如果他等于某个字符串,我想检查我的“类型”绑定,但看起来他没有执行它。
我的html页面:
<div class="socialWrapper" data-bind="foreach: facebookposts">
<!-- ko if: {Type()==='link'}-->
<img data-bind='attr: { src: FromPicture }'/>
<p data-bind="text:From"></p>
<!-- /ko -->
</div>
当我刚回来时:
<p data-bind="text: Type"></p>
我的输出=“字符串”
如您所见,我想根据 if 语句获得正确的 observables。视图模型:
function Post(allData) {
var profileImageUrl = "http://graph.facebook.com/" + allData.from.id + "/picture?type=large";
this.Type = ko.observable(allData.type);
this.From = ko.observable(allData.from.name);
this.FromPicture = ko.observable(profileImageUrl);
this.Created = ko.observable(allData.created_time);
this.Comments = ko.observable(allData.comments.count);
this.Message = "";
this.Likes = "";
this.LinkImage = "";
this.LinkUrl = "";
this.LinkName = "";
this.LinkTitle = "";
this.LinkDescription = "";
this.Story = "";
this.Photo = "";
this.PhotoDescription = "";
if (allData.type === 'status') {
this.Message = ko.observable(allData.message);
this.Likes = ko.observable(allData.likes);
}
if (allData.type === 'link') {
this.Message = ko.observable(allData.message);
this.LinkImage = ko.observable(allData.picture);
this.LinkUrl = ko.observable(allData.link);
this.LinkName = ko.observable(allData.name);
this.LinkTitle = ko.observable(allData.caption);
this.LinkDescription = ko.observable(allData.description);
this.Likes = ko.observable(allData.likes);
}
if (allData.type === 'photo') {
this.Story = ko.observable(allData.story);
this.Photo = ko.observable(allData.picture);
this.PhotoDescription = ko.observable(allData.description);
}
}
var masterViewModel = {
facebookposts: ko.observableArray([]),
getFacebookObjects: function () {
var getUrl = '/api/facebookposts?accesstoken=@Session["fb_access_token"]';
$.ajax({
url: getUrl,
type: 'GET',
dataType: 'json',
success: function (allData) {
var mappedPosts = $.map(allData, function (item) {
return new Post(item);
});
masterViewModel.facebookposts(mappedPosts);
},
statuscode: {
401: function () {
console.log("Not Authorized");
}
}
});
}
};
$(document).ready(function () {
ko.applyBindings(masterViewModel);
masterViewModel.getFacebookObjects();
});
任何人都知道如何解决这个 if 语句?