Dynamic Coloumn in Table Control

Hi,

I have a requirement to create coloumns in table control at runtime.

For e.g. if we see transaction SM34.

click on one box displays one set of coloumns on right side and so on.

one way is, i take all the coloums that can be displayed (may be later) and hide them according to the click on the tree.

But i am not sure whether it is the right approach.

using ALV will be my last approach.

kindly guide me to resolve this.

thanks

gaurav