private void button1_Click(object sender, EventArgs e) { string type = ""; if (textBoxKolona.Text == "") { MessageBox.Show("Morate uneti naziv kolone!"); return; } if (comboBoxTipPolja.SelectedItem.ToString() == "Character" && textBoxAtribut.Text == "") { MessageBox.Show("Popunite duzinu karaktera!"); return; } else { if (PocetnaForma.database == "Oracle") { type = "varchar2(" + textBoxAtribut.Text + ")"; } if (PocetnaForma.database == "MSSQL") { type = "varchar(" + textBoxAtribut.Text + ")"; } } try { if (kki.proveraDaLiPostojiKolonaUTabeli(comboBoxTabele, textBoxKolona) == false) { if (kki.insertIntoColList(comboBoxTabele, comboBoxTipPolja, textBoxKolona, textBoxAtribut.Text) == 1 && kki.kreirajKolonu(comboBoxTabele, textBoxKolona, comboBoxTipPolja, type) == -1) { MessageBox.Show("Kolona je uspesno dodata!"); } } else { MessageBox.Show("Kolona vec postoji u tabeli!"); return; } } catch (Exception ex) { MessageBox.Show("Greska prilikom dodavanja kolone! " + ex.Message); throw; } }