Case study #2: Adding a rule to assign a property type on drag-and-drop

This example presents step-by-step instructions for customizing a drag-and-drop rule. You will assign the property type after dragging a class to the property.

1. Create a profile diagram.
2. Create a class, and name it Classifier on Property.
3. For the Classifier on Property class, apply the «DragAndDropSpecification» stereotype.
4. Create a customization element.
5. In the Customization Specification window, assign the Classifier on Property element to the Allowed Drag and Drops property, .
6. In the Customization Specification window, assign the Property metaclass to the Customization Target property.
   
    
   
   
7. In the Classifier on Property Specification window, specify the following property values: 
   • For the Source Element property, specify the Classifier metaclass.
   • For the Property Action Result property, specify Type.
   • For the Representation Text property, type the name of the rule, for example, Assign Type. 
     
     
     
     
8. Reopen the project. The classifier is assigned as a property type after dragging it to the property.