private void _addToolButton_Click(object sender, EventArgs e)
{
using (var extAdder = new FileExtensionAdder())
{
var dialogRes = extAdder.ShowDialog(this);
if (dialogRes != DialogResult.OK)
{
var fileExt = extAdder.GetFileExtension();
var fileProvider = new FileProvider();
var persister = new FileExtensionPersister(fileProvider);
persister.SaveFileExtensions(fileExt);
}
}
}
