以下に例を示します: http://jsfiddle.net/jearles/Dt7Ka/
カスタム バインディングを使用して jquery-ui スライダーを統合し、Knockout を使用して入力をキャプチャし、正味額を計算します。
--
UI
<h2>Slider Demo</h2>
Savings: <input data-bind="value: savings, valueUpdate: 'afterkeydown'" />
<div style="margin: 10px" data-bind="slider: savings, sliderOptions: {min: 0, max: 100, range: 'min', step: 1}"></div>
Spent: <input data-bind="value: spent, valueUpdate: 'afterkeydown'" />
<div style="margin: 10px" data-bind="slider: spent, sliderOptions: {min: 0, max: 100, range: 'min', step: 1}"></div>
Net: <span data-bind="text: net"></span>
モデルを見る
ko.bindingHandlers.slider = {
init: function (element, valueAccessor, allBindingsAccessor) {
var options = allBindingsAccessor().sliderOptions || {};
$(element).slider(options);
$(element).slider({
"slide": function (event, ui) {
var observable = valueAccessor();
observable(ui.value);
},
"change": function (event, ui) {
var observable = valueAccessor();
observable(ui.value);
}
});
ko.utils.domNodeDisposal.addDisposeCallback(element, function () {
$(element).slider("destroy");
});
},
update: function (element, valueAccessor) {
var value = ko.unwrap(valueAccessor());
if (isNaN(value)) {
value = 0;
}
$(element).slider("value", value);
}
};
var ViewModel = function() {
var self = this;
self.savings = ko.observable(10);
self.spent = ko.observable(5);
self.net = ko.computed(function() {
return self.savings() - self.spent();
});
}
ko.applyBindings(new ViewModel());