polymer - Using the custom element body for data -

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i looking implementing custom datagrid want data provided inline contents of custom element:

<x-datagrid>   <row>     <col>value 1</col><col>value 2</col>   </row> </x-datagrid>

you can achieve menu , tab elements populate based on this...how done though? have looked @ component source core-dropdown-menu:

https://github.com/polymer/core-dropdown-menu/blob/master/core-dropdown-menu.html

doesn't tell me much...where else look?

i able polymer.dom(this) in ready function.

an example, loads data child <option> elements component's data property:

ready: function() {   var self = this; // since "this" gets lost in foreach   polymer.dom(this).queryselectorall('option').foreach(function(opt) {     self.push('data', {id: opt.value, text: opt.textcontent});   }); },

where component looks like:

<my-component>   <option value="1">option 1</option>   <option value="2">option 2</option>   <option value="3">option 3</option> </my-component>

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