private void StartTimeTK_Tick(object sender, EventArgs e) { Control_Screen CS = (Control_Screen)this.ParentForm; CS.LEFTBar.Size = new Size(CS.LEFTBar.Width + 20, CS.LEFTBar.Height); if (CS.LEFTBar.Width >= 245) { CS.LEFTBar.Width = 245; StartTimeTK.Stop(); } }