private async Task StartProcess()
{
var sourceFileList = fileListBox.Items.Cast <ListBoxItem>()
.Select(lbi => lbi.Tag.ToString())
.ToList();
progressBar.Visibility = Visibility.Visible;
progressBar.Maximum = sourceFileList.Count;
var progress = new Progress <TaskProgress>(prog =>
{
progressMessageTextBox.Text = prog.StatusMessage;
progressBar.Value = prog.ProcessedInputCount;
});
var outputFilePath = outputFileNameTextBox.Text;
var converter = new ImageToPdfConverter(sourceFileList, outputFilePath, _inputFileHandlingStrategy);
await Task.Run(() => converter.ConvertImagesToPdf(progress));
}
