MVC Most efficient way of sharing a datatable between Contoller Action methods & Views

public ActionResult Index(int directoryID)
{
    Someclass sc = new Someclass();
    DataTable dt = sc.method("directory");

    return View(dt);
}

public ActionResult PlotPartial(DataTable dt)
{
    return PartialView(dt);
}
public ActionResult Index(int directoryID)
{