private void tabControl_SelectedIndexChanged(object sender, EventArgs e) { if (tabControl.SelectedTab == tabControl.TabPages["tpParties"]) { lbParties.Items.Clear(); foreach (Party party in sql.LoadAllParties()) { lbParties.Items.Add(party); } } else if (tabControl.SelectedTab == tabControl.TabPages["tpResults"]) { } else if (tabControl.SelectedTab == tabControl.TabPages["tpCoalition"]) { cbCoaltion.Items.Clear(); foreach (Coalition coalition in sql.LoadAllCoalitions()) { cbCoaltion.Items.Add(coalition); } } }