select - Dojo dgrid :(预)在渲染中选择行

Question

如何配置dgrid及其存储以定义渲染行时是否已经选择了行？

例如，如果我的行数据是这样的：

{
  id: 1,
  name: 'Item Name',
  selected: true
}

我当前的代码是在商店填充后遍历整个集合，但是我确信必须有一种更有效的方法来执行此操作。

var items = [
  {id: 1, name: 'Item 1', selected: true},
  {id: 2, name: 'Item 2', selected: false}
];

require(
  [
    "dgrid/OnDemandGrid",
    "dgrid/Selection",
    "dojo/store/Memory",
    "dojo/_base/declare",
    "dojo/_base/array"
  ],

  function (OnDemandGrid, Selection, Memory, declare, array) {
    var store = new Memory({
        data: items,
        idProperty: "id"
    });

    var grid = new declare([OnDemandGrid, Selection])({
        selectionMode: "multiple",
        columns: {
          id: { label: "ID" },
          name: { label: "Name" }
        },
        store: store
      }, "MyGrid");

      array.forEach(items, function (item) {
        if (item.selected) {
          grid.select(grid.row(item.id));
        }
      });

      grid.startup();
    });
  }
);

Answer 1

看来Selection.js的用法与https://github.com/SitePen/dgrid/blob/master/Selection.js#L433相同，但是我才有了一个主意，如何使选择成为渲染过程的一部分：

var grid = new declare([OnDemandGrid, Selection])({
    selectionMode: "multiple",
    store: store,
    columns: {
        id: {
            label: "ID",
            get: function(item) {
                var grid = this.grid;
                if (item.selected === true) {
                    grid.select(grid.row(item.id));
                }
                return item.id;
            }            
        },
        name: { label: "Name" }
    },
    "MyGrid"
);

实际观看： http://jsfiddle.net/phusick/stxZc/