Dear Friends

I am using crystal reports 8.5 with MS Access database. I need to generate customer listing while accepting 6 paramerts from user (From/To Country, From/To Province, From/To City). Currently using following formula for selection:

if {?ContFr} = "ALL" then
    if {?ProvFr} = "ALL" then
        if {?CityFr} = "ALL" then
            true
        else
            {QryCust.CityDesc} in {?CityFr} to {?CityTo}
    else
        if {?CityFr} = "ALL" then
            {QryCust.ProvDesc} in {?ProvFr} to {?ProvTo}
        else
            {QryCust.ProvDesc} in {?ProvFr} to {?ProvTo} and
            {QryCust.CityDesc} in {?CityFr} to {?CityTo}
else
    if {?ProvFr} = "ALL" then
        if {?CityFr} = "ALL" then
            {QryCust.ContDesc} in {?ContFr} to {?ContTo}
        else
            {QryCust.ContDesc} in {?ContFr} to {?ContTo} and
            {QryCust.CityDesc} in {?CityFr} to {?CityTo}
    else
        if {?CityFr} = "ALL" then
            {QryCust.ContDesc} in {?ContFr} to {?ContTo} and
            {QryCust.ProvDesc} in {?ProvFr} to {?ProvTo}
        else
            {QryCust.ContDesc} in {?ContFr} to {?ContTo} and
            {QryCust.ProvDesc} in {?ProvFr} to {?ProvTo} and
            {QryCust.CityDesc} in {?CityFr} to {?CityTo}

Just wanted to know if there is any better idea for the same? As I have to generate other reports where I would have to use 10 parameters (5 pairs of From and To) which could get very complicated.

Any advice would highly be appreciated :))

Best Regards

ZEE