public override void OnStop() { base.OnStop(); FilePickerActivity filePicker = Activity as FilePickerActivity; if (filePicker != null) { filePicker.FilterEvent -= NewFileFilter; } }
public override void OnStart() { base.OnStart(); _fileNameFilter = null; FilePickerActivity filePicker = Activity as FilePickerActivity; if (filePicker != null) { filePicker.FilterEvent += NewFileFilter; } }