<div data-bind="foreach: Contacts">
   <a data-bind="click: $parent.Foo($data),text: Name">link</a>
</div>
<button data-bind="click: AddContacts">click</button>

和js代码：

var viewmodel = ko.mapping.fromJS({"Selected":null,"Contacts":[]});
viewmodel.AddContacts = function(){
    this.Contacts([{"Name":"C1"},{"Name":"C2"}]);
}

viewmodel.Foo = function (contact) {
    alert(contact.Name);
}

ko.applyBindings(viewmodel);

当我点击按钮时,每个联系人都会呼叫Foo.在任何一个链接被点击之前,我根本就不希望这样被调用.