Re: Type ahead combox box control

Yonatann — Thu, 22 Jan 2009 11:41:36 GMT

Not looking for a complete answer, just a direction or tip. thanks.

Type ahead combox box control

Yonatann — Wed, 21 Jan 2009 13:41:47 GMT

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Hi,

My requirements are: to have a combo box with type ahead (auto-complete) functionality where the possible values are coming from a web service.

I tried to achieve this by putting a text box and a list controls, the list control is bounded to the WS and being filtered by the text box value, so that when the user is typing a letter, the list control options are being minimized only to values starting with that letter.

This works very slowly, every typed letter is making the GUI freeze for few seconds (the WS is being called only upon the form load, so there isn't a call to the WS for each letter).

Questions:
1. Is there a reasonable way to fix this slowness? Does InfoPath use the same thread both for GUI and for the event processing (such as control filtering)?
2. Should I develop a custom control for that? Do you recommend doing that using C# or as direct active-x component (using VB6 for example)?
3. Is there any decent third party control doing that?

Thanks,

Yoni

Controls

Re: Type ahead combox box control

Type ahead combox box control