DiagramToolBox ItemsSource is set runtime. Selected Index is set to 0. This displays no items. Items are displayed on the next user selection in the ToolBox.
The workaround is to surrond the setting of SelectedIndex with Dispatcher.

   Dispatcher.BeginInvoke(new Action(()=>
            this.tBox.SelectedIndex = 0), DispatcherPriority.Loaded);



Available in R3 2016 Release

Shape is dropped onto ContainerShape and the container is auto-resized.
When you press Ctrl + Z, the shape is removed, but the old size of the Container is not reverted.

Expected : the container should return to its old size.
When there is a nesting of containers and you drop a shape into in innermost container, Ctrl + Z will return the previos size of the container.

Available in R3 2016 Official Release.

If you pan the Diagram on touch device the Pan event is not fired.

Available in R3 2016 Release

Add spell checking to the shape and connections, while editing

Introducing Page size (A4, etc) concenpt and vertical and horizontal rulers

We use a RadDiagram for what is essentially graphic-art layout.  At times, subpixel positioning and extents really are correct for this use case.  We have shapes correctly positioned and displaying at subpixel accuracy; however, the selection outline always snaps to a pixel.

This is particularly relevant when zoomed in on a piece of art, e.g., aligning semi-transparent edges.  It looks odd to have the selection outline lie outside of the visible extents of the art.  Furthermore, when moving the art by mouse, the interaction is odd in that the art appears to move smoothly while the selection outline pops from pixel to pixel.  This confused our users as to what was really happening as they positioned things.

The relevant code for this is in RadDiagram.UpdateManipulationAdorner, which uses Math.Floor and Math.Ceiling to snap the line to pixel borders.  This was apparently put in to solve issues of blurriness from having a, say, 1-pixel selection outline lie at a sub-pixel position.  Perhaps a dependency property to control whether this snapping happens?

Implement "Item to Item Snapping" during item resize operation.

Reason for Declination: This feedback item is duplicate with the one below: 
http://feedback.telerik.com/Project/143/Feedback/Details/67148-implement-item-to-item-snapping-during-resize
Please follow and vote for it instead.

When using TreeLayout.Right if a shape has a single child that is shorter (in terms of height) the tops of the shapes are aligned, this means the centers of the shapes do not align and so the connection is 'crooked'. It would surely make more sense if the centres of the shapes were aligned.

Available in LIB version: 2016.2.801

The settings pane doesn't take into account the scenario when its popup is opened close to the top or bottom bounds of the screen, in the calculation of its vertical position. 


Available in R2 2016 SP

Available in LIB version: 2016.2.516

Group of 3 containers A B and C is being dragged. B is nested in A, C is separate.

Group is dragged by dragging B. 

Issue 1 => B goes into drop aware state with red border around it.

Issue 2 => when releasing the mouse B and C become children of A.


Will be available in R2 2016 Release.

Implement automatic-layout of Polytree (http://en.wikipedia.org/wiki/Polytree) graphs.
Layout with multiple roots in single graph component.

We added an SDK sample showing how you can layout such tree hierarchies in RadDiagram:
https://github.com/telerik/xaml-sdk/tree/master/Diagram/MultipleRootsInSingleTreeLayout 

Custom SettingsPane is designed to edit property from the shapes (or connections) DataContext via

extensions:SettingsPaneView.EditorPropertyName="DataContext.ShapeName" kind of binding.

If group of shapes are selected, the editing works only for the first selected shape but it should work for all select, just like when you edin non-databound diagram shapes and change their text for example. 


Available in LIB version: 2016.1.21

When you start resize operation on a grouped ContainerShape and Shape in it the Container shape size can not be shrink-ed more than the previous BottomRight position of the shape in it (despite that the shape size is changed and there is space for the collapsing).


Available in LIB version: 2016.1.21

A stackOverflow exception is thrown when the diagram is layouted with AStarRouter, Sugiyama and connection bridges.


Available in LIB version: 2015.3.1026 

When using the Implicit styles approach, setting the ShapeStyle property based on RadDiagramShapeStyle does not work. ShapeStyle is not applied.

The RadDiagramContainerShape class is quite limited as a container because it has a header, resizes to fit the content and has fixed padding around the borders for the children.

A simple base RadDiagramContainerShape that doesn't have a default style and doesn't impose any layout constraints on the children will be very useful to create custom containers to build nested shapes for UI design tools.

Thanks

Reason for Closing:
Changing the class the RadDiagramContainerShape inherits from will be a breaking change we cannot afford.
The mentioned customizations are possible via inheritance and custom styles.

Diagram has no ContainerShapes.

Layout returns different results when TreeLayoutSettings.IgnoreContainers is True / False. Same issue is produced when layout is sugiyama and sugiyamasettings' IgnoreContainers is True

When True, the result is incorrect - every shape is treated like separate graph component.

The fix is available in LIB Version 2015.1.0420.

ContainerShapes has connections connecting shapes in it.

RouteConnections is True.

After Expand Collapse - the ContainerShape has wrong size.

The bug is introduced in Q1 2015.

Available in LIB version: 2015.1.1603