| Re: [riena-dev] Unbind the modelBinding and rebind to an other attribute |
Florian,
I don't think your use case is any different:
But that is what already happens in the snippet I posted -- i.e. after
> Referring your example: I'd like to unbind the labelRidget, before the
> labelRidget2 is bound. So the valueUpdate from the text only
> updates the labelRidget2. The labelRidget should not be updated
> anymore (After binding the labelRidget2).
pressing rebind labelRidget1 STILL has the value "Pirchner",
labelRidget2 has the value "Florian" and labelRidget1 is not changed
if you type in the text box...
In other words, this:
textRidget.bindToModel(BeansObservables.observeValue(labelRidget2,
ILabelRidget.PROPERTY_TEXT));
will unbind labelRidget1 (or whatever was previously bound) and then
bind labelRidget2.
Isn't that exactly what you wanted? Or did I completely misunderstand you?
Kind regards,
Elias
On Tue, Feb 24, 2009 at 12:14 PM, Florian Pirchner
> _______________________________________________<florian.pirchner@xxxxxxxxx> wrote:
> Hi Elias,
>
> thanks for the snippet special created for me with text -> Florian -
> Pirchner. ;-)
>
>
> My usecase is different.
>
> If i am binding an IObservableValue, i would like to remove the old binded
> IObservableValue.
> Referring your example: I'd like to unbind the labelRidget, before the
> labelRidget2 is bound. So the valueUpdate from the text only updates the
> labelRidget2. The labelRidget should not be updated anymore (After binding
> the labelRidget2).
>
>
> I am not sure that i understand the reply right:
>>textRidget.bindToModel(...model1....)
>>// textRidget now bound to model 1
>>// later:
>>textRidget.bindToModel(...model2...) //
>>// textRidget now bound to model 2 and NOT bound to model1
>
> textRidget now bound to model 2 and NOT bound to model1
> If i push the "rebind" button, Output and Output2 are updated directly with
> the textValue. So i think model1 (as labelRidget from your snippet) is also
> bound? Or did i get something wrong?
>
>
>
> Redview requires the function in the designer mode. The user can bind each
> attribute of a bean.
>
> For example:
> In the first step the user binds the attribute "name". Redview creates the
> binding using the related ridget and calles updateFromModel(). So the
> swtControl shows the correct value of the bean.
> After this step the user recognizes that he binded the wrong attribute. So
> he will change the bounded attribute to "street". Again redview uses the
> ridget (which is already bound to name) and binds it to the attribute
> "street" of the bean. After calling updateFromModel() the control does not
> show the value of the attribute street, but again the value of the attribute
> name.
> Before binding the attribute "street", I would like to remove the binding to
> "name".
>
>
> I modified your snippet and made 2 different snippets.
> SnippedChangedBean.java
> SnippetChangedAttribute.java
>
> SnippedChangedBean simulates the binding of two beans. If you press the
> button, the beans are alternate bound to the ridget. Bean1, bean2, bean1,
> bean2,..
> On the first button Press, the Value changes from "value text of Bean 1" to
> "value text of Bean 2". Correct. Each other press only changes the beanName
> which was last bound. Not the value.
> Try pressing the button several times.
>
> SnippedChangedAttribute simulates the alternate binding of two different
> attributes of the same bean on pushing the button. "text1", "text2",
> "text1", "text2",... are bound alternate.
> On the first button Press, the Value changes from "value of Text 2" to
> "value of Text 1". Each other press only changes the property which was last
> bound. Not the value.
> Try pressing the button several times.
>
> Currently it works for redview. I am destroying the whole bindingDelegate
> and controller, and creating them completely new, if a bindingAttribute
> changes.
>
>
> Thanks, Flo
>
>
>
>
> -------- Original-Nachricht -------- Betreff: Re: [riena-dev] Unbind the
> modelBinding and rebind to an other attribute
> Datum: Mon, 23 Feb 2009 20:01:52 -0800
> Von: Elias Volanakis <elias@xxxxxxxxxxxxxxxxx>
> Antwort an: Riena Developers list <riena-dev@xxxxxxxxxxx>
> An: Riena Developers list <riena-dev@xxxxxxxxxxx>
> Referenzen: <AcmT83pLvTQ/Db9pQBmJUWIT5H5XsA==>
> <d58a25cf0902202310x3cfc7eedl1afb09fa0f1501fe@xxxxxxxxxxxxxx>
>
> Florian,
> there is no API for unbinding. However you should be able to re-bind, i.e.:
> textRidget.bindToModel(...model1....)
> // textRidget now bound to model 1
> // later:
> textRidget.bindToModel(...model2...) //
> // textRidget now bound to model 2 and NOT bound to model1
> See attached snippet.
> Elias.
> On Fri, Feb 20, 2009 at 11:10 PM, Florian Pirchner
> <florian.pirchner@xxxxxxxxx> wrote:
>> Hi riena-team,
>>
>> i have a question to a very special binding case:
>>
>> Redview can be run in different modes. One of them is a designer mode,
>> which
>> offers a very dynamically behavior on manipulating the ui. With a designer
>> editor the ui elements like controls, layouts and layoutdatas can be
>> designed. The editor offers a direct update. This means, that changes to
>> the
>> model are directly reflected to the ui. This works quite well..
>>
>> Now i am implementing the modelBindings. With the great riena binding api
>> it
>> is also easy to accieve this. But i am not sure how to process binding
>> changes in the designer editor best. If a ridget is already bound to the
>> model and the bindingAttribute changes, i have to unbind the modelBinding
>> and create a new one. I am not sure how to do this riena like. There is no
>> api like ridget.unbindFromModel(). So i have to destroy the controller
>> completely an create it again. It works well, but maybe there is a better
>> way.
>>
>> For example:
>> TextRidget is bound to the attribute "lastName" of the Adress bean. The
>> designer shows "Pirchner".
>> Now the designer decides to bind an other attribute like
>> Address.firstName.
>> After the rebinding, the designer should show "Flo".
>> So i have to unbind the TextRidget<->Adress.lastName binding and create a
>> new one: TextRidget<->Adress.firstName
>>
>> Thanks in advance for your answer
>> Flo
>>
>>
>
> --
> Elias Volanakis
> Technical Lead
> Innoopract (EclipseSource)
> 351 NW 12th Avenue
> Portland, Oregon 97209
> elias@xxxxxxxxxxxxxxxxx
> evolanakis@xxxxxxxxxxxxxx
> Tel: +1-503-552-1457
> Fax: +1-503-715-4915
> Mobile: +1-503-929-5537
> ---
> Innoopract is becoming EclipseSource - www.eclipsesource.com
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> https://dev.eclipse.org/mailman/listinfo/riena-dev
>_______________________________________________
>
--
Elias Volanakis
Technical Lead
Innoopract (EclipseSource)
351 NW 12th Avenue
Portland, Oregon 97209
elias@xxxxxxxxxxxxxxxxx
evolanakis@xxxxxxxxxxxxxx
Tel: +1-503-552-1457
Fax: +1-503-715-4915
Mobile: +1-503-929-5537
---
Innoopract is becoming EclipseSource - www.eclipsesource.com
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