For me I binding to a flag like lineVOUpdate in data model, but not
lineVO itself. I give freedom for views to update or not. I found
although most of time, when a value updated I should update those
component in that view, but in my cases I need have control when to update.
This is inside my data model:
[Bindable]
public var lineVOUpdate:Boolean;
public var lineVO:LineVO = new LineVO();
In the case when I need update, I just call:
if(update){
lineVOUpdate = false;
lineVOUpdate = true;
}
In views, only get values from lineVO when lineVOUpdate is true;
public function set lineVOUpdate(b:Boolean):void
{
if(b){
doSomething();
}
}
George
[EMAIL PROTECTED] wrote:
> Ah - good it is Cairngorm.
>
> Initially bind the VO to the component. Well, actually I do bind it's
> properties directly to the individual elements of the component initially.
>
> Then what I do is create another Event call something like UpdateVOEvent
> and dispatch at the Command level. This then triggers a standard Command
> called something like UpdateVoCommand that you can call from all over the
> place to trigger the update. Currently I'm actually using it to reset big
> forms to their original values. But in answer to your question - the way
> I do it is to have a two step process - change the property and then
> update the VO.
>
> I think I may have misunderstood the question - how exactly are you
> binding a VO to a component without the component knowing which properties
> in the VO relate to which elements of the component?
>
> t
>
>
>> One more question...
>>
>> How would you bind this update() to the vo in wich we change the
>> propertie.
>>
>> I have VO in the modelLocator, and I change it with command. Then this
>> must be updated on the component vo.
>>
>> How would you bind this?
>>
>> Thanks,
>> Toni
>>
>>
>> --- In [email protected], [EMAIL PROTECTED] wrote:
>>
>>> Hi,
>>>
>>> I don't know if this helps, but what I've done in the past is to
>>>
>> bind the
>>
>>> VO and then if I need to update it I had the same problem you were
>>>
>> talking
>>
>>> about. I would change the value, but the VO wouldn't change as the
>>> binging goes from the VO to the component, not the other way around. My
>>> little work around was to have a function similar to this (assuming
>>>
>> the VO
>>
>>> is called 'voToChange' of type 'VO')
>>>
>>> private function update():void
>>> {
>>> var holderVO:VO = voToChange;
>>> voToChange = new VO();
>>> voToChange = holderVO;
>>> }
>>>
>>> This then changes the VO so the change will go back to the component.
>>> Alternatively if you want to set something on the VO you could
>>>
>> change the
>>
>>> function to somethign like
>>>
>>> private function setSomthing(something:Object):void
>>> {
>>> voToChange.propertyToChange = something;
>>> //Call the update function
>>> update();
>>> }
>>>
>>> I hope I haven't completely misunderstood what you are having
>>>
>> problems with.
>>
>>> Luck,
>>>
>>> Tim
>>>
>>>
>>>> I understand that. I know how to bind some class. Problem is, that if
>>>> I Bind whole VO to one of my components, if I change something in the
>>>> VO (only one var) than nothing will change. I don't want to bind all
>>>> the properties separately.
>>>>
>>>> I can make one example for drawing line:
>>>>
>>>>
>>>> [Bindable]
>>>> public class LineVO
>>>> {
>>>> public var startX:Number;
>>>> public var startY:Number;
>>>> public var endX:Number;
>>>> public var endY:Number;
>>>> }
>>>>
>>>> Than I have one component to draw the line with LineVO.
>>>>
>>>> var linevo:LineVO=new LineVO();
>>>> linevo.startX=0;
>>>> linevo.startY=0;
>>>> linevo.endX=20;
>>>> linevo.endY=30;
>>>>
>>>> var newLine:Line=new Line();
>>>> newLine.vo=linevo;
>>>> addChild(newLine);
>>>>
>>>> I only want to bind the whole linevo, not the properties.
>>>>
>>>> Now if i change some properties like startX or startY, in the line
>>>> should be triggered one function that I bind to.
>>>>
>>>> It is working for me if I bind the every propertie by itself, like
>>>>
>> this:
>>
>>>> BindingUtils.bindProperty(newLine,"onChange",linevo,"startX");
>>>>
>>>> That is not O.K., because than I have to bind everything manually.
>>>>
>>>> I hope that now somebody can help me.
>>>>
>>>> Thanks,
>>>> Toni
>>>>
>>>>
>>>>
>>>> --- In [email protected], "madflexcoder" <brian.joseph31@>
>>>> wrote:
>>>>
>>>>> Put your [Bindable] tag on top of your class and it will make the
>>>>> entire class bindable.
>>>>>
>>>>> [Bindable]
>>>>> public class MyVo
>>>>> {
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> brian..
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --- In [email protected], "toniabc" <toniabc@> wrote:
>>>>>
>>>>>> Hi!
>>>>>>
>>>>>> I have one problem.
>>>>>>
>>>>>> I have Value Object that I want to Bind to my custom made
>>>>>>
>> component. I
>>
>>>>>> have no problems to bind every single value from VO to
>>>>>>
>> component. And
>>
>>>>>> if I change something in the VO, that will be changed.
>>>>>>
>>>>>> But I want to Bind the whole VO (at once, not every value by
>>>>>>
>> itself).
>>
>>>>>> So that I can override the whole VO and changes will be
>>>>>>
>> automatically
>>
>>>>>> trigger the update function in my component. And if I remove
>>>>>>
>> the VO,
>>
>>>>>> than I want to remove my component from view.
>>>>>>
>>>>>> Thank you,
>>>>>> Toni P.
>>>>>>
>>>>>>
