If you want to delay the filtering you can consider using one of the two approaches explained below or both:
1. The search can be prevented until the user enters the required number of characters by setting the MinFilterLength
property (for instance MinFilterLength="3"). Using your example, the user would have to enter "tes" in order for the search to be initiated.
2. The search can be delayed. You can subscribe the AutoCompleteBox to its OnClientLoad event (OnClientLoad="OnClientLoad") and in its handler set a delay in milliseconds:
and other important client-side methods are listed in the following
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