PresentationElement.ModelElement Property

Gets or sets the model element that is associated with the presentation element.

Namespace:  Microsoft.VisualStudio.Modeling.Diagrams
Assembly:  Microsoft.VisualStudio.Modeling.Sdk.Diagrams.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.Diagrams.10.0.dll)

Syntax

'宣告
Public Property ModelElement As ModelElement
    Get
    Set

public ModelElement ModelElement { get; set; }

public:
property ModelElement^ ModelElement {
    ModelElement^ get ();
    void set (ModelElement^ value);
}

member ModelElement : ModelElement with get, set

function get ModelElement () : ModelElement
function set ModelElement (value : ModelElement)

Property Value

Type: Microsoft.VisualStudio.Modeling.ModelElement
The model element that is associated with the presentation element.

Remarks

This property navigates or creates a PresentationViewsSubject() relationship to a domain model element.

Each presentation element is usually associated with a domain model element, using the PresentationViewsSubject() relationship. The correspondence between domain classes and classes derived from PresentationElement is defined by the Domain Element Map which you set in the DSL Definition file.

Examples

If in your DSL Definition, you defined a domain class ExampleElement that is mapped to a shape class ExampleShape, then you can write the following code:

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

To navigate from the element to the shape, use the PresentationViewsSubject relationship directly. Unless you have made major customizations to your DSL, there is never more than one presentation element for each domain model element:

ExampleElement element = ...;
ExampleShape  shape =  PresentationViewsSubject.GetPresentation(i).FirstOrDefault() as
ExampleShape;
if (shape != null) {...}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

PresentationElement Class

Microsoft.VisualStudio.Modeling.Diagrams Namespace

Subject

Other Resources

How to Define a Domain-Specific Language