Hansjörg Meuschel wrote:
Simon Kitching wrote:
Hansjörg Meuschel wrote:
Hi,
the problem is the surrounding t:datatable: Children of this
component all get the same id as the component does not create new
objects for each iteration.
That's just not true.
Both the h:dataTable and t:dataTable components use the "flyweight"
pattern to avoid creating a component-per-row. However they ensure
that the id effectively varies per row for the component, making this
transparent for most purposes.
oh ok... i don't know exactly all implementation details, however what i
know is that the t:datatable has some serious problems:
Example:
<h:form>
<t:datatable>
<t:column>
<h:inputText>
</ ...>
THIS WILL NOT WORK! (all input field get the same id)
<h:form>
<h:datatable>
<h:column>
<h:inputText>
</ ...>
THIS WILL WORK! (all input field get different ids)
This is the reason why the t:datatable can't be used with submittable
componenents! Or am I doing something very wrong here ??
You're doing something very wrong, though I don't know what. Input
fields in tables work fine for me, in MyFaces 1.1.1 and SVN head (I
haven't tried older versions).
Note that the *id* of the component stays the same, but the *clientId*
changes. Given
<h:form id="form1">
<h:dataTable id="table1">
<h:column>
<h:inputText id="input1">
During rendering, the *same* input-text component is called once per
row. If it calls getId(), it sees "input1". However if it calls
"getClientId", it sees:
form1:table1:0:input1
form1:table1:1:input1
form1:table1:2:input1
which are all unique ids.
Same process occurs during decoding of submitted values, so each
submitted value gets processed correctly.
I also had a collapsible panel within a table and had that working a few
months ago. I've deleted that code since, though, as I've taken a
different approach to presenting that data.
Note that there have been some problems reported recently regarding
tomahawk on sun's JSF RI implementation which *might* be related. I've
only tried this on the MyFaces JSF implementation.
Regards,
Simon
