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

El 30/03/12 19:14, Adrian Klaver escribió:

> On 03/30/2012 03:06 PM, 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.

> Qt's signals and slots mechanism comes to mind.

A simple observer pattern.

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