public SortedDictionary <System.Guid, GenesisBusiness.Order> SelectAll()
{
var dict = new SortedDictionary <System.Guid, GenesisBusiness.Order>();
var db = new Models.OrdersEntities();
db.Configuration.LazyLoadingEnabled = false;
//KF: There are several ways that the Orders can be combined with the Customer data to return the Customer names.
//The orders Entity Framework could load the data using lazy-loading. However in a display grid every orders customer would be loaded
//one at a time. For a large grid the performance hit would be quite large. If several tables data were used in the grid the performance hit
//would be even larger.
//The customer data could be selected separately and then knitted into the grid using the customer id and CustomUnboundColumnData. This method is most suitable
//for static data that can be cached in memory. For instance Customer or Order type. This method reduces the amount of data returned from the database and so
//improves performance.
//I have chosen to write a stored procedure that returns the data that the grid needs. As not every customer is needed and the data is not static it is the
//most suitable method.
var orders = db.SelectAllOrdersWithCustomers();
foreach (Models.spr_SelectAllOrdersWithCustomers_Result item in orders)
{
Order order = new Order(item);
order.Parent = this;
dict.Add(item.OrderId, order);
}
db.Dispose();
this.Dictionary = dict;
return(dict);
}