My apologies, that was a bad job of cutting/pasting in the email, that's
why the EL looked invalid. Let me try to better explain what is
happening. I am able to access a backing bean list element by using the
VALUE property of a tag in my JSP, like this ...
<tr:iterator value="#{myBean.myDynamicList}" var="myItem"
varStatus="rows">
<h:outputLabel value="#{myBean.myDynamicList[rows.index].value}" />
</tr:iterator>
myDynamicList is a list of type HtmlInputText in the backing bean. I
have initialized each element in myDynamicList with some text and the
JSP page will properly show that text when accessed with the statement
above. I have NOT explicitly defined a getter/setter for each element in
myDynamicList, only defined getter/setter that operate on the entire
list. Somehow the individual elements of myDynamicList are available to
the JSP page to display correctly! So far so good. However, the problem
occurs when I try to bind to that same myDynamicList by using the
BINDING property of a tag in my JSP, like this ...
<tr:iterator value="#{myBean.myDynamicList}" var="myItem"
varStatus="rows">
<h:inputText binding="#{myItem}" />
</tr:iterator>
The above piece of code neither gets nor sets the elements of
myDynamicList, they never show up on the JSP page and they retain the
values they were initialized with in the backing bean. I have also tried
the below code and did not have success with it either.
<tr:iterator value="#{myBean.myDynamicList}" var="myItem"
varStatus="rows">
<h:inputText binding="#{myBean.myDynamicList[rows.index]}" />
</tr:iterator>
- Usman Malik
-----Original Message-----
From: Andrew Robinson
Sent: Wednesday, June 04, 2008 2:18 PM
To: MyFaces Discussion
Subject: Re: Tying a JSF control to a dynamic list element in backing
bean
Your EL was invalid
<tr:iterator value="#{myBean.myItemList}" var="myItem"
varStatus="rows">
<h:inputText binding="#{myBean.myDynamicList[rows.index]}"/>
</tr:iterator>
On Wed, Jun 4, 2008 at 9:16 AM, Malik, Usman <[EMAIL PROTECTED]> wrote:
> Hi All,
>
> I am trying to put a bunch of user input controls on a web page
> dynamically using tr:iterator ... and then tie each control to an
> element of a dynamic list in my backing bean so I can access to the
user input from the bean.
> What I want to know is whether it is even possible to set value for a
> specific list element from the JSP page? I can't figure out what kind
> of a getter/setter method my dynamic list needs to have.
>
> Here is the JSP code snippet that I am thinking of ...
>
> <tr:iterator value="#{myBean.myItemList}" var="myItem"
varStatus="rows">
> <h:inputText binding="myBean.myDynamicList[#{rows.index}]"/>
> </tr:iterator>
>
> The above inputText binding should translate into
> "myBean.myDynamicList[0]", at least that's what I think should happen.
> However, for this to work, I would need to have a getter/setter method
> for each element of myDynamicList in the backing bean. Since
> myDynamicList is supposed to be dynamic (its size can change from one
> request to another), I don't know the number of elements in it and
> therefore I cannot hard-code the getter/setter methods. Any
suggestions or comments would be greatly appreciated.
>
> Thanks!
>
> Usman Malik
>
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