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POSetting a JSF list box directly from javascript
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  1. POSetting a JSF list box directly from javascript
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    copied!<p>I'd like to directly set the listbox elements defined in a jsf block via setting them in a javascript code, but the document.getElementById() returns null ?</p> <p>JSF Code:</p> <pre><code>&lt;h:panelGroup id="dtEffectiveDate"&gt; &lt;h:outputText value="EffectiveDates:" style="margin-left: 250px;width:76px;"/&gt; &lt;h:selectManyListbox id="effectiveDateListbox" style="margin-left: 15px; width:76px;" size="2"&gt; &lt;c:selectItems id="effectiveDateSelectItems" value="#{manualDataEntryRegText.effectiveDates}"/&gt; &lt;/h:selectManyListbox&gt; &lt;/h:panelGroup&gt; </code></pre> <p>JavaScript code:</p> <pre><code>CalendarPopup.handleSelectForMultipleDates = function(type, args, obj, inputEl) { alert("MultiSelect"); var arrDates = CalendarPopup.effectiveDateCalendar.getSelectedDates(); var length = arrDates.length; var i=0; var tokenizedDates = ""; var txtDate = document.getElementById("pageForm:effectiveDateListbox"); alert(txtDate); // returns null for (i = 0; i!= length; i++) { var date = arrDates[i]; var displayMonth = date.getMonth() + 1; var displayYear = date.getFullYear(); var displayDate = date.getDate(); tokenizedDates = displayMonth.toString(10) + "/" + displayDate.toString(10) + "/" + displayYear.toString(10); effectiveDateListbox.options[i].value = tokenizedDates; i++; } } </code></pre> <p>EDIT: I am able to get the listbox but cannot set it: How do I set the listbox ? </p> <pre><code>var listBox = document.getElementById('pageForm:effectiveDateListbox'); for (i = 0; i!= length; i++) { var date = arrDates[i]; var displayMonth = date.getMonth() + 1; var displayYear = date.getFullYear(); var displayDate = date.getDate(); tokenizedDates = displayMonth.toString(10) + "/" + displayDate.toString(10) + "/" + displayYear.toString(10); listBox.options[i].value = tokenizedDates; i++; } </code></pre>
 

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