     dlg.Description = "Select a root folder to start processing fat folders.";
     var result = dlg.ShowDialog(this);
     if (result == DialogResult.OK && !string.IsNullOrEmpty(dlg.SelectedPath) && Directory.Exists(dlg.SelectedPath))
     {
         var processingDialog = new ProcessingDialog(dlg.SelectedPath, _result);
         processingDialog.ShowDialog(this);
         FoldersListView.VirtualListSize = _result.Count;
         TotalSizeValueLabel.Text = Utils.FormatSize(_result.TotalSize);
     }
 }
        private void AddFoldersButtonClick(object sender, EventArgs e)
        {
            var dlg = new FolderBrowserDialog();

            dlg.Description = "Select a root folder to start processing fat folders.";
            var result = dlg.ShowDialog(this);

            if (result == DialogResult.OK && !string.IsNullOrEmpty(dlg.SelectedPath) && Directory.Exists(dlg.SelectedPath))
            {
                var processingDialog = new ProcessingDialog(dlg.SelectedPath, _result);
                processingDialog.ShowDialog(this);
                FoldersListView.VirtualListSize = _result.Count;
                TotalSizeValueLabel.Text        = Utils.FormatSize(_result.TotalSize);
            }
        }