使用来自Knockout的Editable Grid Example并绑定到Steve Sanderson blog,我试图让DatePicker或datetimepicker在可编辑网格中工作。我通过使用由Ryan Niemeyer设置的datepicker绑定开始,但这对于可观察数组无效。将DatePicker与Knockout可观察数组结合使用
因此,代码看起来像:
ko.bindingHandlers.datetimepicker = {
init: function(element, valueAccessor, allBindingsAccessor) {
//initialize datepicker with some optional options
var options = allBindingsAccessor().datetimepickerOptions || {};
$(element).datetimepicker(options);
//handle the field changing
ko.utils.registerEventHandler(element, "change", function() {
var observable = valueAccessor();
console.log("changing", observable);
observable($(element).datetimepicker("getDate"));
});
//handle disposal (if KO removes by the template binding)
ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
$(element).datetimepicker("destroy");
});
},
update: function(element, valueAccessor) {
var value = ko.utils.unwrapObservable(valueAccessor()),
current = $(element).datetimepicker("getDate");
console.log("updating");
if (value - current !== 0) {
console.log("setting", value);
$(element).datetimepicker("setDate", value);
console.log("just set", $(element).datetimepicker("getDate"));
}
}
};
与绑定:
<td><input class ="datetimeClass" style="width:130px" data-bind="datetimepicker: CPDateString, uniqueName: true" /></td>
任何帮助或例子将不胜感激。我知道这与observablearray中的每个项目有关,但它本身并不是可观察的,但对Javascript来说是新的,我无法弄清楚如何解决它。
我在Change事件中出现错误:“字符串不是函数”。如果我添加一些代码,试图让现场观察到,像这样:
$(initialData).each(function(gift) {
this.CPDateString = ko.observable(this.CPDateString);
});
那么的DateTimePicker作品,并正确地更新浏览器,但该数据没有发布,所以它没有更新的实际礼物数组,即得到张贴回来:
var initialDataLocations = @Html.Raw(JsonConvert.SerializeObject(ViewBag.Locations));
var initialData = @Html.Raw(JsonConvert.SerializeObject(Model));
var viewModel = {
availableLocations: ko.observableArray(initialDataLocations),
gifts: ko.observableArray(initialData),
save: function() {
ko.utils.postJson(location.href, { gifts: this.gifts })
}
};
在此先感谢。
在save函数中指向viewModel的'this'是什么?你可以使用'arrayMap'来映射初始数据,如下所示: gift:ko.utils.arrayMap(initialData,function(gift){newReflection(gift.CPDateString); }); – mhu 2013-02-21 16:17:31