How to increase DatePicker height in ipad?

How do I increase DatePicker height in iPad? Is this possible? And also one more doubt is, is it possible to increase the UITableView vertical scrollbar is more visible? (i.e I want to increase the vertical scrollbar width).

Every time I load the tableview data, the first time the scrollbar is not visible. When I drag the tableview only it shows开发者_JS百科 the vertical scroll bar. I want to set vertical scrollbar as default when I load my tableview data.

Can any one help me?

Thanks in advance

The size of picker views are fixed. This is necessary to create the optical illusion that makes them work.

I don't think that the scroll indicator can be activated until a scroll is attempted but I'm not certain about that.