On Tuesday 03 May 2016 23:09:43 Krzysztof wrote: > Hi Martin, > > This is only suggestion because I'm solving such things with timers > but I noticed that you like add new stuff ;) . I have TStringEdit used > for filters. Filter do some time consuming stuff (SQL query on big > database) so do this on each user typed char is overloaded. I have > implemented "delayed" OnChange using timer. My fake OnChange is called > after N (e.g 300 milliseconds) when user stop typing. Very handy. > Maybe you want to implement it or create new TDelayedEdit or something > like that. It is not "must need" because already solved it by timers. > There are two exceptions where OnChange is called immediately: > 1. User press ENTER > 2. User click on "clear" button > Added to wishlist. I usually make such selections with the different DB-dropdown widgets with lookup buffers or TMSESqlQuery with local indexes with direct data access which is very fast. For delayed master-detail lookups TMSESqlQuery has a MasterDelayus property.
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