protected void delete_Click(object sender, EventArgs e)
 {
     try
     {
         int id = int.Parse(testDrop.SelectedItem.Value.ToString());
         SQL sql = new SQL();
         bool check = sql.preTestCleanChecks(id);
         if (check)
         {
             error.InnerText = "There are still users associated with the following test id: " + id;
             error.Visible = true;
         }
         else
         {
             sql.cleanupTests(id);
             Reload();
         }
     }
     catch (Exception)
     {
         error.Visible = true;
     }
 }