以下是相关代码:
这段代码是一个View(位于父页面占位符中的局部视图),我有这个View的控制器执行9次。当我不使用knockout.js时它工作正常......但是把它放在一个淘汰模板中,它似乎只执行了一次。我错过了什么?
@using (Html.BeginFooterScripts())
{
<script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/knockout/knockout-3.3.0.js"></script>
<script type="text/javascript" src="/Content/Northwestern/js/_libs/knockout.mapping/knockout.mapping.2.4.1.js"></script>
<script type="text/javascript" src="~/Content/Northwestern/js/views/TabPanel/location-card.js"></script>
<script type="text/javascript">
var once = true;
$(function() {
if (once) {
initialize();
once = false;
}
});
</script>
<script>
$(function() {
geoLocate(function(location) {
var latitude = location.coords.latitude;
var longitude = location.coords.longitude;
displayLocation('@Model.LocationId', latitude, longitude);
});
});
</script>
}
这里是location-card.js
var applied = false;
var geoLocateError = function onError(error) {
alert(error.message);
};
function ViewModel() {
var self = this;
self.currentLocation = {
latitude: 0,
longitude: 0
};
}
var viewModel = new ViewModel();
$(function () {
});
function initialize() {
ko.applyBindings(viewModel);
// geoLocate(function(location) {
// initLocation(location);
// }, geoLocateError);
}
/**********************************************
* Location Functions
**********************************************/
function initLocation(location) {
viewModel.currentLocation = {
latitude: location.coords.latitude,
longitude: location.coords.longitude
};
}
function displayLocation(id, lat, lng) {
var apiUrl = '/api/northwestern/locations/getlocationbyid/' + id;
var data = {
'latitude': lat,
'longitude': lng
};
self.LocationId = id;
$.getJSON(apiUrl, data, function (response) {
var fragment = document.createDocumentFragment(),
container = document.createElement('div'),
viewModel = response;
fragment.appendChild(container);
// merge together all the display types into a commma-separated list
response.TypeListDisplay = $.map(response.Types, function (obj, t) {
return obj.ItemName;
}).join(', ');
ko.renderTemplate(
"location-detail-template",
viewModel, {
afterRender: function () {
$('#detail-container').html(container.innerHTML);
}
},
container
);
});
}
这是应该渲染9次的标记:
<div class="row">
<div class="col lg-6 xl-5">
<div class="section-content">
<div id="detail-container">
</div>
</div>
<script type="text/html" id="location-detail-template">
<div class="card card-locations-alt">
<div class="card-content">
<figure class="map">
<a target="_blank" href="https://www.google.com/maps/dir/Current+Location/@Model.Location.Latitude, @Model.Location.Longitude">
<img src="https://maps.googleapis.com/maps/api/staticmap?center=@Model.Location.Latitude,@Model.Location.Longitude&zoom=13&size=65x65&maptype=roadmap&markers=color:0x776EA7%7Clabel:%7C @Model.Location.Latitude,@Model.Location.Longitude">
</a>
</figure>
<div class="location-content" itemscope="" itemtype="http://schema.org/LocalBusiness">
<div class="location-name">
<h2 class="location-title" itemprop="name" data-bind="text: ItemName"></h2>
</div>
<div class="distance">
<i class="material-icons">place</i> <span data-bind="text: Distance.toFixed(1)"> Mi</span>
</div>
<div class="location-phone">
<a data-bind="attr: { 'href': clickToCallify(Phone), 'data-track-event': 'Find a Location - Detail', 'data-track-action': 'call icon' }" class="tel" itemprop="telephone"></a>
</div>
</div>
<div class="location-actions flex-container align-center no-print">
<a class="locations-icon flex-item tel" href="tel:8475358000">
<div class="call-icon uppercase">
<i class="material-icons">phone</i><br>
call
</div>
</a>
<a data-bind="attr: {'href' : 'https://www.google.com/maps/dir/Current+Location/' + Latitude + ',' + Longitude, 'data-track' : 'Find a Location', 'data-track-action' : 'directions', 'data-track-label' : ItemName }" target="_blank" class="locations-icon flex-item uppercase">
<i class="material-icons">directions</i><br>
directions
</a>
<a href="" class="location-detail locations-icon flex-item uppercase">
<i class="material-icons">info</i><br>
details
</a>
</div>
</div>
</div>
</script>
</div>
<div class="col lg-6 xl-7">
@(new HtmlString(Model.Body))
</div>
</div>