private void cboVenueNames_SelectedIndexChanged(object sender, EventArgs e)
        {
            cboYear.SelectedIndex  = -1;
            cboMonth.SelectedIndex = -1;
            cboYear.Items.Clear();
            pnlAnalysis.Visible     = false;
            pnlMonth.Visible        = false;
            pnlYear.Visible         = false;
            btnAnalyseVenue.Visible = false;
            btnReset.Visible        = false;


            if (cboVenueNames.SelectedIndex >= 0)
            {
                Venue ven = new Venue();
                ven.setName(cboVenueNames.Text);
                ven.setVenueDetails();

                List <String> years = ven.getYears();

                if (years.Count > 0)
                {
                    cboYear.Items.AddRange(years.ToArray());
                    pnlYear.Visible = true;
                }
                else
                {
                    MessageBox.Show("There is no analysis available for " + cboVenueNames.Text, "Analysis Unavailable", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    cboVenueNames.SelectedIndex = -1;
                }
            }
        }