autoscroll behavior when drag and dropping

[Jonam]

Hello,

i have a problem with drag and dropping in a treeview. I am using 2012 Q1. When i drag an item to the bottom or top of the treeview i expect the treeview to scroll up or down. This doesn't happens. My code is.

public MainPage()
{
    InitializeComponent();
    var itemsSource = Enumerable.Range(1, 100).Select(i => "Item " + i).ToList();
    tree.ItemsSource = itemsSource;
}

and

<UserControl x:Class="RadDrop.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:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480">
    <Grid x:Name="LayoutRoot">
        <telerik:RadTreeView x:Name="tree" IsDragDropEnabled="True">

        </telerik:RadTreeView>

    </Grid>
</UserControl>

how can i turn on this behavior.

kind regards,

Jonam

[Petar Mladenov]

Hello Jonam ,

 Unfortunately, in 2011 we introduced a bug in the RadTreeView and the autoscroll feature stopped working.
In order to workaround this, you need to implement certain behaviors described in this blog post.
Please excuse us for the inconvenience caused.

Regards,
Petar Mladenov
the Telerik team