private void commandButtonTestTrack_Click(object sender, EventArgs e) { if (_testTrackForm == null) { _testTrackForm = new FormTestTrack(); _testTrackForm.Show(); _testTrackForm.Disposed += new EventHandler(_testTrackForm_Disposed); } else { _testTrackForm.BringToFront(); _testTrackForm.Focus(); } }
void _testTrackForm_Disposed(object sender, EventArgs e) { _testTrackForm = null; }