[WICKET-2621] Ajax buttons inside ModalWindows don't submit properly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.4
• Fix Version/s: 1.4.5, 1.5-M1
• Assignee: Igor Vaynberg
• Reporter: Alex Grant
• Created: 16/Dec/09 03:01
• Updated: 17/Dec/09 01:13
• Resolved: 16/Dec/09 23:19

Description

I have a ModalWindow that contains an IndicatingAjaxButton. When I click the button, I get a big Java error complaining that the form submit wasn't multipart.

Digging into the javascript in wicket-ajax.js, I found this from line 1102 in the method handleMultipart

multipart=multipart||form.enctype=="multipart/form-data";

if (multipart==false) {
     // nothing to handle
    return false;
 }

When this executed, multipart was false, and enctype was "" and therefore the submit aborted. This may be the cause.

Here's the Java stacktrace

java.lang.IllegalStateException: ServletRequest does not contain multipart content
	at org.apache.wicket.protocol.http.servlet.MultipartServletWebRequest.<init>(MultipartServletWebRequest.java:113)
	at org.apache.wicket.protocol.http.servlet.MultipartServletWebRequest.<init>(MultipartServletWebRequest.java:83)
	at org.apache.wicket.extensions.ajax.markup.html.form.upload.MultipartRequest.<init>(MultipartRequest.java:41)
	at org.apache.wicket.extensions.ajax.markup.html.form.upload.UploadWebRequest.newMultipartWebRequest(UploadWebRequest.java:66)
	at org.apache.wicket.markup.html.form.Form.handleMultiPart(Form.java:1651)
	at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:850)
	at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:135)
	at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177)
	at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:299)
	at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:119)
	at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
	at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250)
	at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
	at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
	at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
	at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479)
	at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)