See this patch for the datascroller (for 1.1.5) http://issues.apache.org/jira/browse/TOMAHAWK-764?page=all
-----Original Message----- From: Jeff Bischoff [mailto:[EMAIL PROTECTED] Sent: Montag, 6. November 2006 18:48 To: MyFaces Discussion Subject: Re: Uidata first argument valueBinding MyFaces 1.1.3 Harry, I have made a wiki page [1] on this subject. Under the current implementation, you have to supply the glue for this yourself. (i.e. the attribute "first" can be considered read-only) Dev team - this question gets asked a lot. Maybe it is time to change the behaviour of t:dataTable/t:dataScroller to be more intuitive? [1] http://wiki.apache.org/myfaces/ManagingDataScrollerPage Regards, Jeff Bischoff Kenneth L Kurz & Associates, Inc. Harry Co wrote: > Hi all, > > I wondering about something sounding odd. > It appears that binding a variable to argument "First" in UIData (ex: > HtmlDataTable) does not cause the binding method to be called when value > changes. > *More explicitly:* > I have a dataTable like this (I've removed other not releavant arguments): > *<t:dataTable first="#{myDataListBean.myBeanListStart}">* > *MyDataBean* is a managed bean scoped "session" and holds an integer > attribute called "myBeanListStart". > When I try to change the value of "myBeanListStart" by some dataScrolling > (<t:dataScroll>), HtmlDataScroller.broadcast(...) is called and calls in > turn getUIData().setFirst(...). > But surprise, the implementation of UIData modifies its own "first" > argument > and not MyDataListBean.myBeanListStart even if a proper setMyBeanListStart > exists on MyDataListBean. > Here's the code of UIData (myFacaes 1.1.3): > > >> >> public void setFirst(int first) >> { >> if (first < 0) { >> throw new IllegalArgumentException("Illegal value for first >> row: " + first); >> } >> _first = new Integer(first); >> } >> >> public int getFirst() >> { >> if (_first != null) >> return _first.intValue(); >> ValueBinding vb = getValueBinding("first"); >> Number v = vb != null ? (Number) vb.getValue(getFacesContext()) : >> null; >> return v != null ? v.intValue() : DEFAULT_FIRST; >> } >> > Does someone knows why UIData acts like that? Is there anyway to get > myBeanListStart modified this way? > > TIA. > > Harry. >
