dojox
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Dojo eXtensions, a rollup of many useful sub-projects and varying states of maturity – from very stable and robust, to alpha and experimental. See individual projects contain README files for details.
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HTML
<html>
<head>
<title>dojox.grid.TreeGrid Lazy-loading for children items test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
<style type="text/css">
@import "../../../dojo/resources/dojo.css";
@import "../../../dijit/themes/claro/claro.css";
@import "../../../dojox/grid/resources/Grid.css";
@import "../../../dojox/grid/resources/tundraGrid.css";
@import "../../../dojox/grid/resources/claroGrid.css";
body {
font-size: 0.9em;
font-family: Geneva, Arial, Helvetica, sans-serif;
padding: 0.5em;
}
.title {
text-align:center;
margin:1em;
}
#grid1 {
width: 65em;
height: 25em;
border: 1px solid #333333;
}
#grid2 {
width: 65em;
height: 25em;
border: 1px solid #333333;
}
</style>
<script type="text/javascript" src="../../../dojo/dojo.js" data-dojo-config="isDebug:true, parseOnLoad: true"></script>
<script type="text/javascript">
dojo.require("dojox.grid.LazyTreeGrid");
dojo.require("dojo.data.ItemFileWriteStore");
dojo.require("dijit.tree.ForestStoreModel");
dojo.require("dojox.grid.LazyTreeGridStoreModel");
dojo.require("dijit.form.Button");
// large dataset
var rows = 5;
var continentItems = [
{name:'South America', type:'continent', population:'', area:''},
{name:'North America', type:'continent', population:'', area:''},
{name:'Asia', type:'continent', population:'', area:''},
{name:'Oceania', type:'continent', population:'', area:''},
{name:'Europe', type:'continent', population:'', area:''}
];
var continentChildrenList = [];
for(var i=0, l=continentItems.length; i<rows; i++){
continentChildrenList.push(dojo.mixin({ id: 'continent_' + i }, continentItems[i%l]));
}
rows = 100;
var countryItems = [
{name:'Egypt', type:'country', population:'', area:''},
{name: 'Kenya', type: 'country', population:'', area:''},
{name:'Sudan', type:'country', population:'', area:''},
{name:'China', type:'country' , population:'', area:''},
{name:'India', type:'country' , population:'', area:''},
{name:'Russia', type:'country' , population:'', area:''},
{name:'Mongolia', type:'country', population:'', area:'' },
{name:'Australia', type:'country', population:'21 million', area:''},
{name:'Germany', type:'country', population:'', area:'' },
{name:'France', type:'country', population:'', area:'' },
{name:'Spain', type:'country', population:'', area:'' },
{name:'Italy', type:'country', population:'', area:'' },
{name:'Mexico', type:'country', population:'108 million', area:'1,972,550 sq km'},
{name:'Canada', type:'country', population:'33 million', area:'9,984,670 sq km'},
{name:'United States of America', type:'country', population:'', area:'' },
{name:'Brazil', type:'country', population:'186 million', area:'' },
{name:'Argentina', type:'country', population:'40 million', area:'' }
];
var countryChildrenList = [];
for(var i=0, l=countryItems.length; i<rows; i++){
countryChildrenList.push(dojo.mixin({ id: 'country_' + i }, countryItems[i%l]));
}
cityItems = [
{name:'Nairobi', type:'city', population:'', area:''},
{name:'Mombasa', type:'city', population:'', area:''},
{name:'Khartoum', type:'city', population:'', area:''},
{name:'Mexico City', type:'city', population:'19 million', area:'', timezone:'-6 UTC'},
{name:'Guadalajara', type:'city', population:'4 million', area:'', timezone:'-6 UTC' },
{name:'Ottawa', type:'city', population:'0.9 million', area:'', timezone:'-5 UTC'},
{name:'Toronto', type:'city', population:'2.5 million', area:'', timezone:'-5 UTC' },
];
var cityChildrenList = [];
for(var i=0, l=cityItems.length; i<rows; i++){
cityChildrenList.push(dojo.mixin({ id: 'city_' + i }, cityItems[i%l]));
}
var dataItems = {
identifier: 'id',
label: 'name',
items: [
{id:'Continent', name:'Continent', type:'', population: '', area: '', children: continentChildrenList},
{id:"Country", name:"Country", type:"", population: '', area: '', children: countryChildrenList},
{id:"City", name:"City", type:"", population: '', area: '', children: cityChildrenList}
]
};
var readStore = new dojo.data.ItemFileReadStore({data: dataItems});
var writeStore = new dojo.data.ItemFileWriteStore({url: "support/countryStore.json?"});
var model1 = new dijit.tree.ForestStoreModel({store: readStore, childrenAttrs: ['children']})
var model2 = new dojox.grid.LazyTreeGridStoreModel({store: writeStore, childrenAttrs: ['children']});
var layout = [
{name: 'Name', field: 'name', width: 'auto'},
{name: 'Type', field: 'type', width: 'auto'},
{name: 'Population', field: 'population', width: 'auto'},
{name: 'Area', field: 'area', width: 'auto'}
]
function refresh(flg){
grid2.refresh(flg);
}
var idx = 0;
function addItem(){
var item = {id:'test_' + idx, name:'test_' + (idx++), type:'', population: '', area: ''};
grid2.store.newItem(item);
}
function addChildItem(){
var parentItem = grid2.selection.getSelected()[0];
if(parentItem){
var item = {id:'test_child_' + idx, name:'test_child_' + (idx++), type:'', population: '', area: ''};
grid2.store.newItem(item, {parent: parentItem, attribute: "children"});
}
}
function removeSelected(){
grid2.removeSelectedRows();
}
function expandSelected(){
var item = grid2.selection.getSelected()[0];
if(item){
grid2.expand(grid2.store.getIdentity(item));
}
}
function collapseSelected(){
var item = grid2.selection.getSelected()[0];
if(item){
grid2.collapse(grid2.store.getIdentity(item));
}
}
</script>
</head>
<body class="claro">
<h1 class="title">Test: dojox.grid.TreeGrid - Lazy-loading for children items</h1>
<h2>grid 1</h2>
<div id='grid1' data-dojo-id='grid1' dojoType='dojox.grid.LazyTreeGrid' summary="A customized tree grid summary"
structure='layout' treeModel='model1' rowSelector='true'></div>
<h2>grid 2</h2>
<div id='grid2' data-dojo-id='grid2' dojoType='dojox.grid.LazyTreeGrid'
structure='layout' treeModel='model2'
keepSelection='true' rowSelector='true'></div>
<button dojoType="dijit.form.Button" onClick="refresh(true)">Refresh with state</button>
<button dojoType="dijit.form.Button" onClick="refresh(false)">Refresh without state</button>
<button dojoType="dijit.form.Button" onClick="addItem()">Add Item</button>
<button dojoType="dijit.form.Button" onClick="addChildItem()">Add Child Item</button>
<button dojoType="dijit.form.Button" onClick="removeSelected()">Delete Selected</button>
<button dojoType="dijit.form.Button" onClick="expandSelected()">Expand Selected</button>
<button dojoType="dijit.form.Button" onClick="collapseSelected()">Collapse Selected</button>
</body>
</html>