今天dojo grid编辑小问题，找了半天才找到问题，
1、问题
2、原因
数据单元没有索引列->id
3、修改前代码
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Demo: Editing in a Grid</title>
<link rel="stylesheet" href="dijit/themes/claro/claro.css" media="screen">
<link rel="stylesheet" href="dojox/grid/resources/Grid.css" />
<link rel="stylesheet" href="dojox/grid/resources/claroGrid.css" />
</head>
<body class="claro">
<h1>Demo: Editing in a Grid</h1>
<p>The following grid shows the multiple editing capabilities built into dojox/grid/DataGrid.</p>
<div id="grid"></div>
<!-- load dojo and provide config via data attribute -->
<script src="dojo/dojo.js" data-dojo-config="isDebug: true, async: true"></script>
<script>
require([
"dojox/grid/DataGrid",
"dojox/grid/cells",
"dojo/store/Memory",
"dojo/data/ObjectStore",
"dojo/domReady!"
], function(DataGrid, cells, Memory, ObjectStore ){
var grid;
gridLayout = [{
defaultCell: { width: 8, editable: true, type: cells._Widget, styles: 'text-align: right;' },
cells: [
{ name: 'Date', field: 'col8', width: 10, editable: true},
{ name: 'Priority', styles: 'text-align: center;', field: 'col1', width: 10},
{ name: 'Mark', field: 'col2', width: 5, styles: 'text-align: center;'},
{ name: 'Status', field: 'col3',styles: 'text-align: center;' },
{ name: 'Message', field: 'col4', width: 10 },
{ name: 'Amount', field: 'col5'},
{ name: 'Amount', field: 'col5'}
]
}]; var data = [
{ col1: "normal", col2: false, col3: "new", col4: 'But are not followed by two hexadecimal', col5: 29.91, col6: 10, col7: false, col8: new Date() },
{ col1: "important", col2: false, col3: "new", col4: 'Because a % sign always indicates', col5: 9.33, col6: -5, col7: false, col8: new Date() },
{ col1: "important", col2: false, col3: "read", col4: 'Signs can be selectively', col5: 19.34, col6: 0, col7: true, col8: new Date() }
]; var objectStore = new Memory({data:data}); // global var "test_store"
test_store = new ObjectStore({objectStore: objectStore}); // create the grid.
grid = new DataGrid({
store: test_store,
structure: gridLayout,
"class": "grid"
}, "grid");
grid.startup(); });
</script>
</body>
</html>
4、修改地方
