Jaider Escribio.
hola ken,
agradezco mucho tu respuesta, inclui el metodo que me dijiste, cuando corro el
proyecto efectivamente se pintan la cuatro cajas de texto, yo digito valores
sobre esas cajas y los quiero recuperar en el metodo de un boton que agregue
pero nada los objetos de la lista en su propiedad valor viene aun vacios,
que estare haciendo mal.
gracias
Hi,
You are asking how to get the value of the 4 fields you are creating?
You can use a ValueExpression to map the data back to your List, or
anywhere else you would like. For example:
...
caja=new TextField();
caja.setId(dto.getId());
--> caja.setValueExpression("text", createVE("#{sessionBean.lista["
+ (idx++) + "].valor}"));
this.getGridPanel1().getChildren().add(caja);
...
private ValueExpression createVE(String exp) {
FacesContext facesCtx = FacesContext.getCurrentInstance();
return facesCtx.getApplication().getExpressionFactory().
createValueExpression(facesCtx.getELContext(), exp,
Object.class);
}
This will ensure the original object
(sessionBean.getLista().get(idx).setValor("<new value>")) is called.
However, you may want to use "binding" instead of "prerender".
"prerender" is not standard and may get invoked more than 1 time adding
too many fields to your page if it is refreshed.
I hope this helps you.
Good luck!
Ken Paulsen
https://jsftemplating.dev.java.net
jaider rodriguez wrote:
> hola ken.
>
> ya encontre la forma de pintar los controles ahora la duda que me asalta es
> como obtengo el valor que se digite en las cajas de texto o combos que se
> llegasen a pintar, te coloco el fragmento de codigo que pinta los controles,
> aclaro es solo un ejemplo , el ejemplo pinta cuatro cajas de texto y la
> funcion que te envio la llamo desde el prerender de la pagina
>
> public void crearTabla(){
> SessionBean1 f=this.getSessionBean1();
> TextField caja;
> ImageComponent imagen;
> for(DatosDto dto:f.getLista()){
> if(dto.getTipo().equals("TEXT")){
> caja=new TextField();
> caja.setId(dto.getId());
> caja.setText(dto.getValor());
> this.getGridPanel1().getChildren().add(caja);
> }else if(dto.getTipo().equals("IMAGE")){
> imagen=new ImageComponent();
> imagen.setId(dto.getId());
> imagen.setUrl(dto.getValor());
> this.getGridPanel1().getChildren().add(imagen);
> }
> }
> }
>
>
> la lista esta definida asi
>
>
> lista.clear();
> lista.add(new DatosDto("","compo1","TEXT"));
> lista.add(new DatosDto("","compo2","TEXT"));
> lista.add(new DatosDto("","compo3","TEXT"));
> lista.add(new DatosDto("","compo4","TEXT"));
>
>
> como obtengo el valor de lo que se digite sobre las cajas de texto
>
> gracias
> El Friday 25 April 2008 10:46:27 Ken Paulsen escribió:
>
>> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
>> <html>
>> <head>
>> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
>> <title></title>
>> </head>
>> <body bgcolor="#ffffff" text="#000000">
>> <br>
>> <a class="moz-txt-link-freetext"
>> href="http://www.freetranslation.com/">http://www.freetranslation.com/</a><
>> br> <br>
>> One way would be to use the "binding" attribute for a parent container
>> (like a PanelGroup) which uses the objects in the list to create child
>> components. There are other ways... if you have Java code showing
>> what you are trying to do, this would help us help you.<br>
>> <br>
>> Good luck!<br>
>> <br>
>> Ken<br>
>> <a class="moz-txt-link-freetext"
>> href="https://jsftemplating.dev.java.net">https://jsftemplating.dev.java.ne
>> t</a><br> <br>
>> Vanessa Black wrote:
>> <blockquote cite="mid:4811EFF3.5050404_at_Sun.COM" type="cite">
>> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
>> <br>
>> I believe this could serve as a translation into English<br>
>> <br>
>> -------------------------------<br>
>> <br>
>> Today I return to you all with the following problem<br>
>> <br>
>> I have a list which is filled with objects that have 3 properties. One
>> is called value, the second id, the third is type component(depending
>> on if you render a text box, or "combo"(?) or button). I'd like to
>> know how to run through the list and render the controls depending on
>> the corresponding type.<br>
>> <br>
>> Help please<br>
>> -------------------------------<br>
>> <br>
>> <a moz-do-not-send="true" class="moz-txt-link-abbreviated"
>>
>> href="mailto:jaider.rodriguez_at_creandosoft.com">jaider.rodriguez_at_creandosoft
>> .com</a> wrote:
>> <blockquote
>> cite="mid:20080424215129.2o9w4lfgwgcogwcc_at_webmail.creandosoft.com"
>> type="cite">Buen dia <br>
>> <br>
>> <br>
>> hoy recurro a ustedes por el siguiente problema. <br>
>> <br>
>> tengo una lista la cual esta lleno de objetos que tiene tres
>> propiedades una <br>
>> es llamado valor otro llamado id y el otro tipo de componente (si se
>> dibuja <br>
>> en una caja de texto o un combo o un boton etc), quisiera saber como
>> puedo <br>
>> hacer para recorrer esta lista y pintarla los controles segun el tipo
>> que les <br>
>> corresponde. <br>
>> <br>
>> ayuda por fa <br>
>> <br>
>> --------------------------------------------------------------------- <br>
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>> va.net</a> <br>
>> <br>
>> </blockquote>
>> <br>
>> <div class="moz-signature">-- <br>
>> <small style="font-family: palatino linotype;"><span
>> style="color: rgb(153, 153, 153);">Vanessa L. Black </span><br>
>> <span style="color: rgb(153, 153, 153);">Storage Platform Software
>> Group</span><br>
>> <span style="color: rgb(153, 153, 153);">Sun Microsystems Inc.</span><br>
>> <span style="color: rgb(153, 153, 153);">Broomfield , Colorado</span>
>> <br>
>> <span style="color: rgb(153, 153, 153);">x72984,
>> 303-272-2984</span></small> </div>
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