Loop through GetPossibleValue list and use it in set expression of straight chart to match Field Name with selected value.

[#1]

I have two fields column name and Item and their respective list boxes.

e.g. Column Name    Item

         A                     1

         B                     1

         C                     2

I am also loading a table from database which has fields(or columns) named A, B,C and so on. I have created a straight chart containing these fields.

Now what I want is that, when user selects 1 from Item list box, column A and B get highlighted in the straight chart(since Item 1 is related to Column Names A and B).

Till now what I've been able to achieve is that, when user selects '1' from Item list box, A and B get selected in Column Name list box automatically(using getpossiblevalue() funcion). But now I dont know how to loop through this list of possible values selected and use them in expression in the straight chart.

Any help is appreciated.

Thanks!

[swuehl]

Maybe like attached, using a background color attribute expression like:

=if(SubStringCount(concat(ColumnName,','),'A'),white(),LightGray())