private void btnDodaj_Click(object sender, EventArgs e)
        {
            DodajFudbalera formdf = new DodajFudbalera();

            formdf.K = this.K;
            formdf.ShowDialog();
            UcitajDGVIgraci();
        }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            if (!Provera.chkIfSelected(dataGridViewIgraci))
            {
                return;
            }
            DodajFudbalera duform = new DodajFudbalera();

            duform.UpdateItem = dataGridViewIgraci.CurrentRow.DataBoundItem as Fudbaler;
            duform.ShowDialog();
            UcitajDGVIgraci();
        }