Hi, I think the check in InMethod grid is wrong.
#isAjax() returns true if the request has either header "Wicket-Ajax" or a parameter with the same name. ART#get() checks whether the currently executed IRequestHandler or the scheduled one after is is AjaxRequestTarget and returns it. But since you do setResponsePage() you schedule a new RenderPageRequestHandler after ART and that's why it is null at that point. On Fri, Jun 22, 2012 at 3:15 PM, Minas Manthos <[email protected]> wrote: > Hi, > > Sorry, I have to explain detailed, but the situation is not complicated. I > run into a NPE and I'm not sure if it's a wicket or inmethod-grid issue (or > even my fault ;-), so I need your assistance where to fill a issue. > > Situation: > I have a page with a inmethod grid. From there I can navigate to a page > containing a edit form. The PageParameters contains a PageReference, so > onSubmit I'm able to response back to the page I came from, like: > > setResponsePage(reference.getPage()); > > This works great when I'm using org.apache.wicket.markup.html.form.Button. > When I'm using AjaxButton instead of Button I'm getting a NPE in > com.inmethod.grid.common.AbstractGrid (line 130, constructor -> > Behavior#afterRender)... > > if (getWebRequest().isAjax()) { > > AjaxRequestTarget.get().appendJavaScript(getInitializationJavascript()); > } > > ...this, because isAjax() is true, but AjaxRequestTarget.get() is null. > > Something I figure out: When I use setResponsePage to a new version (instead > of using Page from PageManager) like: > > Page page = reference.getPage(); > setResponsePage(page.getClass(), page.getPageParameter()) ; > > ...isAjax() returns false, so NPE happens only when I use Page from > PageManager (and I have to). > > So the question is: > It's wrong that isAjax() returns true in case of Page from PageManager > ...or... > is the if-statement of inmethod AbstractGrid wrong? > > Any help would be appreciated. > > regards > minas. > > If you want I can upload a minimal project to reproduce. > wicket 1.5.7, wicketstuff 1.5.5 > > > -- > View this message in context: > http://apache-wicket.1842946.n4.nabble.com/NPE-with-setResponsePage-using-Page-from-PageManager-tp4650186.html > Sent from the Forum for Wicket Core developers mailing list archive at > Nabble.com. -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com
