Atais Atais - 1 year ago 201
Ajax Question

Execute row click using listener on primefaces datatable

Problem is short. I have created a

p:datatable
but within the
p:column
i actually have a
div
element. Unfortunately the datatable should have selectable rows and the div just won't cooperate ;).
So the solution is to call it manually, on the div element there is onclick listener, but how should I call the rowSelection of the datatable? Is there some list of the functions of Primefaces' elements?

the code:

<p:dataTable var="user" value="#{rec.friends}" rowKey="#{user.id}" widgetVar="friendscrollist"
rendered="#{not empty rec.friends}" scrollable="true" rowIndexVar="findex"
scrollHeight="500" scrollWidth="220" selectionMode="single" selection="#{rec.chosenFriend}" styleClass="friendscroll">
<p:column width="198" id="friend#{findex}">
<div class="friendlist" onclick="friendscrollist.clickRow(#{findex})" />
</p:column>
<p:ajax update=":leftform" event="rowSelect" />
<p:ajax update=":leftform" event="rowUnselect" />
</p:dataTable>


Of course it is a simplified version, only things u need. So the question is what to call in the
div onclick?

Answer Source

the <p:dataTable widgetVar> has unselectAllRows() and selectRow(index) functions which are exactly what you need.

<div onclick="friendscrollist.unselectAllRows(); friendscrollist.selectRow(#{findex})">

There's unfortunately no documentation available for those functions, but in Chrome/Firebug you can see a list of all available functions in autocomplete list when you enter friendscrollist. in JS console. Below is a screen from Chrome:

enter image description here

Looking in the JS source code or common sense based on the function name should tell/hint you what those functions do.


Update: I stand corrected, a few of those functions are actually documented in PrimeFaces 3.4 User's Guide. They're in the "Client Side API" section of chapter 3.26 "DataTable", on page 146.

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