variable accepting more than one value

[anushka]

 Hello  All,

I have created a table where one of the columns is city and it has the following values like Dallas,California,Berlin,Washington. I want this line at the end of my report "This report consolidates data from the following cities:Dallas,California,Berlin,Washington".For this i have created a variable called AllCities and it has the following properties

Name: AllCities

Variable Class: java.lang.String

calculation:system

reset type:report

and this is the expression "This report consolidates data from the following cities:+$V(AllCities)" in summary of ireport

but on compiling i get the following output "This report consolidates data from the following cities:null"

 please tell me where i'm going wrong. Which other property has to be given for the variable AllCities

Thanks