Hi I face the strange problem.
I have created UITableView for iPad.
When I check the cell width i found it’s 320 but for iPad i need 768 and 1024.
The below screen shows the TableView in which the cell shows in Table
When I add scrollBar with following UIScrollView *previewScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, cell.contentView.frame.size.width, 250)];
NSLog(@"cell.contentView.frame.size.widt %f",cell.contentView.frame.size.width);
the scrollbar shows only 320 width(cell.contentView.frame.size.width) area.
what should i do for set the iPad size cell content view

You should use autoResizingFlags correctly. On creation, the cell is only 320px width, but on display it will be larger.
Try this, when creating your scrollview:
previewScrollView.autoresizingFlags = UIViewAutoresizingFlexibleWidth;This should work, but when you even need more control, you can still use the tableView delegate method:
tableView:willDisplayCell:atIndexPath: