Question

我是Knockout JS的新手。我没有通过谷歌在与淘汰赛js的映射上找到很多帮助。我有一个来自服务器的JSON。我使用knockout js映射库映射JSON。与属性关联的数据绑定dom不会更新。我已经包含了一个使用脚本的小提琴。注意json对象被映射到observable。单击加载按钮时，将映射json，并且属性“test”的值应显示在标记中。任何想法为什么它没有出现在标签中？

JS小提琴中有一个有效的例子。

http://jsfiddle.net/sLZmQ/

这是正在映射的JSON

 var json = {
"id": 9,
"test": "John Doe",
"firstName": "John",
"lastName": "Doe",
"referenceNumber": "BUY-08",
"position": "Buyer",
"type": "Buyer",
"telephone": "028 82 240780",
"email": "m@email.com",
"departmentId": 3,
"departmentName": "DEPT B",
"country": "United Kingdom"
};

我的示例脚本

var masterModel = function()
{
var self = this;
self.members = ko.observableArray([]);
self.websites = ko.observableArray([]);    
self.seoData = ko.observable();
self.test =  ko.observable();
self.loadWebsite = function(website)
{

var json = {
"id": 9,
"test": "John Doe",
"firstName": "John",
"lastName": "Doe",
"referenceNumber": "BUY-08",
"position": "Buyer",
"type": "Buyer",
"telephone": "028 82 240780",
"email": "m@email.com",
"departmentId": 3,
"departmentName": "DEPT B",
"country": "United Kingdom"
};

              self.test(ko.mapping.fromJS(json))
              console.log(self.test);


}    
}
    var master = new masterModel();

   ko.applyBindings(master);

问题是当你点击loadWebsite时，$ data.test.test没有更新！

Answer 1

我更新了，似乎有一些小的改动：

http://jsfiddle.net/bYQu7/

关键是我解除了'test'可观察性：

<h1 data-bind="text: test().test">?</h1>

我还初始化了初始值：

self.test = ko.observable({ test: ko.observable('WTF') });

Knockout JS不会更新映射对象

1 个答案: