protected void btnSpoorReserveren_Click(object sender, EventArgs e) { try { bc = new BeheerController(); int spoornummer = Convert.ToInt32(ddlSpoorReserverenSpoor.SelectedItem.Text); int tramnummer = Convert.ToInt32(ddlSpoorReserverenTram.SelectedItem.Text); Spoor s = bc.GetSpoorByNummer(spoornummer); Tram t = bc.GetTramByNummer(tramnummer); bc.SpoorReserveren(s, t); Response.Redirect(Request.RawUrl); } catch (Exception ex) { string script = "alert(\" " + ex.Message + "\");"; ScriptManager.RegisterStartupScript(this, GetType(), "ServerControlScript", script, true); } }