[Category("Tools")]
public PanningTool PanningTool {get; set;}

Property Value

Normally the DragSelectingTool takes precedence, because both tools operate on a left-button-mouse-down in the background followed by a mouse-drag. But DragSelectingTool precedes this PanningTool in the list of MouseMoveTools, so if it is applicable, it is always chosen first.

To enable this mode-less panning tool, you can remove the drag-selecting tool or you can disable that tool by disallowing selection. Remove the tool in WPF XAML by: <go:Diagram ... DragSelectingTool="{x:Null}" > . . . </go:Diagram> or remove it in code by: myDiagram.DragSelectingTool = null; You can disable user selection by setting the AllowSelect property to false.

Reference

Diagram Class
Diagram Members