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如何在Backbone中绑定更改事件?
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Stack Overflow用户
提问于 2012-06-08 19:50:14
回答 2查看 51.6K关注 0票数 20

我正在尝试加载国家/地区列表,并选择我只想调用警报的国家/地区,但不知何故,我无法捕获选择框的更改事件。

有人能帮帮我吗?

以下是包含视图、模型和集合部分的代码,以及html格式的模板脚本

    <!DOCTYPE html>
<html>
<head>
    <title>Backbone</title>
</head>
<body>
    <script type="text/template" id="country_select_template">
        <select id="country-selector">
             <% _.each(countries, function(country) {%>
                <option value="<%= country.fipsCode %>"><%= country.countryName %></option>
            <% }); %>
        </select>
    </script>
    <div id="country_select_container">
        Loading country...
    </div>

    <!--div>
    <select id="state" disabled=true>
        <option value="NAN">Select State</option>                    
    </select>
    </div>
    <div>
    <select id="city" disabled=true>
        <option value="NAN">Select City</option>                    
    </select>
    </div-->
</div>
<ul id="names-list">
</ul>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script src="http://ajax.cdnjs.com/ajax/libs/underscore.js/1.1.4/underscore-min.js"></script>
<script src="http://ajax.cdnjs.com/ajax/libs/backbone.js/0.3.3/backbone-min.js"></script>
<script>

Country = Backbone.Model.extend();

CountryList = Backbone.Collection.extend({
    model : Country,
    url : "https://dl.dropbox.com/u/18190667/countryList.json",
    parse : function(response) {
        return response.geonames;
    }
});

Countries = new CountryList();

CountryView = Backbone.View.extend({
    events: {
        "change #country-selector": "countrySelected"
    },

    countrySelected: function(){
        alert("You can procceed!!!");
    },

    countrySelected  :function(){
        alert("Procceed");
    },

    initialize: function(){
        var countries = [];
        var self = this;
        Countries.fetch({
            success: function(){
                self.render();
            }
        });
    },

    render: function(){
        var self = this;
        var country_select_template = _.template($("#country_select_template").html(), {
            countries: Countries.toJSON(),
        });
        $('#country_select_container').html(country_select_template);
        return this;
    }
});
var view = new CountryView();
</script>

</body>
</html>
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/10948291

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