4 Answers, 1 is accepted
As I managed to understand you need to create only several shapes and use them in the RadDiagram. If so, please check out the shapes's documentation help article.It describes how to define shapes in XAML and how to work with their basic properties. You may also want to define custom shapes, so this article might be useful:
RadDiagram How To Create Custom Shape
Petar Mladenov
the Telerik team
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Attached is a sample solution showing a CustomShape with custom Geometry added to the DiagramToolBox. However, it's much more complicated if the DiagramToolBox is populated with databinding or the Shapes contain Images. So we also attached a sample where Images in the Shapes in ToolBox are successfully dropped in the Diagram.
The following forum links might be helpful too:
Customizing Shape in ToolBoxItem
Add Container to CustomToolBox in code behind
Filling the DiagramToolBox MVVM
Another Custom DiagramToolBox Scenario
Petar Mladenov
the Telerik team
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