Knockout.js Visible绑定 

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <script src="js/jquery-1.11.1.min.js"></script>
    <script src="js/knockout-3.3.0.js"></script>
    <script>
        var viewModel = {
            shouldShowMessage: ko.observable(true) 
        };

        var myViewModel = {
            myValues: ko.observableArray([])
        };

        $(function () {
            viewModel.shouldShowMessage(true);
            myViewModel.myValues.push("some value");
            ko.applyBindings(viewModel, $("#no1")[0]);
            ko.applyBindings(myViewModel, $("#no2")[0]);
        })
    </script>
</head>
<body>
    <div id="no1" data-bind="visible: shouldShowMessage">
        You will see this message only when "shouldShowMessage" holds a true value.
    </div>
    <div id="no2" data-bind="visible: myValues().length > 0">
        You will see this message only when 'myValues' has at least one member.
    </div>
</body>

 

posted on 2015-08-17 14:22  YuanSong  阅读(297)  评论(0)    收藏  举报

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