「knockoutjs：Example 3: 親の親の値を使う（？）：The custom binding Control descendant bindings」を別ウィンドウで開く
各種サンプルとソース一覧 | PCスキルの小技・忘却防止メモ |

knockoutjs：Example 3: 親の親の値を使う（？）：The custom binding Control descendant bindings

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>knockoutjs：Example 3: 親の親の値を使う（？）：The custom binding Control descendant bindings</title>
<script type="text/javascript" src="jquery-1.5.1.min.js"></script>
<script type="text/javascript" src="knockout-2.1.0beta.js"></script>
</head>
<body>
<h1>Example 3: 親の親の値を使う（？）：The custom binding Control descendant bindings</h1>
<div data-bind="withProperties: { displayMode: 'twoColumn' }">
The outer display mode is <span data-bind="text: displayMode"></span>.
<div data-bind="withProperties: { displayMode: 'doubleWidth' }">
The inner display mode is <span data-bind="text: displayMode"></span>, but I haven't forgotten
that the outer display mode is <span data-bind="text: $parentContext.displayMode"></span>.
</div>
</div>
<script type="text/javascript">
ko.bindingHandlers.withProperties = {
init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
// Make a modified binding context, with a extra properties, and apply it to descendant elements
var newProperties = valueAccessor(),
childBindingContext = bindingContext.createChildContext(viewModel);
ko.utils.extend(childBindingContext, newProperties);
ko.applyBindingsToDescendants(childBindingContext, element);
// Also tell KO *not* to bind the descendants itself, otherwise they will be bound twice
return { controlsDescendantBindings: true };
}
};
var viewModel = {};
ko.applyBindings(viewModel);
</script>
<div style="font-size:10pt;text-align:right;margin-top:0.5em;">
<a href="//tips.recatnap.info/" target="_top">PCスキルの小技・忘却防止メモ</a> -
<a href="//tips.recatnap.info/wiki/" target="_top">PCスキルの小技・忘却防止メモのまとめ（wiki）</a>
</div>
<div style="font-size:10pt;text-align:center;margin-top:0.5em;padding:0.5em;border-top:1px solid #ccc;">
</div>
</body>
</html>