Problem with repeating DropArea
Problem with repeating DropArea
- Subject: Problem with repeating DropArea
- From: Markus Ruggiero <email@hidden>
- Date: Mon, 07 Sep 2015 17:39:38 +0200
| I am trying to adapt the Wonder example DragAndDropLists. The example has 2 drop areas with hard coded id. I need to provide 1 source drop area and several destination drop areas. These are inside a WORepetition. I tried to use the repetition loopvar (item binding) to create a unique id attribute but the app crashes with a null pointer exception. Obviously even when the drop area is inside the WORepetition the _javascript_ functions in the background seem to create/populate/whatever code/function upfront before the loop actually starts. Any idea how I could create an id for the drop area?
Code currently looks something like this (just the relevant snippet): <webobject name = "sectionsRepetition"> <webobject name = "assignedIndustryTechdocTypesDropArea"> <table style="border:solid 1 red"> <tr> <td style="border:solid 1px red"><webobject name = "sectionTitle" /></td> </tr>
<tr>
with the bindings:
sectionsRepetition : WORepetition { list = sectionsList; item = sectionsLoopvar; } assignedIndustryTechdocTypesDropArea : AjaxDroppable { id = assignedDropArea; updateContainerID = "everythingUpdateContainer"; action = droppedOnAssignementArea; droppedObject = droppedObject; onComplete = onCompleteFunction; }
and in the component: public String assignedDropArea() { return "assignedDropArea_" + sectionsLoopvar.shortText(); }
Crash is because sectionsLoopvar is null.
Thanks for any help ---markus---
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