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Can I detect expand/collapse button clicks when using the WebApp approach to display diagrams on a web page?

April 26, 2017approach button clicks COLLAPSE detect diagrams display expand web page webapp

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Can I detect expand/collapse button clicks when using the WebApp approach to display diagrams on a web page?

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The HtmlBuilder class used to generate the client-side image map has an ExpandBtnHyperlink property – use it to handle the click on the server (by setting the Expanded property of the clicked node) and return a new diagram image to the browser.