This property displays the horizontal scrollbar and allows you to scroll so you can see all the column headers if the control is too narrow to display them all at once. If you set the HorizontalScrollBarPolicy property to never, the scroll bar does not show up. The scroll bar shows up with as needed or always if delay scroll is true.
This property can also be used to speed up client side performance if there are a lot of rows and columns (set the property to true) in Microsoft Internet Explorer.