If your operating system supports dynamic loading, Lua can load and call functions on demand.
如果您的操作系统支持动态加载，那么Lua可以根据需要来动态加载并调用函数。
On Demand Page loading (ODPL) is a feature that reduces the amount of memory used by large forms and that increases the speed of form loading and processing.
On Demand Page Loading (ODPL)特性可以减少大型表单使用的时间，提高装载和处理表单的速度。
One of the demos shows how to create a searchable TreeView, the other demonstrates how to implement lazy-loading (a.k.a. load-on-demand).
其中一个实例展示了如何创建一个具有搜索功能的TreeView，另一个则说明了如何实现延迟加载（lazy-loading）。
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