fetchItemByIdentity() 沒有按預期工作
[英]fetchItemByIdentity() doesn't work as expected
問題描述
我的頁面上有一個ItemFileWriteStore 。 當我單擊DataGrid中的任何行時，我可以獲得該行的 id，但是當我嘗試使用該 id 執行fetchItemByIdentity時，它總是返回null 。 知道為什么會這樣嗎？
我正在使用 Dojo 1.5。
function getRemoveFormatter(id) {
return '<a href="#" onclick="deleteItem(' + id + ');return false;"><img src="/images/icons/delete.png" /></a>';
}
function deleteItem(id) {
console.log(id);
window.grid.store.fetchItemByIdentity({
identity: id,
onItem: function(item, request) { console.log(item); }
});
//window.grid.store.deleteItem(id);
}
dojo.ready(function() {
var store = new dojo.data.ItemFileWriteStore({data:{items:[]}});
window.grid = new dojox.grid.DataGrid({
store: store,
structure: [
{ name: "id", field: "id", width: "50px" },
{ name: "Stylist", field: "stylist", width: "100px" },
{ name: "Service", field: "service", width: "200px" },
{ name: "Length", field: "length", width: "50px" },
{ name: "Remove", field: "remove", width: "30px", formatter: getRemoveFormatter }
],
identifier: "id",
label: "id"});
dojo.byId("services_grid").appendChild(grid.domNode);
grid.startup();
observeAppointmentServiceAddClick(window.grid);
getAppointmentItems();
});
2 個解決方案
解決方案1
2 已采納 2011-05-02 14:06:26
嘗試對聲明商店和網格的方式進行一些小改動。 標識符和 label 屬性屬於商店中商品旁邊的數據部分。
var store = new dojo.data.ItemFileWriteStore({data:{
items:[],
identifier: "id",
label: "id"}});
window.grid = new dojox.grid.DataGrid({
store: store,
structure: [
{ name: "id", field: "id", width: "50px" },
{ name: "Stylist", field: "stylist", width: "100px" },
{ name: "Service", field: "service", width: "200px" },
{ name: "Length", field: "length", width: "50px" },
{ name: "Remove", field: "remove", width: "30px", formatter: getRemoveFormatter }
]});
解決方案2
1 2013-06-13 00:00:45
這是關於 jsfiddle 的更簡單的代碼和答案。
http://jsfiddle.net/martlark/UkKXW/1/
<html>
<head><!--dojo stuff--></head>
<body>
<div id='store'></div>
<div id='log'></div>
</body>
</html>
dojo.require("dojo.data.ItemFileWriteStore");
var store = null;
function getItem(id) {
store.fetchItemByIdentity({
identity: id,
onItem: function (item, request) {
var v = store.getValue(item, 'value');
dojo.byId('log').innerHTML = 'getItem(' + id + ') =' + v;
}
});
}
dojo.ready(function () {
var items = [];
for (var p = 0; p < 5; p++) {
items.push({
id: p,
value: 'v ' + p
});
}
store = new dojo.data.ItemFileWriteStore({
data: {
identifier: 'id',
items: items
}
});
var gotList = function (items, request) {
var itemsList = "<ul>";
dojo.forEach(items, function (i) {
itemsList += '<li> id:' + p + ' = ' + store.getValue(i,
"value") + "</li>";
});
itemsList += '</ul>';
dojo.byId('store').innerHTML = itemsList;
}
var gotError = function (error, request) {
alert("The request to the store failed. " + error);
}
// Invoke the search
store.fetch({
onComplete: gotList,
onError: gotError
});
getItem('2');
});
requestAnimationFrame無法正常工作
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