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How to: Access a Presentation Element from a Model Element

  • Article

PresentationViewsSubject is the relationship that associates shapes and connectors to the model elements that they represent.

To navigate from a shape or a connector to the model element, use the property ModelElement. You can cast it to the type to which the shape is mapped in your DSL Definition.

ExampleShape shape = ...;
ExampleElement mel = shape.ModelElement as ExampleElement;

To navigate from a model element to a presentation element that represents it in the user interface, use the GetPresentation method. Presentation elements on diagrams are either shapes or connectors.

// using Microsoft.VisualStudio.Modeling;
// using Microsoft.VisualStudio.Modeling.Diagrams;
// using System.Linq;

ExampleShape shape = PresentationViewsSubject.GetPresentation(e1).FirstOrDefault()
                   as ExampleShape;

See Also

Other Resources

Finding Elements in the Model

Change History

Date

History

Reason

Rewrite to clarify

Content bug fix.

July 2008

Added topic.

Content bug fix.