private async void frmResourceFinder_Load(object sender, EventArgs e)
        {
            Areas = new AreasKeeper();
            await Areas.Refresh();

            cmbArea.DataSource    = Areas.Items;
            cmbArea.ValueMember   = "AreaId";
            cmbArea.DisplayMember = "Name";
            Sets = new SetsKeeper();
            await Sets.Refresh();

            Places = new PlacesKeeper();
            await Places.Refresh(null, 'a');
        }