The UIData component uses the "flyweight" pattern to process its rows,
as described in the javadoc I pointed out. Because of this, I'm pretty
sure that attempting to change the child components of a UIData object
while it is iterating over its rows will have most unpleasant side-effects.
Regards,
Simon
kevin_zhai wrote:
Hi
If we can create table in back bean dynamically,
maybe it can attach me the requirement,
can anybody give me advice,thanks
Simon Kitching-3 wrote:
Hi Kevin,
kevin_zhai wrote:
I have a Table that has a column containing buttons for operations on
each
row. Each row may have different operations applicable to it, so the
buttons
for each row need to be determined dynamically based on the contents of
row.
I have seen code to dynamically create buttons, but what I would like to
know is how to do this on a per-row basis, so that row 1 would might have
1
button, row 2 would have 3 buttons and so on. I would like to avoid the
solution of creating all of the possible types of buttons and hiding the
ones that do not apply to the current row.
It is not possible to change the set of components per-row. Instead, you
*must* define all the possible types of components present in a row,
then use the rendered attribute to show/hide them based on what you want
to display on a specific row.
See the javadoc for the UIData component for details:
http://myfaces.apache.org/api/apidocs/index.html
Regards,
Simon
