private void OpenFileDialog() { OpenFileDialog choofdlog = new OpenFileDialog(); FilePath.Text = String.Empty; choofdlog.Filter = "All Files (*.*)|*.*"; choofdlog.FilterIndex = 1; choofdlog.Multiselect = true; if (!choofdlog.ShowDialog() == DialogResult.HasValue) { FilePath.AppendText(choofdlog.FileName); } }