private void FormImageGallery_Load(object sender, EventArgs e) { xtraTabControlGroups.TabPages.Clear(); foreach (var imageGroup in _imageGroups) { var tabPage = new ImageGroupPage(imageGroup); tabPage.DoubleClicked += OnGroupDoubleClick; xtraTabControlGroups.TabPages.Add(tabPage); } xtraTabControlGroups.ShowTabHeader = _imageGroups.Count() > 1 ? DefaultBoolean.True : DefaultBoolean.False; }