Implement functionality that notifies the user when a shape is dragged out of a container.

In some cases when there are no crossings, empty spaces can be observed on the connections.

The fix will be available with Q1 2015 Release.

Users should be able to easily customize the Pan operation of the diagram.
Update: With Q1 2014 you'll be able to customize all the diagram tools

Implemented functionality that detects a connection creation being cancelled through the Esc key and notifies the user

In order to take advantage of this functionality you should inherit the ConnectionTool of RadDiagram and override the KeyDown method - if it returns true the tool action has been canceled.
More about how to customize RadDiagram tools you can find in our help topic " Tools Customization": http://www.telerik.com/help/wpf/raddiagram-tools-customization.html

Available in LIB version: 2014.3.1103

When a RadDiagramItem is deserialized, some of its properties receive local values. This is why if you have applied style setters on these properties, the value applied by the style setter is no longer used.

Extend the layout mechanism to allow control over the layouted elements in order to exclude all disconnected shapes from the layout and reorder connections by their target connectors.

Users need to create custom mouse tools and set them as ActiveTool of the RadDiagram.

Should be able to override the AbsolutePosition and the Offset of the connector. Should be able to specify absolute position manually, not only relative.

Should be able to provide template for its visual representation.

Fixed in LIB version: 2014.2.0914

Add ContainerShape ContentTemplate and ContentTemplateSelector properties in RadDiagram

When user hovers a connector and pastes a connection, the pasted connection should be attached to the hovered connector.

You can check the Diagram SDK sample in GitHub - "PasteOnMousePosition" whic demonstrates this functionality.

https://github.com/telerik/xaml-sdk/tree/master/Diagram/PasteOnMousePosition

We are marking this feature request as declined - the code in the SDK sample is the preferred way to go instead of built-in feature.

Allow the user to customize the caps (SourceCapType and TargetCapType) of the connection.

Exposed are  two new virtual methods in the RadDiagramConnection - CreateSourceCapGeometry and CreateTargetCapGeometry

Available in Q1 2015

In data binding scenarios these propeties are not updated automatically. Currently if you want to bind the StartPoint and EndPoint properties of the RadDiagramConnection you will have to update new position of the connection manually. This can be done in the PropertyChanged event of the connection. In the Handler you can cast your connection to IConnection and call the Update() method, if the e.PropertyName holds the property that you change.

Will be available in Q1 2015 Release.

Currently there is no straightforward way to notify that a point is added/removed from the ConnectionPoints collection of the RadDiagramConnection.

Connection Bridges Greatly Degrade Performance. Iven if there are no crossings, performance is very slow.
 In some scenarios empty spaces on the connections are observed even if there are no crossings.

The fix will be available with Q1 2015 Release.

Expose a property to set the DiagramBehaviors.TextWrapping attached property on a diagram level

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.

There should be annotations (comments) system built into the framework:
€¢something like Word where one can add to a word a note
€¢something like Excel with its comments bag
€¢something like Workflow Foundation where every shape has a popup bag

Inherit RadDiagramConnector and add it to a Shapes' Connectors collection. Copy / Pasting (or other serialization / deserialization action) the shape creates RadDiagramConnector, not the custom type of connector.

Diagram Shapes' property is bound to property from the ViewModel.
Case 1) Using GraphSource =>Shapes DataContext is automatically apllied. GraphSource is set to null or changed.
Or
Case 2) Not using Graphsource. Shape's DataContext is set manually (in code behind). Diagram.Clear() is invoked.

Result: Binding Expression erors in Output indicate missing properties - these are bound properties of the shapes.

ManipulationAdorner (including Rotation thumb, resizing thumbs) should not be zoomed along with the shape.