RichFaces, extendedDataTable: avoid selectionChange event on double click

Question

I have an extendedDataTable with a selectionchange event and selectionMode="single". Furthermore I work with the attribute "onrowdblclick" wich invokes a JavaScript function.

<rich:extendedDataTable id="myTable" ... selectionMode="single" var="item" selection="#{myController.selection}" onrowdblclick="showPageByDoubleClick('#{item.id}');"> 

<a4j:ajax event="selectionchange" listener="..."/>

My question is, how can I prevent the extendedDataTable from invoking the selectionchange event if the user has double clicked a row?

On double click I forward to a new page and the selectionchange event takes too much time, thus the page forwarding is delayed. We have very strict performance requirements.

I'am using RichFaces 4.5.9

Best regards

Add return false; in onrowdblclickafter existing action call — Vasil Lukach
Hi Vasil, first the selectionchange event will be called, afterwards the onrowdblclick event. thats my code: <rich:extendedDataTable id="myTable" ... selectionMode="single" var="item" selection="#{myController.selection}" onrowdblclick="showPageByDoubleClick('#{item.id}');"> <a4j:ajax event="selectionchange" listener=... — dako-ak

dako-ak dako-ak · Accepted Answer · 2015-12-29T13:08:18

Ok, everything I had to do is to work with a queue and to group both requests in one queue. The queue treats both requests as the same request and thus the ignoreDupResponses attribute is working.

Example:

<h:form id="myform">
  <a4j:queue name="overviewSelectionQueue" ignoreDupResponses="true" requestDelay="200"/>

<a4j:jsFunction name="editWithDoubleClick" action="#{myController.editWithDoubleClick}">

    <a4j:param name="selectedId" assignTo="#{myController.selectedId}" />
    <a4j:attachQueue name="overviewSelectionQueue" requestGroupingId="overviewSelection"/>
</a4j:jsFunction>

<rich:extendedDataTable id="myTable" value="#{myController.myList}" var="item" selectionMode="single"

                        selection="#{myController.selection}" onrowdblclick="editWithDoubleClick('#{item.id}');">

      <a4j:ajax event="selectionchange" listener="#{myController.overviewTableSelectionChanged}"
           execute="@this" limitRender="true">
           <a4j:attachQueue name="overviewSelectionQueue" requestGroupingId="overviewSelection"/>
      </a4j:ajax>
...

RichFaces, extendedDataTable: avoid selectionChange event on double click

1 Answers