Data Binding

Bound mode

RadPipsPager provides built-in option to bind the control to any collection by using the BindingSource property. When in bound mode the RadPipsPager automatically changes the Position of the BindingSource. The number of the pips is also calculated automatically based on the used data.

The following example demonstrates a basic scenario where RadPipsPager is used with RadSlideView. Here, RadPipsPager is bound to a BindingList of a custom object:

Bind RadPipsPager

• C#
• VB.NET

BindingSource bindingSource = new BindingSource();
BindingList<Person> list = new BindingList<Person>()
{
new Person("1", "Nancy Davolio"),
new Person("2", "Andrew Fuller"),
new Person("3", "Janet Leverling"),
new Person("4", "Margaret Peacock")
};
bindingSource.DataSource = list;
this.radPipsPager1.BindingSource = bindingSource;

//bind slide view to show data
LightVisualElement template = new LightVisualElement();
this.radSlideView1.Mappings.Add(new Mapping(template, LightVisualElement.TextProperty, nameof(Person.Name)));
this.radSlideView1.TemplateElement = template;
this.radSlideView1.BindingSource = bindingSource;

Dim bindingSource As BindingSource = New BindingSource()
Dim list As BindingList(Of Person) = New BindingList(Of Person)() From {
    New Person("1", "Nancy Davolio"),
    New Person("2", "Andrew Fuller"),
    New Person("3", "Janet Leverling"),
    New Person("4", "Margaret Peacock")
}
bindingSource.DataSource = list
Me.radPipsPager1.BindingSource = bindingSource

'bind slide view to show data
Dim template As LightVisualElement = New LightVisualElement()
Me.radSlideView1.Mappings.Add(New Mapping(template, LightVisualElement.TextProperty, NameOf(Person.Name)))
Me.radSlideView1.TemplateElement = template
Me.radSlideView1.BindingSource = bindingSource

Sample Data Object

• C#
• VB.NET

public class Person : INotifyPropertyChanged
{
    private string id;
    private string name;
    public event PropertyChangedEventHandler PropertyChanged;
    public Person(string id, string name)
    {
        this.id = id;
        this.name = name;
    }
    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");
            }
        }
    }
    protected virtual void OnPropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}

    Public Class Person
        Inherits INotifyPropertyChanged

        Private id As String
        Private name As String
        Public Event PropertyChanged As PropertyChangedEventHandler

        Public Sub New(ByVal id As String, ByVal name As String)
            Me.id = id
            Me.name = name
        End Sub

        Public Property Id As String
            Get
                Return Me.id
            End Get
            Set(ByVal value As String)

                If Me.id <> value Then
                    Me.id = value
                    OnPropertyChanged("Id")
                End If
            End Set
        End Property

        Public Property Name As String
            Get
                Return Me.name
            End Get
            Set(ByVal value As String)

                If Me.name <> value Then
                    Me.name = value
                    OnPropertyChanged("Name")
                End If
            End Set
        End Property

        Protected Overridable Sub OnPropertyChanged(ByVal propertyName As String)
            RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
        End Sub
    End Class
End Class

Unbound mode

In unbound mode, the NumberOfPages property determines the amount of pips items that are shown.

• C#
• VB.NET

this.radPipsPager1.NumberOfPages = 2;

Me.radPipsPager1.NumberOfPages = 2

Then, you can handle the SelectedIndexChanged event to get notified when the user changes the selected PipsPagerItem. The SelectedPipChangedEventArgs gives access to the new and old pip.

• C#
• VB.NET

private void RadPipsPager1_SelectedIndexChanged(object sender, Telerik.WinControls.UI.PipsPager.SelectedPipChangedEvent
{

    this.source.Position = e.NewIndex;
}     

Private Sub RadPipsPager1_SelectedIndexChanged(ByVal sender As Object, ByVal _ As Telerik.WinControls.UI.PipsPager.SelectedPipChangedEvent)
    Me.source.Position = e.NewIndex
End Sub