Re: [dabo-users] "Really" dynamic properties?

Paul McNett wrote:

> On 3/30/12 2:26 PM, OKB (not okblacke) wrote:

>> It seems that the various Dynamic* properties are only

>> updated when

>> update() is called. I'm not sure exactly when this is. But my

>> question is, is there any way to get "truly dynamic" (i.e.,

>> instant response) behavior from these properties? What I'd like

>> is, for instance, to have a button whose DynamicEnabled state

>> depends on values in another control. I presume I could do this

>> by hooking into various events, but I'd really like to just have

>> the DynamicEnabled be evaluated as part of the default handling,

>> so that every change to the form would trigger a recalculation of

>> Dynamic* properties. Is this possible?

> I think we should consider redesigning them to do what you suggest.

That would certainly be nice.

A possible middle ground would be a way to specify a list of events

and/or controls which a given control would "watch" for purposes of

Dynamic* evaluation. So if my button depended on the value in a certain

spinner control, I could pass "Watch=[thatSpinner]" to the button's

constructor, and it would update itself whenever the thatSpinner object

changed.

--OKB (not okblacke)

Brendan Barnwell

"Do not follow where the path may lead. Go, instead, where there is

no path, and leave a trail."

--author unknown

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