Surpassing Null Values in Crystal Report

Question

Dear All,

 

I am creating a crystal report in which  i how show address in this format for every school

ADD1

ADD2

ADD3

CITY

DIST

PINCODE

 

and i am fetching data from database, all the above column have some NULL values in it like for SCHOOL A - ADD1,ADD2,ADD3 have NULL values and for school  B ADD2,ADD3 and CITY have NULL values and same like rest schools have some null values now when i am writing formula for first school

 

IF ISNULL({TEMP_PAY.ADD1})THEN
(
IF ISNULL({TEMP_PAY.ADD2}) THEN
(
IF ISNULL({TEMP_PAY.ADD3})THEN
(
IF ISNULL({TEMP_PAY.CITY})THEN
(
IF ISNULL({TEMP_PAY.DIST})THEN
{TEMP_PAY.PIN}
ELSE
{TEMP_PAY.DIST}
)
ELSE
{TEMP_PAY.CITY}
)
ELSE
{TEMP_PAY.ADD3}
)
ELSE
{TEMP_PAY.ADD2}
)
ELSE
{TEMP_PAY.ADD1}

then the first address of all the schools are showing correct but when i put same formula with other parameters then first Scool give duplicate CITY and rest scool are the same and some gets correct 

 

i want that where there is NULL it should escape the field and give the next field which have some value for the all above fields help me for the same as soon as possible as i have searched lot for the same issue but did not get any help....

 

 Regards

Sanjeev