private void mnDodajElement_Click(object sender, EventArgs e) { if (clickedItem == null || clickedItem.Element != null) { return; } clearClipboard(); ElementForm form = new ElementForm(null, selectedSprava(), selectedGrupa(), clickedItem.Broj, Element.getTezina(clickedItem.Broj)); if (form.ShowDialog() == DialogResult.OK) { tabela.addElement(form.Element, false); panelTabela.Invalidate(); panelTabela.Focus(); } }