带有剔除功能的jQueryUI Spinner小部件 [英] jQueryUI Spinner widget with knockout
本文介绍了带有剔除功能的jQueryUI Spinner小部件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何在Knockout绑定输入中使用 jQuery UI Spinner 小部件?
How can I use a jQuery UI Spinner widget in Knockout bound input?
<tbody data-bind="foreach: orders">
<tr>
<td data-bind="text: Name"></td>
<td><input type="number" style="width: 100px;" data-bind="value: Price" /></td>
<td><input type="number" style="width: 50px;" data-bind="value: VAT" /></td>
<td><input type="number" style="width: 50px;" data-bind="value: Number" /></td>
<td data-bind="text: Final()"></td>
<td><a href="javascript:void(0);" data-bind="click: $root.removeOrder">Remove</a></td>
</tr>
</tbody>
推荐答案
最好的方法是创建custom binding
将spinner
绑定到输入:
The best way is to create custom binding
to bind spinner
to the input:
ko.bindingHandlers.spinner = {
init: function(element, valueAccessor, allBindingsAccessor) {
//initialize spinner with some optional options
var options = allBindingsAccessor().spinnerOptions || {};
$(element).spinner(options);
//handle the field changing
ko.utils.registerEventHandler(element, "spinchange", function () {
var observable = valueAccessor();
observable($(element).spinner("value"));
});
//handle disposal (if KO removes by the template binding)
ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
$(element).spinner("destroy");
});
},
update: function(element, valueAccessor) {
var value = ko.utils.unwrapObservable(valueAccessor()),
current = $(element).spinner("value");
if (value !== current) {
$(element).spinner("value", value);
}
}
};
然后使用它代替value
绑定:
<input
type="number"
style="width: 100px;"
data-bind="spinner: Price, spinnerOptions: { min: 0 } " />
这里正在工作: http://jsfiddle.net/vyshniakov/SwKGb/
这篇关于带有剔除功能的jQueryUI Spinner小部件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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