敲除添加/绑定数据到对象里面foreach

Question

你好溢出！

我有问题绑定数据到一个foreach循环内的对象。现在我正在使用typeahead来获取自动完成功能。当我这样做时，我可以将某个特定对象的Id保存在一个变量中。我想将此Id添加到产品对象。

问题是将特定ID附加到特定产品。

用户可以根据需要添加或删除具有自动完成功能的产品/输入字段。

function Product() { 
    var self = this; 
    self.id = ko.observable(null); 
    self.name = ko.observable(); }; 

    var dataWithID = 12345; //this id comes from another function, will change. 
    //TODO: Attach the specific id to the product object. 

var ViewModel = function() { 
    var self = this; 
    self.selected = ko.observable(); 
    self.products = ko.observableArray([new Product()]); 
    self.add = function() { 
     self.products.push(new Product()); 
    } }; 


ko.applyBindings(new ViewModel()); 

http://jsfiddle.net/cH2NX/1/

/J

Answer 1

只需将它推入产品，像这样

function Product(id) { 
    var self = this; 
    self.id = ko.observable(id); 
    self.name = ko.observable(); 
}; 

var ViewModel = function() { 
    var self = this; 
    self.selected = ko.observable(); 
    self.products = ko.observableArray([new Product()]); 
    self.add = function() { 
     self.products.push(new Product(dataWithID)); // <-- pass in here 
    } 
};