With this code, I am able to return one image based off of a dropdown selection. Any ideas on how to return multiple images (I have attempted to create an ArrayList with the images and use the UI:Repeat tag to render it back to my view, but I was unsuccessful. Here is my current code now, which works but only returns one image. Any ideas on what approach to take to get more than one image?
Java Code:
(Person class has attribute: private String theImage;)
public String getTheImage(){
if(this.theSchoolChoice.equals("University of Alabama")){
theImage = "/resources/gfx/UofALogo.png";
}
if(this.theSchoolChoice.equals("Harvard University")){
}
return theImage;
}
JSF Code:
<h:selectOneMenu value="#{person.theSchoolChoice}" style="width : 179px; height : 21px;">
<f:selectItems value="#{person.theOptions}"/>
</h:selectOneMenu>
<h:outputLabel value=" "/>
<h:commandButton action="submit" value="Get templates" style="FONT-SIZE: medium; FONT-FAMILY: 'Rockwell';width : 128px; height : 25px;">
<f:ajax event="change" render="image" />
</h:commandButton>
<br></br>
<br></br>
<h:graphicImage id="image" value="#{person.theImage}"/>
As told in your first question about the subject, I have suggested to get hold of all images in a Map<String, List<String>>
where the map key is the dropdown value and the map value is the collection of images.
Since you can't seem to figure it out, here's a kickoff example how the JSF page should look like:
<h:form>
<h:selectOneMenu value="#{bean.groupName}">
<f:selectItem itemValue="Please select one" />
<f:selectItems value="#{bean.groupNames}" />
<f:ajax event="change" render="images" />
</h:selectOneMenu>
<h:panelGroup id="images">
<ui:repeat value="#{bean.images}" var="image">
<h:graphicImage value="#{image}" />
</ui:repeat>
</h:panelGroup>
</h:form>
And here's how the associated Bean
should look like:
@ManagedBean
@ViewScoped
public class Bean {
private Map<String, List<String>> allImages = new LinkedHashMap<String, List<String>>();
private List<String> groupNames;
private String groupName;
public Bean() {
allImages.put("group1", Arrays.asList("group1a.jpg", "group1b.jpg", "group1c.jpg"));
allImages.put("group2", Arrays.asList("group2a.jpg", "group2b.jpg", "group2c.jpg"));
allImages.put("group3", Arrays.asList("group3a.jpg", "group3b.jpg", "group3c.jpg"));
groupNames = new ArrayList<String>(allImages.keySet());
}
public List<String> getImages() {
return allImages.get(groupName);
}
public List<String> getGroupNames() {
return groupNames;
}
public String getGroupName() {
return groupName;
}
public void setGroupName(String groupName) {
this.groupName = groupName;
}
}