Editor.MainWindow.invertVisibilityToolStripMenuItem_Click C# (CSharp) Method

        private void invertVisibilityToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.updating = true;
             foreach (Item p in this.GetCurrent().Items)
            p.IsVisible = !p.IsVisible;
             this.updating = false;
             this.UpdateControls();
        }