Sample JSP to launch the Picker and send back the picker values to a Textbox.

You can use Property Picker tag to render a Textbox and Find button to launch Participant Picker. The Find button has to declared in actions.xml as described in the above sections. The Property Picker by default provides a JavaScript call back function that will be invoked by the picker to send back the picked values from any picker. Property Picker also has an ability to define custom JavaScript function that can be invoked by pickers. For example:

<p:propertyPicker label="${label}" field="${textbox}" action="participantPickerSample2" type="participantpicker">
<p:populate from="${displayAttribute}" to="${displayFieldId}"/>
<p:populate from="oid" to="${id}" />
<p:pickerParam name="pickerId" value="${id}" />
<p:pickerParam name="objectType" value="wt.org.WTGroup"/>
<p:pickerParam name="componentId" value="${componentId}"/>
<p:pickerParam name="pickedDataFetcher" value="${pickedDataFetcher}" />
<p:pickerParam name="pickerCallback" value="${pickerCallBack}" />
<p:pickerParam name="containerRef" value="${containerRef}"/>
<p:pickerParam name="baseWhereClause" value="${baseWhereClause}" />
<p:pickerParam name="pickerTitle" value="${pickerTitle}"/>
<p:pickerParam name="multiSelect" value="${multiSelect}"/>
</p:propertyPicker>

Coming back to the Participant Picker, one can get the callback JavaScript function name as request parameter, when Participant Picker is launched from Property Picker.

<c:set var="pickerCallback" value="<%=request.getParameter("pickerCallback")%>"/>
<jca:participantPicker
actionClass=""
actionMethod="JavaScript:${pickerCallback}()"
participantType="<%= PrincipalBean.GROUP %>"
<jca:participantPicker>

We pass a blank string to the actionClass attribute of Participant Picker. The JavaScript call back function name that we got from the request parameter is appended to the string “JavaScript:” and passed as value to actionMethod. This string “JavaScript:” is used internally in the picker to identify, as PickerCallBack mechanism is needed. When user selects the desired participants and clicks OK, the values are sent back to the JavaScript function as JSON object (as defined in Property Picker).