好吧,我有一個使用Knockout的問題,它無法解析可觀察數組的子元素上的點擊綁定。我懷疑我的地圖存在問題,但我無法弄清楚。我有我創建了一個的jsfiddle:敲除 - 綁定單擊嵌套數組的子元素
http://jsfiddle.net/internetH3ro/ShjeE/1/
這裏是我的JS:
var PaycheckBudgetItem = function(data) {
var self = this;
self.PaycheckBudgetItemId = ko.observable(data.PaycheckBudgetItemId);
self.PaycheckBudgetId = ko.observable(data.PaycheckBudgetId);
self.Description = ko.observable(data.Description);
self.Amount = ko.observable(data.Amount);
self.DueDate = ko.observable(data.DueDate);
self.IsPaid = ko.observable(data.IsPaid);
self.PaidStatus = ko.observable(data.PaidStatus);
self.updateStatus = function() {
alert('test');
};
};
var mapping = {
'Items': {
create: function(options) {
return new PaycheckBudgetItem(options.data);
}
}
};
var PaycheckBudget = function(data) {
var self = this;
self.PaycheckBudgetId = ko.observable(data.PaycheckBudgetId);
self.PaycheckBudgetDate = ko.observable(data.PaycheckBudgetDate);
self.PaycheckBudgetAmount = ko.observable(data.PaycheckBudgetAmount);
self.Remaining = ko.observable(data.Remaining);
self.Items = ko.observableArray(data.Items);
ko.mapping.fromJSON(data.Items, mapping, self.Items);
};
var BudgetListViewModel = function(data) {
var self = this;
self.budgets = ko.observableArray(data);
};
var data = [
{
"PaycheckBudgetId": 1,
"PaycheckBudgetDate": "11/9/2012",
"PaycheckBudgetAmount": 2315,
"Items": [
{
"PaycheckBudgetItemId": 11,
"PaycheckBudgetId": 1,
"Description": "Rent",
"Amount": 400,
"DueDate": "11/9/2012",
"IsPaid": "Unpaid",
"PaidStatus": false},
{
"PaycheckBudgetItemId": 12,
"PaycheckBudgetId": 1,
"Description": "Cell Phone",
"Amount": 166,
"DueDate": "11/9/2012",
"IsPaid": "Unpaid",
"PaidStatus": false}
],
"Remaining": 1749},
{
"PaycheckBudgetId": 2,
"PaycheckBudgetDate": "11/23/2012",
"PaycheckBudgetAmount": 2315,
"Items": [
{
"PaycheckBudgetItemId": 3,
"PaycheckBudgetId": 2,
"Description": "Rent",
"Amount": 400,
"DueDate": "11/23/2012",
"IsPaid": "Unpaid",
"PaidStatus": false},
{
"PaycheckBudgetItemId": 4,
"PaycheckBudgetId": 2,
"Description": "Tuition",
"Amount": 250,
"DueDate": "11/23/2012",
"IsPaid": "Unpaid",
"PaidStatus": false}
],
"Remaining": 1665}
];
ko.applyBindings(new BudgetListViewModel(data), $('#budget-list-container')[0]);
這裏是我的HTML:
<div id="budget-list-container" class="well sidebar-nav">
<ul class="nav nav-list" data-bind="template: { name: 'budgetTemplate', foreach: budgets, as: 'budget' }">
<script type="text/html" id="budgetTemplate">
<li class="nav-header">
Paycheck for <span data-bind="text: PaycheckBudgetDate"></span> - <span data-bind="text: formatCurrency(PaycheckBudgetAmount)"></span>
</li>
<li>
<table class="table table-bordered table-condensed">
<thead>
<tr>
<th>Description</th>
<th>Amount</th>
<th>Due Date</th>
<th>Paid/Unpaid</th>
</tr>
</thead>
<tbody data-bind="template: { name: 'budgetItemTemplate', foreach: Items, as: 'budgetItem' }"></tbody>
</table>
Remaining: <span data-bind="text: formatCurrency(Remaining)"></span>
<hr />
</li>
</script>
<script type="text/html" id="budgetItemTemplate">
<tr>
<td><span data-bind="text: Description"></span></td>
<td><span data-bind="text: formatCurrency(Amount)"></span></td>
<td><span data-bind="text: DueDate"></span></td>
<td>
<button class="btn-link pull-right update-status" data-bind="text: IsPaid, click: updateStatus" />
</td>
</tr>
</script>
</ul>
</div>
它的肉是這樣的。我有2個KO模型,PaycheckBudget和PaycheckBudgetItem。 PaycheckBudget包含一個可觀察的PaycheckBudgetItem模型數組。在名爲「updateStatus」的PaycheckBudgetItem模型上有一個函數綁定到HTML中的單擊事件。當我加載我的頁面時,出現錯誤「無法解析綁定,updateStatus未定義」。
我假設我的問題是在我的項目映射的某個地方。如果我刪除點擊處理程序,一切都會正確綁定並顯示。
如果有人能幫助我,也許指出我錯過了什麼,那將是超級有用的。我對Knockout的東西有些陌生,所以很可能我錯過了一些明顯/簡單的東西。
(沒有,沒有在我的小提琴數據是敏感的或現實世界,只是虛擬數據。:))
爾加,我走出房間Jabbr的抓住一些午餐,忘了跳回。謝謝你,羅伯特,我去了你的建議後,我大吃一頓了這個漢堡。 :) –