web component - Polymer 1.0: Using template dom-repeat inside paper-menu elements to display iron-pages on selection -


using polymer 1.0, have created paper-drawer-panel layout. in drawer have menu using paper-menu paper-items bound iron-pages. took example content switcheroo core-pages -- polycasts #09 , converted use polymer 1.0 elements. in code below can see commented section in paper-items hard-coded. works fine.

my next step try , build menu dynamically using <template is="dom-repeat"> element iterate on arbitrary array of menu items. menu rendered correctly (i can see menu items bound array), cannot click on items , no iron-pages displayed. seems data-category attribute used attr-for-selected not working inside <template is="dom-repeat">.

in ways can work? edit: removing attr-for-selected attributes , switching iron-pages using index work, relying on index of array not option in situation.

my index.html follows:

<!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes"> <meta name="mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-capable" content="yes"> <title>my test</title> <script src="bower_components/webcomponentsjs/webcomponents-lite.min.js"></script> <link rel="import" href="bower_components/polymer/polymer.html"> <link rel="import" href="bower_components/iron-icons/iron-icons.html"> <link rel="import" href="bower_components/iron-pages/iron-pages.html"> <link rel="import" href="bower_components/paper-drawer-panel/paper-drawer-panel.html"> <link rel="import" href="bower_components/paper-toolbar/paper-toolbar.html"> <link rel="import" href="bower_components/paper-header-panel/paper-header-panel.html"> <link rel="import" href="bower_components/paper-icon-button/paper-icon-button.html"> <link rel="import" href="bower_components/paper-item/paper-item.html"> <link rel="import" href="bower_components/paper-styles/paper-styles.html"> <link rel="import" href="bower_components/paper-menu/paper-menu.html"> <style> </style> </head> <body> <my-app></my-app> <dom-module id="my-app"> <style> </style> <template> <paper-drawer-panel>   <paper-header-panel drawer class="fit">     <paper-toolbar>       <div>drawer</div>     </paper-toolbar>     <paper-menu class="content fit" selected="{{page}}" attr-for-selected="data-category">       <!-- works --> <!--         <paper-item data-category="item1" label="item1">             <span>john smith</span>         </paper-item>         <paper-item data-category="item2" label="item2">             <span>jane doe</span>         </paper-item> -->        <!-- not work -->       <template is="dom-repeat" items="{{names}}">         <paper-item data-category="{{item.itemnum}}" label="{{item.itemnum}}">           <span>{{item.first}}</span><span>{{item.last}}</span><span>{{item.itemnum}}</span>         </paper-item>       </template>      </paper-menu>   </paper-header-panel>   <paper-header-panel main class="fit">     <paper-toolbar>       <paper-icon-button icon="menu" paper-drawer-toggle></paper-icon-button>       <div class="flex">main content</div>     </paper-toolbar>     <iron-pages selected="{{page}}" attr-for-selected="data-category">       <section data-category="item1">         <h1>item 1</h1>         <div>item 1 content...</div>       </section>       <section data-category="item2">         <h1>item 2</h1>         <div>item 2 content...</div>       </section>     </iron-pages>   </paper-header-panel> </paper-drawer-panel> </template> <script> polymer({   is: "my-app",   ready: function() {     this.names = [{itemnum: "item1", first: "john", last: "smith"}, {itemnum: "item2", first: "jane", last: "doe"}];   } }); </script> </dom-module> </body> </html>

try <paper-item data-category$="{{item.itemnum}}" label$="{{item.itemnum}}">, docs, call paper-item.setattribute('data-category', itemnum) instead of paper-item.data-category = itemnum.

https://www.polymer-project.org/1.0/docs/devguide/data-binding.html#attribute-binding


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