/// <summary>
/// Returns all of the available sites from a selected campground, given a reservation date range.
/// </summary>
/// <param name="campground">A particular campground object specified by the user.</param>
/// <param name="start">The start of a reservation date in yyyy-mm-dd format.</param>
/// <param name="end">the end of a reservation date in yyyy-mm-dd format.</param>
/// <returns>A dictionary of all available sites from a particular campground in a set date range, with the key being the site ID and the value being the site class object</returns>
public Dictionary <int, Site> GetSelectedSiteDictionary(Campground campground, string start, string end)
{
List <Site> list = _db.GetSelectedSites(campground.CampgroundID, start, end);
Dictionary <int, Site> SiteDictionary = new Dictionary <int, Site>();
foreach (Site item in list)
{
SiteDictionary.Add(item.SiteID, item);
}
return(SiteDictionary);
}