How to delete temporary files in C#

string path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
 System.IO.DirectoryInfo di = new DirectoryInfo(path);
 foreach (FileInfo file in di.GetFiles())
 {
        try { file.Delete(); }
        catch { }
 }
 foreach (DirectoryInfo dir in di.GetDirectories())
 {
        try { dir.Delete(true); }
        catch { }
 }