windows 8 - WinJS binding to nested control -


i trying implement semantic zoom control in application. here fragment of 1 of pages:

<div id="semanticzoomdiv" data-win-control="winjs.ui.semanticzoom">              <div id="zoomedinlistview"                 class="win-selectionstylefilled"                 data-win-control="winjs.ui.listview"                 data-win-bind="wincontrol.itemdatasource: groupedlist.datasource; wincontrol.groupdatasource: groupedlist.groups.datasource;"                 data-win-options="{                  itemtemplate: select('#mediumlisticontexttemplate'),                  groupheadertemplate: select('#headertemplate'),                  selectionmode: 'none',                  tapbehavior: 'none',                  swipebehavior: 'none'              }">             </div>              <div id="zoomedoutlistview"                 data-win-control="winjs.ui.listview"                 data-win-bind="wincontrol.itemdatasource: groupedlist.groups.datasource;"                 data-win-options="{                   itemtemplate: select('#semanticzoomtemplate'),                  selectionmode: 'none',                  tapbehavior: 'invoke',                  swipebehavior: 'none'              }">             </div>          </div>

the problem is, semanticzoomdiv empty.

however, if remove attribute

data-win-control="winjs.ui.semanticzoom"

from semanticzoomdiv 2 listviews render , correctly filled data. seems winjs has problems binding data nested controls? (listview controls inside semanticzoom control - after removal of outer semanticzoom control data binds correctly).

i managed make semantic zoom work using binding global namespace via data-win-options, want provide data page through view model, hence trials use data-win-bind.

i believe object scoping issue, not on win8 @ moment verify. if i'm right, can expose groupedlist javascript code this.

winjs.namespace.define("yourapp", {     groupedlist: groupedlist, });

and change declarative binding include yourapp namespace. way data not in global namespace.

alternatively, can data binding in .js file

zoomedinlistview.wincontrol.itemdatasource = groupedlist.datasource; zoomedinlistview.wincontrol.groupdatasource = groupedlist.groups.datasource; zoomedoutlistview.wincontrol.itemdatasource = groupedlist.groups.datasource;

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