Visible chart according to dropdown selection in reports

i am creating a report which consist 3 charts(XY Chart, Bar chart).

i have a dropdown in my window. i want to visible the chart as per dropdown selection.
means when i select X bar chart in dropdown it must only shows that chart.

I would do this with a table with a row version; bind the row version to an input parameter:

A table with unstructured rows can have whatever cell contents you want.