前端之家收集整理的这篇文章主要介绍了
dojo小例子（4）DataGrid对动态数据的增删，
前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
<script>
require(['dojo/_base/array','dojo/_base/event','dojo/on','dojox/grid/DataGrid','dojo/store/JsonRest','dojo/store/Memory','dojo/store/Cache','dojo/data/ObjectStore','dijit/form/Button','dojo/parser','dojo/domReady!'],function(array,event,on,DataGrid,JsonRest,Memory,Cache,ObjectStore,Button,parser){
parser.parse();
var url = "http://"+document.location.host;
json = new Cache(
new JsonRest({
target: url + "/dojo/rest/users?id=" // rest url
}),new Memory()
);
store = new ObjectStore({objectStore: json});
/*set up layout*/
var layout = [[
{'name': 'Column 1','field': 'id','width': '100px'},{'name': 'Column 2','field': 'name',{'name': 'Column 3','field': 'desc','width': '200px'}
]];
/*create a new grid*/
grid = new DataGrid({
id: 'grid',store: store,height: '200px',structure: layout,rowSelector: '20px'});
/*append the new grid to the div*/
grid.placeAt("gridDiv");
/* attach an event handler */
var i = 0;
on(button2,'click',function(e){
if( i == 0 ){
i = grid.rowCount;
}
/* set the properties for the new item: */
var myNewItem = {id: ++i,name: "Mediate",desc: 'Newly added values'};
/* Insert the new item into the store:*/
store.newItem(myNewItem);
store.save({onComplete: saveDone,onError: saveFailed}); // 触发向后台提交动作
}
);
/* attach an event handler */
on(button1,function(e){
/* Get all selected items from the Grid: */
var items = grid.selection.getSelected();
if(items.length){
array.forEach(items,function(selectedItem){
if(selectedItem !== null){
/* Delete the item from the data store: */
store.deleteItem(selectedItem);
}
});
}
event.stop(e);
store.save({onComplete: saveDone,onError: saveFailed}); // 触发向后台提交动作
}
);
/*Call startup() to render the grid*/
grid.startup();
function saveDone(){
console.log("Done saving.");
}
function saveFailed(err){
console.log("Save Failed.");
console.log(err);
}
});
</script>
<body class="claro">
<p>
This example shows,how to add/remove rows
</p>
<div id='gridDiv'></div>
<p>
<button data-dojo-id='button2' id='button2'>
Add Row
</button>
<button data-dojo-id='button1' id='button1'>
Remove Selected Rows
</button>
</p>
</body>
