ExpandItemByPath broken ?

[hwsoderlund]

Hi, take a look at the following. Nothing happens when I do ExpandItemByPath.

<UserControl x:Class="TreeViewExpandByPath.SilverlightControl2"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
             xmlns:nav="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"
    Width="400" Height="300">
    <Grid x:Name="LayoutRoot" Background="White">
        <nav:RadTreeView x:Name="treeView">
            <nav:RadTreeView.Items>
                <nav:RadTreeViewItem>
                    <nav:RadTreeViewItem.Header>
                        <TextBlock Text="Item 1"></TextBlock>
                    </nav:RadTreeViewItem.Header>
                </nav:RadTreeViewItem>
                <nav:RadTreeViewItem>
                    <nav:RadTreeViewItem.Header>
                        <TextBlock Text="Item 2"></TextBlock>
                    </nav:RadTreeViewItem.Header>
                    <nav:RadTreeViewItem.Items>
                        <nav:RadTreeViewItem>
                            <nav:RadTreeViewItem.Header>
                                <TextBlock Text="Item 2 - 1"></TextBlock>
                            </nav:RadTreeViewItem.Header>
                            <nav:RadTreeViewItem.Items>
                                <nav:RadTreeViewItem>
                                    <nav:RadTreeViewItem.Header>
                                        <TextBlock Text="Item 2 - 1 - 1"></TextBlock>
                                    </nav:RadTreeViewItem.Header>
                                </nav:RadTreeViewItem>
                                <nav:RadTreeViewItem>
                                    <nav:RadTreeViewItem.Header>
                                        <TextBlock Text="Item 2 - 1 - 2"></TextBlock>
                                    </nav:RadTreeViewItem.Header>
                                </nav:RadTreeViewItem>
                            </nav:RadTreeViewItem.Items>
                        </nav:RadTreeViewItem>
                        <nav:RadTreeViewItem>
                            <nav:RadTreeViewItem.Header>
                                <TextBlock Text="Item 2 - 2"></TextBlock>
                            </nav:RadTreeViewItem.Header>
                        </nav:RadTreeViewItem>
                    </nav:RadTreeViewItem.Items>
                </nav:RadTreeViewItem>
                <nav:RadTreeViewItem Header="Item 3"></nav:RadTreeViewItem>
            </nav:RadTreeView.Items>
        </nav:RadTreeView>
    </Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace TreeViewExpandByPath
{
    public partial class SilverlightControl2 : UserControl
    {
        public SilverlightControl2()
        {
            InitializeComponent();

            this.Dispatcher.BeginInvoke(() => treeView.ExpandItemByPath("Item 2|Item 2 - 1|Item 2 - 1 - 1", "|"));
        }
    }
}

The weird thing is that if I specify the Header property directly on the TreeViewItem (<nav:RadTreeViewItem Header="whatever" />) instead of breaking it out and explicitly creating a TextBlock, everything works fine. But I need more than text in my tree nodes.

[Bobi]

Hello hwsoderlund,

[hwsoderlund]

But I don't want just a text header. I have lots of other stuff in my tree items as well as text, like checkboxes, images etc. The code I posted is just a simple example to demonstrate the bug. And I'm pretty sure that this used to work just fine, but it doesn't work anymore. Surely it must be possible to parse through the content of the tree items, parse out the actual text (for instance if there's a CheckBox, just get the content of that and ToString() it) and then use that text to construct the path?

[Bobi]

Hello hwsoderlund,

We apologize for the caused inconvenience.
For now RadTreeView does not support this scenario when using RadTreeviewItem without some ItemTemplate , however we deeply appreciate your suggestion and this functionality will be added as soon as possible. Your telerik points are updated.

If you want to accomplish the desired functionality you can use  ItemTemplate / ItemTemplateSelector /ItemContainerStyle  in order to customize the appearance of the items.
Please find attached a sample project.

I hope that this will help you.

Regards,
Boryana
the Telerik team

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