Sales Data Sample

using System;
using System.Collections.ObjectModel;
namespace Infragistics.Samples.Data.Models
{
    class SalesDataSample : ObservableCollection<Sale>
    {
        public SalesDataSample()
        {
            ObservableCollection<Sale> sales = SalesDataGenerator.GenerateSales(500);
            foreach (Sale sale in sales)
            {
                this.Add(sale);
            }
        }
    }
    public class Sale
    {
        public Sale()
        {
            this.Product = new Product();
            this.Seller = new Seller();
        }
        public Product Product { get; set; }
        public Seller Seller { get; set; }
        public DateTime Date { get; set; }
        public double Value { get; set; }
        public string Quarter { get; set; }
        public string City
        {
            get { return Seller.City; }
            set { Seller.City = value; }
        }
        public int NumberOfUnits { get; set; }
        public double AmountOfSale
        {
            get { return UnitPrice * NumberOfUnits; }
            set { Product.UnitPrice = value / NumberOfUnits; }
        }
        public double UnitPrice
        {
            get { return Product.UnitPrice; }
            set { Product.UnitPrice = value; }
        }
    }
    public class Seller
    {
        public string Name { get; set; }
        public string City { get; set; }
    }
    public class Product
    {
        public Product() { }
        public string Name { get; set; }
        public double UnitPrice { get; set; }
    }
    public class SalesDataGenerator
    {
        private static String[] _products;
        private static String[] _sellerNames;
        private static String[] _cities;
        private static readonly Random Random = new Random();
        public static ObservableCollection<Sale> GenerateSales(int numberOfSales)
        {
            _products = "Accessories;Bikes;Clothing;Components".Split(';');
            _sellerNames = "John Smith;Alfredo Fetuchini;Howard Sprouse;Russell Shorter;Nicholas Carmona;Larry Lieb;Carl Costello;Benjamin Dupree;Bryan Culver;Monica Freitag;Lydia Burson;Harold Garvin;Walter Pang;David Haley;Glenn Landeros;Harry Tyler;Stanley Brooker;Antonio Charbonneau;Brandon Mckim;Claudia Kobayashi;Benjamin Meekins;Mark Slater;Kathe Pettel;Elisa Longbottom".Split(';');
            _cities = "Sofia;London;New York;Berlin;Seattle;Mellvile;Tokyo".Split(';');
            ObservableCollection<Sale> sales = new ObservableCollection<Sale>();
            for (double i = 0; i < numberOfSales; i++)
            {
                Sale sale = new Sale
                {
                    Quarter = "Q " + i,
                    Value = GetRandomPrice(),
                    Date = GetRandomDate(),
                    Product = GerRandomProduct(),
                    NumberOfUnits = GetRandomNumUnits(),
                    Seller = GetRandomSeller()
                };
                sales.Add(sale);
            }
            return sales;
        }
        #region Get Random Objects
        private static Seller GetRandomSeller()
        {
            return new Seller
            {
                City = GetRandomCity(),
                Name = GetRandomSellerName()
            };
        }
        private static string GetRandomSellerName()
        {
            Random a = new Random(Random.Next());
            return _sellerNames[a.Next(_sellerNames.Length)];
        }
        private static string GetRandomCity()
        {
            Random a = new Random(Random.Next());
            return _cities[a.Next(_cities.Length)];
        }
        private static int GetRandomNumUnits()
        {
            Random a = new Random(Random.Next());
            return a.Next(1, 500);
        }
        private static Product GerRandomProduct()
        {
            return new Product
            {
                Name = GetRandomProductName(),
                UnitPrice = GetRandomPrice()
            };
        }
        private static double GetRandomPrice()
        {
            Random a = new Random(Random.Next());
            return a.NextDouble() * 100;
        }
        private static string GetRandomProductName()
        {
            Random a = new Random(Random.Next());
            return _products[a.Next(_products.Length)];
        }
        private static DateTime GetRandomDate()
        {
            Random a = new Random(Random.Next());
            int day = a.Next(1, 28);
            int month = a.Next(1, 12);
            int year = a.Next(DateTime.Today.Year - 5, DateTime.Today.Year + 1);
            return new DateTime(year, month, day);
        }
        #endregion
    }
}

Imports System.Collections.ObjectModel
Namespace Infragistics.Samples.Data.Models
    Public Class SalesDataSample
        Inherits ObservableCollection(Of Sale)
        Public Sub New()
            Dim sales As ObservableCollection(Of Sale) = SalesDataGenerator.GenerateSales(500)
            For Each sale As Sale In sales
                Me.Add(sale)
            Next
        End Sub
    End Class
    Public Class Sale
        Public Sub New()
            Me.Product = New Product()
            Me.Seller = New Seller()
        End Sub
        Public Property Product() As Product
            Get
                Return m_Product
            End Get
            Set(value As Product)
                m_Product = value
            End Set
        End Property
        Private m_Product As Product
        Public Property Seller() As Seller
            Get
                Return m_Seller
            End Get
            Set(value As Seller)
                m_Seller = value
            End Set
        End Property
        Private m_Seller As Seller
        Public Property [Date]() As DateTime
            Get
                Return m_Date
            End Get
            Set(value As DateTime)
                m_Date = value
            End Set
        End Property
