ArcGISCompare.frmMaster.lstAttMappings_SelectedIndexChanged C# (CSharp) Method

        private void lstAttMappings_SelectedIndexChanged(object sender, EventArgs e)
        {
            tcTop.TabPages.Remove(tabPage3);
            if (lstAttMappings.SelectedItems.Count == 1 && tcTop.TabPages.Count == 2)
            {
                theAMap = (AttributeMappingData)lstAttMappings.SelectedItem;
                lstAttMappings.ContextMenuStrip = conMenu;
            }
            lstAttMappings.ContextMenuStrip = null;
            lbSrcAttributes.SelectedIndex = getAttributeOrder(theAMap.srcAtt, lbSrcAttributes);
            lbDestAttributes.SelectedIndex = getAttributeOrder(theAMap.destAtt, lbDestAttributes);
        }