I've faced two issues on RadGrid while using horizontal scroll bar. Those are,
(i) I've used radgrid and set width 950px my concern is when the grid has no records it doesn't appear scroll bar but the sum of columns widths are greater than grid's width if the grid has records horizontal scroll appears.
(ii) And my another issue is I had details table in that same grid here the number of columns exceeds than grid's column but when the grid and details table has records I can't see rest of the columns I meant about the horizontal scroll bar doesn't appear up to details table column. The horizontal scroll bar shows only up to the main grid's column.
Note: I've set details table width 95%, 96% though its not working