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How to bind the VIBlend Silverlight Data Grid?

Article Information

This article relates to the VIBlend DataGrid for Silverlight. It contains a complete example which illustrates how to create a custom data source and then bind the DataGrid control to it.

How To

Bind the DataGrid to business objects

Solution

To achieve this, follow these steps:

1. Specify the DataGrid's namespace.

xmlns:viblend="clr-namespace:VIBlend.Silverlight.Controls;assembly=VIBlend.Silverlight.DataGrid"

2. Create a new DataGrid instance and add its BoundFields.

<viblend:DataGrid x:Name="dataGrid" Margin="4" Grid.Row="1" AutoGenerateColumns="True">
    <viblend:DataGrid.BoundFields>
        <viblend:BoundField Text="Name" DataField="Name" Width="160" SortMode="Automatic"/>
        <viblend:BoundField Text="Date" DataField="Date" Width="140" SortMode="Automatic"/>
        <viblend:BoundField Text="Product" DataField="Product" Width="140" SortMode="Automatic"/>
        <viblend:BoundField Text="Quantity" DataField="Quantity" Width="90" SortMode="Automatic"/>
        <viblend:BoundField Text="Unit Price" DataField="UnitPrice" Width="72" SortMode="Automatic"/>
        <viblend:BoundField Text="Sales Amount" DataField="SalesAmount" Width="80" SortMode="Automatic"/>
    </viblend:DataGrid.BoundFields>
</viblend:DataGrid>

3. Create a class named EmployeeSalesRecord.

C#

public class EmployeeSalesRecord
{
    public EmployeeSaleRecord(string Name, DateTime Date, int ProductId, int Quantity)
    {
        this._name = Name;
        this._date = Date;
        this._productid = ProductId;
        this._quantity = Quantity;
    }

    #region Private Members
    private string _name;
    private DateTime _date;
    private int _productid;
    private int _quantity;
    #endregion

    #region Properties

    public string Name
    {
        get { return _name; }
        set { _name = value; }
    }

    public DateTime Date
    {
        get { return _date; }
        set { _date = value; }
    }

    public string Product
    {
        get { return productNames[_productid,0]; }
    }

    public int Quantity
    {
        get { return _quantity; }
        set { _quantity = value; }
    }

    public double UnitPrice
    {
        get
        {
            double unitPrice = double.Parse(productNames[_productid, 1]);
            return unitPrice;
        }
    }

    public double SalesAmount
    {
        get { return (double)_quantity * UnitPrice; }
    }


    #endregion
}

VB .NET

Public Class EmployeeSaleRecord
	Public Sub New(ByVal Name As String, ByVal [Date] As DateTime, ByVal ProductId As Integer, ByVal Quantity As Integer)
		Me._name = Name
		Me._date = [Date]
		Me._productid = ProductId
		Me._quantity = Quantity
	End Sub

	#Region "Private Members"
	Private _name As String
	Private _date As DateTime
	Private _productid As Integer
	Private _quantity As Integer
	#End Region

	#Region "Properties"

	Public Property Name() As String
		Get
			Return _name
		End Get
		Set(ByVal value As String)
			_name = value
		End Set
	End Property

	Public Property [Date]() As DateTime
		Get
			Return _date
		End Get
		Set(ByVal value As DateTime)
			_date = value
		End Set
	End Property

	Public ReadOnly Property Product() As String
		Get
			Return productNames(_productid,0)
		End Get
	End Property

	Public Property Quantity() As Integer
		Get
			Return _quantity
		End Get
		Set(ByVal value As Integer)
			_quantity = value
		End Set
	End Property

	Public ReadOnly Property UnitPrice() As Double
		Get
			Dim unitPrice_Renamed As Double = Double.Parse(productNames(_productid, 1))
			Return unitPrice_Renamed
		End Get
	End Property

	Public ReadOnly Property SalesAmount() As Double
		Get
			Return CDbl(_quantity) * UnitPrice
		End Get
	End Property
	#End Region
End Class

