Multiple Value Selection in Listbox

Hi All,

I am using a list box to select multiple entries to change the values accordingly in the cross tab.

I am passing the values in the list box using the On Startup method, but the multiple selections doesn't work at run time. I have also enabled the Multiple selection option in the list box properties.

I have gone through the following articles:

Create a list box with multiple selection capabilities: Design Studio 1.2 - YouTube

Design Studio 1.5: View on Data Binding (for List)

Could anyone please suggest where this scenario is failing?

Thank you.