        Private m_Date As DateTime
        Public Property Value() As Double
            Get
                Return m_Value
            End Get
            Set(value As Double)
                m_Value = value
            End Set
        End Property
        Private m_Value As Double
        Public Property Quarter() As String
            Get
                Return m_Quarter
            End Get
            Set(value As String)
                m_Quarter = value
            End Set
        End Property
        Private m_Quarter As String
        Public Property City() As String
            Get
                Return Seller.City
            End Get
            Set(value As String)
                Seller.City = value
            End Set
        End Property
        Public Property NumberOfUnits() As Integer
            Get
                Return m_NumberOfUnits
            End Get
            Set(value As Integer)
                m_NumberOfUnits = value
            End Set
        End Property
        Private m_NumberOfUnits As Integer
        Public Property AmountOfSale() As Double
            Get
                Return UnitPrice * NumberOfUnits
            End Get
            Set(value As Double)
                Product.UnitPrice = value / NumberOfUnits
            End Set
        End Property
        Public Property UnitPrice() As Double
            Get
                Return Product.UnitPrice
            End Get
            Set(value As Double)
                Product.UnitPrice = value
            End Set
        End Property
    End Class
    Public Class Seller
        Public Property Name() As String
            Get
                Return m_Name
            End Get
            Set(value As String)
                m_Name = value
            End Set
        End Property
        Private m_Name As String
        Public Property City() As String
            Get
                Return m_City
            End Get
            Set(value As String)
                m_City = value
            End Set
        End Property
        Private m_City As String
    End Class
    Public Class Product
        Public Sub New()
        End Sub
        Public Property Name() As String
            Get
                Return m_Name
            End Get
            Set(value As String)
                m_Name = value
            End Set
        End Property
        Private m_Name As String
        Public Property UnitPrice() As Double
            Get
                Return m_UnitPrice
            End Get
            Set(value As Double)
                m_UnitPrice = value
            End Set
        End Property
        Private m_UnitPrice As Double
    End Class
    Public Class SalesDataGenerator
        Private Shared _products As [String]()
        Private Shared _sellerNames As [String]()
        Private Shared _cities As [String]()
        Private Shared ReadOnly Random As New Random()
        Public Shared Function GenerateSales(numberOfSales As Integer) As ObservableCollection(Of Sale)
            _products = "Accessories;Bikes;Clothing;Components".Split(";"c)
            _sellerNames = "John Smith;Alfredo Fetuchini;Howard Sprouse;Russell Shorter;Nicholas Carmona;Larry Lieb;Carl Costello;Benjamin Dupree;Bryan Culver;Monica Freitag;Lydia Burson;Harold Garvin;Walter Pang;David Haley;Glenn Landeros;Harry Tyler;Stanley Brooker;Antonio Charbonneau;Brandon Mckim;Claudia Kobayashi;Benjamin Meekins;Mark Slater;Kathe Pettel;Elisa Longbottom".Split(";"c)
            _cities = "Sofia;London;New York;Berlin;Seattle;Mellvile;Tokyo".Split(";"c)
            Dim sales As New ObservableCollection(Of Sale)()
            For i As Double = 0 To numberOfSales - 1
                Dim sale As New Sale() With { _
                    .Quarter = "Q " & i, _
                    .Value = GetRandomPrice(), _
                    .[Date] = GetRandomDate(), _
                    .Product = GerRandomProduct(), _
                    .NumberOfUnits = GetRandomNumUnits(), _
                    .Seller = GetRandomSeller() _
                }
                sales.Add(sale)
            Next
            Return sales
        End Function
#Region "Get Random Objects"
        Private Shared Function GetRandomSeller() As Seller
            Return New Seller() With { _
                .City = GetRandomCity(), _
                .Name = GetRandomSellerName() _
            }
        End Function
        Private Shared Function GetRandomSellerName() As String
            Dim a As New Random(Random.[Next]())
            Return _sellerNames(a.[Next](_sellerNames.Length))
        End Function
        Private Shared Function GetRandomCity() As String
            Dim a As New Random(Random.[Next]())
            Return _cities(a.[Next](_cities.Length))
        End Function
        Private Shared Function GetRandomNumUnits() As Integer
            Dim a As New Random(Random.[Next]())
            Return a.[Next](1, 500)
        End Function
        Private Shared Function GerRandomProduct() As Product
            Return New Product() With { _
                .Name = GetRandomProductName(), _
                .UnitPrice = GetRandomPrice() _
            }
        End Function
        Private Shared Function GetRandomPrice() As Double
            Dim a As New Random(Random.[Next]())
            Return a.NextDouble() * 100
        End Function
        Private Shared Function GetRandomProductName() As String
            Dim a As New Random(Random.[Next]())
            Return _products(a.[Next](_products.Length))
        End Function
        Private Shared Function GetRandomDate() As DateTime
            Dim a As New Random(Random.[Next]())
            Dim day As Integer = a.[Next](1, 28)
            Dim month As Integer = a.[Next](1, 12)
            Dim year As Integer = a.[Next](DateTime.Today.Year - 5, DateTime.Today.Year + 1)
            Return New DateTime(year, month, day)
        End Function
#End Region
    End Class
End Namespace