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This example is now obsolete. Instead, refer to the How do I provide an option to collapse or expand layout groups? article for more details on the recommended solution.
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Sometimes when your detail view contains a lot of editors, it is necessary to effectively use the space on the page. For example, usually editors in which collection properties are shown take a lot of space. You can reduce the space if you provide the capability to collapse large editors.
In this example, I show how to put a large editor into the ASPxNavBar control that can expand/collapse its groups.
See Also:
Access Editor Settings