File Name을 선택해서 Text 파일 읽기

File Name을 선택해서 Text 파일 읽기

OpenFileDialog dlg = new OpenFileDialog();             dlg.Title = "Open License File";             dlg.Filter = "License File (*.lic)|*.lic";             dlg.FileName = Application.StartupPath + "\\..\\..\\" + filename;             string ActivationKey;             if (dlg.ShowDialog() != DialogResult.OK) return false;             try             {                 System.IO.StreamReader ObjReader = new System.IO.StreamReader(dlg.FileName);                 ActivationKey = ObjReader.ReadLine();                 ObjReader.Close();             }             catch (Exception ex) //General exception             {                 MessageBox.Show(ex.Message);                 return false;             }