Splitting multi value parameter and show as chart name in ssrs

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VBScript

C#3.5

chart

SSRS-2008

Hi,

I am developing SSRS reports with charts functionality. Charts name has to be shown depending on the site selected by user from parameter @site drop down list. I have single chart inside a list and repeated on group Parameters!site.value.

Consider if users select more than 25 sites, each site name should populate in "Chart Name" title with 25 charts.
Any thoughts would be of great help.
Thanks!
Aj

What I have tried:

I have used Join(Parameters!site.value,",") and IIF funciton but these only join them as all. Charts inside List item to repeat for every @site selection.