The specific “while you type” aspect might not be suitable for every application. Note that this is different from the built-in auto-complete feature, which works only if the user always types the first letters of the information displayed in the combo. This allows to narrow down the search until the desired information is located. A combo box is used to show the results of the current search, and is updated “on the fly”, while the focus remains in the control. Instead, the present article focuses on the user interface. The search used here is deliberately not optimized and is only fitting for very small tables (let's say below 10'000 records). Naturally, the unnamed search engine applies very advanced technology, using massive pre-indexed tables with complex relationships, and search statistics. After all, if their favourite search engine juggles with tens of thousand keywords while they type, and suggests matching phrases on the fly, why shouldn't they expect the same from your application? Today's users almost expect this to happen in all search boxes.
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