private void View() { if (this.PhieuNhapThuocEditChild == null) { this.PhieuNhapThuocEditChild = new PhieuNhapThuocEdit(); PageAnimation.back.Children.Add(this.PhieuNhapThuocEditChild); } Messenger.Default.Send(new ChildMessage() { currentObject = this.currentSelectItem, isEdit = false, action = ActionMenuButton.View, level = "Main" }); PageAnimation.ToBack(); }