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TBaseVirtualTree.InvalidateCache Method
Empties the internal node cache and marks it as invalid.
Pascal
procedure InvalidateCache;
Description
Marks the internal node cache as being invalid. This will cause a cache validation run next time ValidateCache is called.
The internal node cache is used to speed up display in Virtual Treeview. It contains node references with a distance of CacheThreshold nodes along with their vertical absolute position, which makes it possible to quickly find the position of a node for display, hit tests and so on.
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