In container we have charts objects such as A,B,C
if user selects the chart A then show the list box else disable though its difficult is there any other way
How do you catch the container selection? Not sure if you can.
Instead you can use buttons or text boxes, via adding actions on them like setting variable values so you can now what the user selected. And then according to the value of the variables you can show/ hide charts or other objects on Layout tab (show conditional).
No container in this scenario.