Prepares the control hierarchy for rendering in the System.Web.UI.WebControls.DataList control.
The DataList.PrepareControlHierarchy method is used primarily by control developers when deriving a custom control from the System.Web.UI.WebControls.DataList control.
The DataList.PrepareControlHierarchy prepares the control hierarchy and sets styles for contained System.Web.UI.WebControls.DataListItem controls before the child controls are rendered.