4. Create string arrays with sample data.

C#

string[] firstNames = new string[] 
{
    "Andrew",
    "Nancy",
    "Shelley",
    "Regina",
    "Yoshi",
    "Antoni",
    "Mayumi",
    "Ian",
    "Peter",
    "Lars",
    "Petra",
    "Martin",
    "Sven",
    "Elio",
    "Beate",
    "Cheryl",
    "Michael",
    "Guylène"
};

string[] lastNames = new string[] 
{
    "Fuller",
    "Davolio",
    "Burke",
    "Murphy",
    "Nagase",
    "Saavedra",
    "Ohno",
    "Devling",
    "Wilson",
    "Peterson",
    "Winkler",
    "Bein",
    "Petersen",
    "Rossi",
    "Vileid",
    "Saylor",
    "Björn",
    "Nodier"
};

static string[,] productNames = new string[,] 
{
    {"Black Tea", "1.95"},
    {"Green Tea", "1.95"},
    {"Caffè Espresso", "1.45"},
    {"Doubleshot Espresso", "1.75"},
    {"Caffè Latte", "2.25"},
    {"White Chocolate Mocha", "2.35"},
    {"Caramel Latte", "2.35"},
    {"Caffè Americano", "1.65"},
    {"Cappuccino", "2.10"},
    {"Espresso Truffle", "2.45"},
    {"Espresso con Panna", "1.81"},
    {"Peppermint Mocha Twist", "1.99"}
};

VB .NET

Private firstNames() As String = { "Andrew", "Nancy", "Shelley", "Regina", "Yoshi", "Antoni", "Mayumi", "Ian", "Peter", "Lars", "Petra", "Martin", "Sven", "Elio", "Beate", "Cheryl", "Michael", "Guylène" }

Private lastNames() As String = { "Fuller", "Davolio", "Burke", "Murphy", "Nagase", "Saavedra", "Ohno", "Devling", "Wilson", "Peterson", "Winkler", "Bein", "Petersen", "Rossi", "Vileid", "Saylor", "Björn", "Nodier" }

Private Shared productNames(,) As String = { {"Black Tea", "1.95"}, {"Green Tea", "1.95"}, {"Caffè Espresso", "1.45"}, {"Doubleshot Espresso", "1.75"}, {"Caffè Latte", "2.25"}, {"White Chocolate Mocha", "2.35"}, {"Caramel Latte", "2.35"}, {"Caffè Americano", "1.65"}, {"Cappuccino", "2.10"}, {"Espresso Truffle", "2.45"}, {"Espresso con Panna", "1.81"}, {"Peppermint Mocha Twist", "1.99"} }

5. Prepare DataGrid's data.

C#

public List<EmployeeSaleRecord> listSaleRecord = new List<EmployeeSaleRecord>();

private void PrepareGridData()
{
    const int rowsToLoad = 1000;
    listSaleRecord.Clear();

    Random rand = new Random();

    for (int i = 0; i < rowsToLoad; i++)
    {
        int productId = rand.Next(0, productNames.Length / 2 - 1);
        int quantity = rand.Next(1, 5);
        listSaleRecord.Add(new EmployeeSaleRecord(
            string.Format("{0} {1}",
            firstNames[rand.Next(0, firstNames.Length - 1)],
            lastNames[rand.Next(0, lastNames.Length - 1)]),
            DateTime.Now.AddDays(-rand.Next(10, 100)),
            productId,
            quantity)
            );
    }
}

VB .NET

Public listSaleRecord As List(Of EmployeeSaleRecord) = New List(Of EmployeeSaleRecord)()

Private Sub PrepareGridData()
	Const rowsToLoad As Integer = 1000
	listSaleRecord.Clear()

	Dim rand As New Random()

	For i As Integer = 0 To rowsToLoad - 1
		Dim productId As Integer = rand.Next(0, productNames.Length / 2 - 1)
		Dim quantity As Integer = rand.Next(1, 5)
		listSaleRecord.Add(New EmployeeSaleRecord(String.Format("{0} {1}", firstNames(rand.Next(0, firstNames.Length - 1)), lastNames(rand.Next(0, lastNames.Length - 1))), DateTime.Now.AddDays(-rand.Next(10, 100)), productId, quantity))
	Next i
End Sub

6. Bind the DataGrid.

C#

PrepareGridData();
dataGrid.ItemsSource = listSaleRecord;

VB .NET

PrepareGridData()
dataGrid.ItemsSource = listSaleRecord

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