Viewing the Hierarchical Structure of Event Type Elements
The event type definition can contain hierarchical structures. These structures can be one of the following types:
composite nodes
references to objects in component schemas (complex types or elements)
These structures can be displayed in the tree view of the Event Type Editor as expanded or collapsed nodes. When a node is expanded, all of the child nodes are displayed in the tree view. When a node is collapsed, only the top-level composite node or reference node is displayed.
When you expand a composite node, you can edit any of the displayed child nodes using any of the editing possibilities described in the previous sections.
When you expand a reference to a complex type or an element in a component schema, the editor displays the child nodes as read-only nodes. These nodes belong to the component schema, so you can include them in your event type but you cannot edit them in any way. The display shows the name of each child node, followed by the data type of the child node in brackets.
When you click on any of the child nodes belonging to a reference node in the tree view, the properties of the child node are displayed in the Properties view. The properties are read-only.
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