Re: Force sub-component to re-grab its bindings
Re: Force sub-component to re-grab its bindings
- Subject: Re: Force sub-component to re-grab its bindings
- From: Chuck Hill <email@hidden>
- Date: Fri, 29 Feb 2008 17:10:34 -0800
On Feb 29, 2008, at 5:01 PM, Baiss Eric Magnusson wrote:
I have a sub-component <MonthDayYear>.
In Awake of that sub-component I call <pullValuesFromParent> if I can.
if ( value == null && canGetValueForBinding( "value" )) {
pullValuesFromParent();
value = (NSTimestamp)valueForBinding( "value" );
When I Submit in the Main Component, the Action method of the submit
button is called after <Awake> in the sub-component, therefore the
sub-component does not get the right bindings.
As I see below, after cloning and adding a week, the sub-component
has the old binding:
Awakening MonthDayYear 2007-02-12 03:00:00 Etc/GMT
Dumping editEvent.eventDate in StartEdit- > 2007-02-19 03:00:00 Etc/
GMT
I am trying, and failing, to understand why you need or want that code
in awake. I can't think of any time that I ever explicitly called
pullValuesFromParent(). Try taking all of that out of awake, and add
this method:
public NSTimestamp value() {
return canGetValueForBinding( "value" ) ?
NSTimestamp)valueForBinding( "value" ) : null;
}
I am not even sure about the canGetValueForBinding for check. That
seems more like it should be a design time check driven by the API.
Or at least should throw a RuntimeException if it returns false.
Chuck
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problems.
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