Completed
Last Updated: 14 Feb 2023 08:41 by ADMIN
Release R1 2023
The example modifies the DropPosition of the dragged item to Inside on drag over. This could lead to an exception in the default drag-drop logic if the dragged item and the drop target are of the same type. This exception causes the dragged item to disappear when it is dropped.
Completed
Last Updated: 31 May 2022 14:26 by ADMIN
Release LIB 2022.2.606 (6 Jun 2022)
Setting custom ItemContainerStyleSelector is sometimes not applied to every item of the RadTreeView control, when the TreeVirtualizationMode is set to Hierarchical.
Completed
Last Updated: 28 Feb 2022 15:03 by ADMIN
Release LIB 2022.1.307 (7 March 2022)

TreeView is in dropdowncontent of a DropDownButton. BringPathIntoView is called on loaded of the button (or the tree). It tries to bring several nested levels deep for example item 90.3.2.1 (4 levels deep).
On opening the button , the scrollviewer is not scrolled to the desired item.

Posssible workarounds:

 - invoke the BringPathIntoView method in a Dispatcher.BeginInvoke call

 - disable the treeview animations before the call and enable them after the call ( telerik:AnimationManager.IsAnimationEnabled = False)

Completed
Last Updated: 31 May 2021 08:03 by ADMIN
Release LIB 2020.2.504 (05/04/2020)
Selection is not updated when using the arrow keys if the current selected item is outside the viewport.
Completed
Last Updated: 07 Apr 2021 05:41 by ADMIN
Release LIB 2021.1.412 (12/04/2021)

Select an item with mouse, scroll thousands of items down and then shift select item to perform range selection. This will block the UI thread for seconds. 

Completed
Last Updated: 08 Feb 2021 11:40 by ADMIN
Release LIB 2021.1.208 (2/8/2021)
Completed
Last Updated: 24 Aug 2020 10:56 by ADMIN
Release LIB 2020.2.824
The children of an expanded RadTreeViewItem dropped inside another item are not indented correctly. 
Completed
Last Updated: 26 May 2020 08:34 by ADMIN
Release LIB 2020.2.525 (5/26/2020)

Select nested item in virtualized treeview with single selection mode.

Collapse its parent. Select item in the level of the parent. Expand the parent and notice two items are visually selected.

Expexted : only the last selected item with mouse should be visually selected.

Workaround:

private void TreeView_ItemPrepared(object sender, RadTreeViewItemPreparedEventArgs e)
{
    if ((e.PreparedItem.IsSelected == true && this.TreeView.SelectedItem != null && this.TreeView.SelectedItem != e.PreparedItem.Item))
        e.PreparedItem.IsSelected = false;
}
Completed
Last Updated: 20 Feb 2020 13:40 by ADMIN
Release R1 2020 SP
Virtualized TreeView is bound to collection of models and IsSelected of RadTreeViewItem is 2way bound to IsSelected of model.
Select the 10th item with mouse. 
Reset the items of the tree to a subset (1-15) containing the selected item.
Select the 5th item with mouse and shift key down.
Expected: Range 5-10 of items is selected.
Actual: Range 10-15 of items is selected.

Completed
Last Updated: 18 Feb 2020 08:28 by ADMIN
Release R1 2020 SP
When switching to a different window, the selected item in the RadTreeView stays in a selected in-focus state. The expected behavior is not to be focused any more (turn gray).
Completed
Last Updated: 10 Feb 2020 09:36 by ADMIN
Release LIB 2020.1.210 (2/10/2020)
Selecting an item via tap does not work when ScrollViewer.PanningMode has a value other than None.
Completed
Last Updated: 22 Aug 2018 17:28 by Werner
Setting the HeaderStringFormat of RadTreeViewItem does not format the Header.

As a workaround, HeaderTemplate of RadTreeViewItem could be set which has TextBlock with StringFormat property set on its Text Binding.



 <DataTemplate x:Key="template">
                <TextBlock Text="{Binding ., StringFormat='Received ({0:N0})'}" />
</DataTemplate>


Available in LIB version: 2016.3.1121
Completed
Last Updated: 29 Dec 2016 15:58 by ADMIN
SelectedItems collection does not work correctly when the RadTreeView is virtualized and ContainerBindings (SL) / Style Bindings (WPF) are used for binding the IsSelected property.


The issue is not reproducible with R3 2016 version of RadTreeView with both Multiple and Extended Selection mode.
Please open a new support thread with detals from your scenario if you encounter similar issue.
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
If item is expanded from the UI and viewport is scrolled to the top calling BringIndexIntoView causes the viewport to lock while scrolling.

Available in LIB version: 2016.2.516 
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
TreeView is in TabItem of TabControl with IsContentPreserved = False. On ContextMenu open and when working with Contextmenu, the underlying RadTreeViewItem is in MouseOverState. Changing tabs then back to the tab with the TreeView. When working with contextmenu, the underlying treeviewitem is not is mouseoverstate. Could be reproduced in CustomContextMenu QSF sample. Not reproducible in AddRemoveDisable sample.
The workaround is to set IsContentPreserved to true on the RadTabControl.
Completed
Last Updated: 11 Aug 2016 14:04 by Mark
If RadTreeView.IsEnabled  false (or the tree is inside busy BusyIndicator), then ExpandItemByPath(or GetItemByPath) does not work.

Available in LIB version: 2016.2.525
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
In databinding scenarios, the Header is somehow not stretched when setting the HeaderContentAlignment to true
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
If the TreeView SelectionMode is Extended, dragging a single selected item while holding the Ctrl key will deselect the item

Available in Q1 2015
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
Reordering checked items using the drag/drop implementation in a TreeView with IsTriStateMode=False, sets the parent item in an indetereminate state
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
The CheckBox`s CheckMark is mirrored when the RightToleft FlowDirecttion is set in the RadTreeView
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