This question is similar to knockoutjs databind with jquery-ui datepicker, but instead of the jQueryUI datepicker, I would like to use one of the Bootstrap datepickers.
Here is what I Ended up
ko.bindingHandlers.datepicker = {
init: function (element, valueAccessor, allBindingsAccessor) {
//initialize datepicker with some optional options
var options = {
autoclose: true,
format: 'yyyy-mm-dd',
}
//var options = allBindingsAccessor().datepickerOptions || {};
$(element).datepicker(options);
//when a user changes the date, update the view model
ko.utils.registerEventHandler(element, "changeDate", function (event) {
var value = valueAccessor();
if (ko.isObservable(value)) {
var myDate = event.date;
var month = myDate.getMonth() + 1;
var monthText = month;
if (month < 10)
monthText = "0" + month;
var day1 = parseInt(myDate.getDate());
var dayText = day1;
if (day1 < 10)
dayText = '0' + day1;
value(myDate.getFullYear() + '-' + monthText + '-' + dayText);
}
});
},
update: function (element, valueAccessor) {
var widget = $(element).data("datepicker");
//when the view model is updated, update the widget
if (widget) {
widget.date = ko.utils.unwrapObservable(valueAccessor());
widget.setValue(widget.date);
}
}};