In my page have a selection for iteration of parameters 1 to 20. In the datagrid if user select iteration at 3. The datagrid show column "iteration 1", "iteration 2", "iteration 3". and hide other 4 to 20. If user select iteration 2 then show 1, 2 iteration colume, hide others. But at least have 1 iteration selected. I am bind this datagrid with datatable. The expand collapse column is unsupport. What is best way to do this in css? Any example code I can follow?