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POAction on JSF Drop Down Value
 

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    <p>I have a JSF page, a drop down where values are getting fetched from service. </p> <pre><code>&lt;h:selectOneMenu id="valueList" value="#" style="height:20px;"&gt; &lt;f:selectItem itemValue="Select Action" itemLabel="Select Action" /&gt; &lt;f:selectItems value="#{sampleService.sampleMethod}" var="SampleExport" itemValue="#{SampleExport}" itemLabel="#{SampleExport}"&gt; &lt;/f:selectItems&gt; &lt;/h:selectOneMenu&gt; </code></pre> <p>exportlist contains - abc, xyz</p> <p><strong>sampleService class</strong></p> <pre><code>public class SampleServiceImpl implements .... { private List&lt;String&gt; sampleList; public List&lt;String&gt; getSampleList;() { return sampleList; } public void setSampleList;(List&lt;String&gt; sampleList;) { this.sampleList=sampleList;; } /** * Method for List to be displayed in drop down */ public void sampleMethod(){ if (sampleList== null) { sampleList = new ArrayList&lt;String&gt;(); sampleList.add("abc"); sampleList.add("xyz"); } setSsampleList(sampleList); } } </code></pre> <p>and there is an action button, which is used to generate a pdf based on the selection of type of value i.e. abc or xyz. </p> <p><strong>clicktoPdf button</strong></p> <pre><code>&lt;ui:define name="actions"&gt; &lt;h:commandButton styleClass="inputbutton" value="GeneratePdf" id="export" action="#{generatePdf.pdfReport}" style="float:right;width : 73px;" /&gt; &lt;/ui:define&gt; public class GeneratePdf { public void pdfReport() { .......... ...code.... HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.createSheet(); HSSFRow row = sheet.createRow(0); HSSFCell cell = row.createCell(0); .......... .code.......... methodAbc(){ ..... } method Xyz(){ ...... } FacesContext facesContext = FacesContext.getCurrentInstance(); ExternalContext externalContext = facesContext.getExternalContext(); externalContext.setResponseContentType("application/vnd.ms-excel"); externalContext.setResponseHeader("Content-Disposition", "attachment; filename=\"Sample Report\""); workbook.write(externalContext.getResponseOutputStream()); facesContext.responseComplete(); } } </code></pre> <p>i need to generate pdf for the values selected from drop down. if "abc" is selected, it should call methodAbc(), if "xyz" is selected it should call methodXyz(). </p> <p>Also the drop down list could contain more values - abc,xyz,pqr,rst etc etc. I know its not feasible to add method for every value in the drop down. </p>
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