internal void SelectImgBox(ImageBox imgBox) { if (this.selectedImgBox != imgBox || this.selectedImgBox == null) { if (this.selectedImgBox != null) { this.selectedImgBox.Selected = false; } this.selectedImgBox = imgBox; if (imgBox != null) { this.selectedImgBox.Selected = true; } OnSelectedChanged(new EventArgs()); } }