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RadDiagramClear Method
Clears the diagram and resets the document.

Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.RadDiagram (in Telerik.WinControls.RadDiagram.dll) Version: 2018.3.911.40 (2018.3.911.40)
public void Clear()
The diagram is not saved prior to this reset. You need to handle in the application the eventual necessity to save (or request the user) the diagram before this.
See Also