Could any of you please share more implementation details? I tested the control by loading into it 15000 business items and the performance of the RadAutoComplete is excellent. The results of the searching operation are displayed immediately. Please note that the list of the suggestions uses virtualization for better performance. This means that only the items that can fit into the viewport of the control are created and the same items are being reused over and over again. We do not create separate UI element for every single search result.
Could you please test if the items are loading fast enough from your database? This can be done by creating the items in code and repeating the same replication steps and observing the loading time. If the performance is slow again we would need to take a look at a concrete implementation in order to further investigate the case.
Please let us know how it goes on your side.
Pavel R. Pavlov
Telerik by Progress
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