private void UpdateFiles()
{
if (Directory.Exists(SourcePath))
{
Files.Clear();
var filePathes = Directory.GetFiles(SourcePath, "*", FlattenFolders ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly).ToList();
foreach (var item in filePathes.Select(f => FileViewModel.FromPath(f)))
{
Files.Add(item);
if (!Extensions.Contains(item.Extension))
{
Extensions.Add(item.Extension);
}
}
for (int i = Extensions.Count - 1; i >= 0; --i)
{
if (!Files.Any(f => f.Extension == Extensions[i]))
{
Extensions.Remove(Extensions[i]);
}
}
}
}