[Solved] Simple databound treeview doesnt work, why?

[Frank -]

I have a treeview in its simples form possible, can anyone explain why this little piece of code doesnt show my tree?

<UserControl x:Class="treeview.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:telerikNav="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"
    xmlns:telerikCon="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="White">
        <telerikNav:RadTreeView Background="HotPink" ItemsSource="{Binding ParentList}"/>
    </Grid>
</UserControl>

Imports System.ComponentModel
Imports System.Collections
Imports System.Collections.ObjectModel

Partial Public Class MainPage
    Inherits UserControl

    Public ParentList As New ObservableCollection(Of String)

    Public Sub New()
        InitializeComponent()
        PopulateList()
    End Sub

    Public Sub PopulateList()
        ParentList.Add("test")
        ParentList.Add("test1")
    End Sub
End Class

The background - hotpink displays but not test and test1 strings as expected.. Any ideas?

[Petar Mladenov]

Hello Frank -,

You haven't specified DataContext for the RadTreeView. I can suggest you to set the ItemsSource directly from code behind like so:

<telerikNav:RadTreeView Background="HotPink" x:name="tree">

Public Sub PopulateList()
        ParentList.Add("test")
        ParentList.Add("test1")
        this.tree.ItemsSource = ParentList;
    End Sub

Let us know if you need further assistance on this.


Best wishes,
Petar Mladenov
the Telerik team

[Frank -]

Thanx!
Stupid mistake by me.

Please have a look at my latest issue:
http://www.telerik.com/community/forums/silverlight/treeview/command-binding-radtreeview-radtreeviewitems.aspx