I just recently upgraded to 1.3.3 from 1.3.2 as there was a bug that was
fixed in 1.3.2 (https://issues.apache.org/jira/browse/WICKET-1442) that I
was getting.
However, in my AjaxButton.onSubmit( AjaxRequestTarget target, Form form )
when I call my FileUploadField.getFileUpload() it is always null.
Any suggestions?
Note: I submitting my form in a ModalWindow.
Here is my code:
public class NewImageTransformPanel extends LocalBasePanel {
private FileUploadField fileUpload;
private ImageTransform image;
public NewImageTransformPanel(final ModalWindow window,
final Integer campaignId) {
super(window.getContentId());
image = new ImageTransform();
Form form = new Form("transformForm");
form.setOutputMarkupId(true);
add(form);
form.add(new
PTFeedbackPanel("feedback").setOutputMarkupId(true));
form.setModel(new CompoundPropertyModel(image));
form.add( new RequiredTextField( "imageFileName" ));
fileUpload = new FileUploadField("imageFile");
form.setMultiPart( true );
form.add(fileUpload);
form.add(new AjaxButton("addTransform") {
public void onSubmit(AjaxRequestTarget target, Form
form) {
try {
String fileName =
fileUpload.getFileUpload()
.getClientFileName();
<=== NPE every time
String contentType =
fileUpload.getFileUpload()
.getContentType();
byte[] content =
fileUpload.getFileUpload().getBytes();
if (StoredImage.isAllowed(contentType)
== false) {
error("File type is not
supported. "
+ "Supported
types are JPEG, GIF, and PNG.");
target.addComponent(form);
return;
}
image.setImageContentType(contentType);
image.setImageContent(content);
CampaignMgr.getInstance().addImageTransform(campaignId,
image);
info("Image transformation was added
successfully.");
window.close(target);
} catch (Exception e) {
e.printStackTrace();
error(e);
target.addComponent(form);
}
}
@Override
protected void onError(AjaxRequestTarget target, Form
form) {
target.addComponent(form);
}
});
form.add(new AjaxLink("cancel") {
public void onClick(AjaxRequestTarget target) {
window.close(target);
}
});
}
}
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