我在ng-click上调用一个函数,该函数应该使用JSON数据中的值更新html。
我不知道这应该如何工作或我在这里做错了什么?
我的代码如下所示:
<table class="table table-striped table-bordered">
<thead class="head">
<th>Product</th>
<th>Description</th>
<th>Price(Rs.)</th>
<th>Add to Cart</th>
</thead>
<tr ng-repeat="row in rows | filter:search | orderBy:'product'" >
<td>{{row.product}}</td>
<td>{{row.description}}</td>
<td>{{row.price}}</td>
<td><a ng-click="addToCart(price)">Add to cart</a></td>
</tr>
</table>
以下是我的邮箱http://jsbin.com/UBIwOsE/2/
有人可以帮我告诉我如何用红色边框更新div。我需要在点击添加到购物车时更新它的书名和价格。
由于
答案 0 :(得分:8)
你的垃圾箱里有一些错误。
1)有ng-click="{{addToChat(price)}}"
。当然,应删除{{ }}
。
2)您的addToCart()
未完成
我更新了您的收件箱http://jsbin.com/UBIwOsE/5/
// In your controller
// init variables
$scope.price = $scope.selected = 0;
// fired with ng-click()
$scope.addToCart = function(price) {
$scope.price += Math.abs(price);
$scope.selected++;
}
// In your template
// 1) the ng-click directive looks like this
<td><a ng-click="addToCart(row.price)">Add to cart</a></td>
// 2) show infos
<div class="cart">
You have {{selected}} books and Total cost is {{price}}
</div>
它有效,但并不完美。看看,从中学习,并阅读更多关于angularjs的教程(我建议你观看http://egghead.io视频,免费且精心制作)
问题2 (来自评论)
我更新了邮箱http://jsbin.com/UBIwOsE/11/
<!-- template -->
<!-- the parameter sent is the object itself (row instead of row.price) -->
<a ng-click="addToCart(row)">Add to cart</a>
<!-- ... ->
You have {{books.length}} books and Total cost is {{price}}<br />
<!-- ng-show shows or hides the element based on the expression. -->
<div ng-show="books.length > 0">
These books are
<ul>
<!-- ng-repeat duplicates the template for each element in the collection. -->
<li ng-repeat="book in books">{{book.product}} ( {{book.price}} )</li>
</ul>
</div>
-
// controller
// we push the object into the array, so that we can access to all the data into the template ( {{book.product}} - {{book.price}} )
// $scope.selected is useless now. The array's length is enough
// we keep $scope.price because it's easier than recalculating it from the array.
$scope.addToCart = function(row) {
$scope.price += row.price;
$scope.books.push(row);
}
现在,您必须跟踪$scope.books
中的重复元素
有很多方法可以做到这一点。我最喜欢的是http://jsbin.com/UBIwOsE/12
我做了很多工作。轮到你了解:了解发生了什么。如果您对此代码不太了解,请不要改进此代码。
答案 1 :(得分:1)
row.price
中应为ng-click
。
<td><a ng-click="addToCart(row.price)">Add to cart</a></td>