我改变了方法,现在,我正确地选择了无线电值。
问题:初始化时选择了我的一个收音机(首先加载然后用户可以更改选择),但第一次没有选择收音机,如何正确初始化“已选择”?
@model Demo.Web.ViewModels.HomeViewModel
@{
ViewBag.Title = "Two Page";
}
@using (Html.BeginForm("Index", "Two", FormMethod.Post, new Dictionary<string, object> { { "data-bind", "submit:onSubmit" } }))
{
<table>
<tr>
<td>
<div data-bind="foreach: items">
<input type="radio" name="items" data-bind="attr: { value: id }, checked: $root.selected" />
<span data-bind="text: name"></span>
</div>
<div data-bind="text: selected">
</div>
</td>
</tr>
</table>
<input type="submit" name="send" value="Send" />
}
<script type="text/javascript">
var viewModel = {
items: [
{ "id": 1, "name": "one", "selected": false },
{ "id": 2, "name": "two", "selected": true },
{ "id": 3, "name": "three", "selected": false }
],
selected: ko.observable(),
onSubmit: function(){
var x = this.selected();
}
};
$(function() {
ko.applyBindings(viewModel);
});