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How to restrict diagram objects dragging in the positive side in WPF Diagram?

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WPF Diagram (SfDiagram) objects can be restricted to drag on positive regions of the diagram page alone by using the DragLimit and EditableArea properties of the ScrollSettings class and SelectorChangedEvent in WPF Diagram (SfDiagram) control. Drag limitation will be enabled by the Block argument of SelectorChangedEvent.


SfDiagram diagram = new SfDiagram();
(diagram.Info as IGraphInfo).SelectorChangedEvent += Diagram_SelectorChangedEvent
diagram.ScrollSettings.DragLimit = ScrollLimit.Limited;
diagram.ScrollSettings.EditableArea = new Rect(0, 0, double.PositiveInfinity,double.PositiveInfinity);
private void Diagram_SelectorChangedEvent(object sender, SelectorChangedEventArgs args)
  args.BlockCursor = Cursors.No;
  args.Block = true;

View sample in GitHub.


I hope you enjoyed learning about how to restrict diagram objects dragging in the positive side in WPF Diagram.

You can refer to our WPF Diagram feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.

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