Binding to Data

Updated over 6 months ago

Data binding provides a way to bind the display of data in a RadCardView to a data source. Three properties control the data binding:

• DataSource: Specifies the source of the data to be bound

• DisplayMember: Specifies the particular data to be displayed in a RadCardView

• ValueMember: Specifies the particular data to be returned as the value of a RadCardView

Design Time Data Binding

A complete tutorial for connecting to the Northwind database from the Visual Studio designer in available in the Getting Started article.

Data Binding Programatically

The example below will demonstrate how to bind RadCardView to a collection of models. As a result the control will automatically create CardViewItem objects for all public properties of the model.

Figure 1: RadCardView Bound at Run-Time

Bind RadCardView

C#

BindingList<CardViewModel> dataSource = new BindingList<CardViewModel>()
{
    new CardViewModel("1", "Nancy Davolio","507 - 20th Ave. E.Apt. 2A", DateTime.Parse("12/8/1948", CultureInfo.InvariantCulture)),
    new CardViewModel("2", "Andrew Fuller","908 W. Capital Way", DateTime.Parse("2/19/1952", CultureInfo.InvariantCulture)),
    new CardViewModel("3", "Janet Leverling","722 Moss Bay Blvd.", DateTime.Parse("8/30/1963", CultureInfo.InvariantCulture)),
    new CardViewModel("4", "Margaret Peacock","110 Old Redmond Rd.", DateTime.Parse("9/19/1937", CultureInfo.InvariantCulture))
};
this.radCardView1.DataSource = dataSource;

VB.NET

Dim dataSource As New BindingList(Of CardViewModel)() From {
    New CardViewModel("1", "Nancy Davolio", "507 - 20th Ave. E.Apt. 2A", DateTime.Parse("12/8/1948", CultureInfo.InvariantCulture)),
    New CardViewModel("2", "Andrew Fuller", "908 W. Capital Way", DateTime.Parse("2/19/1952", CultureInfo.InvariantCulture)),
    New CardViewModel("3", "Janet Leverling", "722 Moss Bay Blvd.", DateTime.Parse("8/30/1963", CultureInfo.InvariantCulture)),
    New CardViewModel("4", "Margaret Peacock", "110 Old Redmond Rd.", DateTime.Parse("9/19/1937", CultureInfo.InvariantCulture))
}
Me.RadCardView1.DataSource = dataSource

Sample Data Object

C#

public class CardViewModel : INotifyPropertyChanged
{
    private string id;
    private string name;
    private string address;
    private DateTime dateOfBirth;
    public event PropertyChangedEventHandler PropertyChanged;
    public CardViewModel(string id, string name, string address, DateTime dateOfBirth)
    {
        this.id = id;
        this.name = name;
        this.address = address;
        this.dateOfBirth = dateOfBirth;
    }
    public string Id
    {
        get
        {
            return this.id;
        }
        set
        {
            if (this.id != value)
            {
                this.id = value;
                OnPropertyChanged("Id");
            }
        }
    }
    public string Name
    {
        get
        {
            return this.name;
        }
        set
        {
            if (this.name != value)
            {
                this.name = value;
                OnPropertyChanged("Name");
            }
        }
    }
    public string Address
    {
        get
        {
            return this.address;
        }
        set
        {
            if (this.address != value)
            {
                this.address = value;
                OnPropertyChanged("Address");
            }
        }
    }
    public DateTime DateOfBirth
    {
        get
        {
            return this.dateOfBirth;
        }
        set
        {
            if (this.dateOfBirth != value)
            {
                this.dateOfBirth = value;
                OnPropertyChanged("DateOfBirth");
            }
        }
    }
    protected virtual void OnPropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}

VB.NET

Public Class CardViewModel
    Implements INotifyPropertyChanged
    Private m_id As String
    Private m_name As String
    Private m_address As String
    Private m_dateOfBirth As DateTime
    Public Event PropertyChanged As PropertyChangedEventHandler
    Public Sub New(id As String, name As String, address As String, dateOfBirth As DateTime)
        Me.m_id = id
        Me.m_name = name
        Me.m_address = address
        Me.m_dateOfBirth = dateOfBirth
    End Sub
    Public Property Id() As String
        Get
            Return Me.m_id
        End Get
        Set(value As String)
            If Me.m_id <> value Then
                Me.m_id = value
                OnPropertyChanged("Id")
            End If
        End Set
    End Property
    Public Property Name() As String
        Get
            Return Me.m_name
        End Get
        Set(value As String)
            If Me.m_name <> value Then
                Me.m_name = value
                OnPropertyChanged("Name")
            End If
        End Set
    End Property
    Public Property Address() As String
        Get
            Return Me.m_address
        End Get
        Set(value As String)
            If Me.m_address <> value Then
                Me.m_address = value
                OnPropertyChanged("Address")
            End If
        End Set
    End Property
    Public Property DateOfBirth() As DateTime
        Get
            Return Me.m_dateOfBirth
        End Get
        Set(value As DateTime)
            If Me.m_dateOfBirth <> value Then
                Me.m_dateOfBirth = value
                OnPropertyChanged("DateOfBirth")
            End If
        End Set
    End Property
    Protected Overridable Sub OnPropertyChanged(propertyName As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub
    Public Event PropertyChanged1(sender As Object, e As PropertyChangedEventArgs) Implements INotifyPropertyChanged.PropertyChanged
End Class

See Also

• Structure
• Design Time
• Getting Started