ShapeElement::Invalidate Method ()
Visual Studio 2015
Makes sure that the shape and its immediate surroundings will be repainted at the end of the transaction.
Assembly: Microsoft.VisualStudio.Modeling.Sdk.Diagrams.12.0 (in Microsoft.VisualStudio.Modeling.Sdk.Diagrams.12.0.dll)
You might need to call this if you have changed properties of the shape. However, many operations call Invalidate() automatically.
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