Displaying Array values in Details section

Question

Hi All,
I am having trouble with Arrays in Crystal Reports.
I have made a Shared string array in my main report and am using the same in a sub report. In the sub report I need to print the values in the array one below another like a table.
Say the array MyArray has values (INDIA, USA, CHINA, JAPAN, UK)
Right now I have made a formula in which I iterate through each of them and use Join(MyArray[i], ChrW(10))
ChrW(10) as you might know is used to make a new line. So the formula output essentially looks like the way I want it, that is
INDIA
USA
CHINA
JAPAN
UK
But its still a formula and acts like a single cell. If I export it into Excel, all the values will come in single cell. Moreover, When I use it like this, I cannot do proper formatting on it either.
Is there any way to make Array behave like a table and use the same in Detail section. I do not want to hit the DB again for this purpose.
Thanks

Answer 1

Hi Antony,
The only way to display the values on the Detail section is to 'get those values from the database'.
Instead of using a shared array variable, use a comma separated string. Here's what you need to do:
1) In the Main Report, open your existing shared variable formula and add a new variable:
shared stringvar array <exisiting variable name>;
stringvar new_variable;
existing code line 1
existing code line 2
existing code line 3
new_variable = Join(array_variable_name, ",");
2) Right-click the Subreport > Select change Subreport Links > Move the above formula to the pane on the right > Uncheck the option at the bottom right that says 'Select data in Subreport based on field'.
3) Get into the Subreport and use this as the Record Selection Formula:
{database_field} IN Split({@Pm-formula_name}, ",") //Replace {@Pm-formula_name} with the parameter name that is automatically created in the Subreport.
-Abhilash