public virtual ObjectResult<CustOrdersOrders_Result> CustOrdersOrders(string customerID)
{
var customerIDParameter = customerID != null ?
new ObjectParameter("CustomerID", customerID) :
new ObjectParameter("CustomerID", typeof(string));
return ((IObjectContextAdapter)this).ObjectContext.ExecuteFunction<CustOrdersOrders_Result>("CustOrdersOrders", customerIDParameter);
}