private void rebuildFiltersFromDDls()
    {
        // recreate list of filters from selected valued of DDLs
        List <DropDownList> ddls = new List <DropDownList>();

        WACGlobal_Methods.GetControlList <DropDownList>(upWACAG_BMPWorkloadFilter.Controls, ddls);
        foreach (DropDownList d in ddls)
        {
            setFilter(d);
        }
    }
    private void clearDDLs()
    {
        // Clear All Items and Selected Values
        List <DropDownList> ddls = new List <DropDownList>();

        WACGlobal_Methods.GetControlList <DropDownList>(upWACAG_BMPWorkloadFilter.Controls, ddls);
        foreach (DropDownList d in ddls)
        {
            d.Items.Clear();
            d.SelectedValue = null;
        }
    }