private void modificaToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (listaImprumut.SelectedItems.Count == 0)
     {
         return;
     }
     else
     {
         var imprumutMod = (Imprumut)listaImprumut.SelectedItems[0].Tag;
         using (var formularModificaContract = new FormContract(imprumutMod))
         {
             if (formularModificaContract.ShowDialog(this) == DialogResult.OK)
             {
                 formularModificaContract.modificareAdaugareRestituire();
             }
         }
     }
 }
        private void listaImprumut_DoubleClick(object sender, EventArgs e)
        {
            if (listaImprumut.SelectedItems.Count == 0)
            {
                return;
            }
            else
            {
                var imprumutMod = (Imprumut)listaImprumut.SelectedItems[0].Tag;
                using (var formularModificaContract = new FormContract(imprumutMod))
                {
                    if (formularModificaContract.ShowDialog(this) == DialogResult.OK)
                    {
                        listaImprumut.Items.Clear();
                        formularModificaContract.modificareAdaugareRestituire();

                        afisareImprumuturi();
                    }
                }
            }
        }