dunianyaasupna

var store = ;
var itemsInGroup = [];

store.each( function(record) {
  itemsInGroup.push( {
      boxLabel: record.someLabel, 
      name: record.someName, 
      inputValue: record.someValue
    });  
});

var myGroup = { 
  xtype: 'radiogroup', 
  fieldLabel: 'My Dynamic Radiogroup', 
  items: itemsInGroup 
};