The concept of Structured Diagrams was introduced in Visio 2010 to provide core functionality for a variety of the templates in Visio, such as the Cross-Functional Flowchart, BPMN Diagram and Wireframe Diagram. This is primarily evident as Containers, Lists and Callouts and they can be customized (see Custom Containers, List and Callouts ), as shown in some of my previous articles ( see https://blog.bvisual.net/?s=container). One example of this extension can be found in all of the flowchart shapes that placed into a swimlane in a cross-functional flowchart. They have a Shape Data row, Function, that automatically inherits the text entered into the header of the swimlane. In another example, a Visio user can use Insert / Diagram Parts / Container to visually group other shapes together, and update the header text of the container. Well, I often do want my custom shapes to inherit the text of a container, so, in this article, I show how the built-in containers can be enhanced to provide this ability.
You should be aware that I often exploit the fact that Visio creates a local copy of each master shape that it uses within a document. This can be modified and set to match master by name on drop, to ensure that it is the one to use, even if the original Microsoft provided version is used. In this case, I use this trick to create hidden, enhanced versions of the containers that are available in the gallery of containers. Microsoft also do this with the Dynamic connector shape in a number of their own templates.
If you examine the Function Shape Data row of any of the flowchart shapes, then you will find the formula: