每行敲除不同的单选按钮列表

Question

我有一份人员名单.对于每个人,我都有真假.我希望这个每个人都有约束力.如果您检查下面的小提琴,它正确绑定但我的单选按钮不能正常工作.我希望每一行都有自己的单选按钮(每行不同的名称).

例如.第1行单击为true,第2行单击为false.这应该是允许的,但名称与删除第一行的选择相矛盾.谢谢

http://jsfiddle.net/ef3fV/5/

<table width="300px;">
    <thead>
        <tr>
            <th>Name</th>
            <th>Status</th>
        </tr>
    </thead>
    <tbody data-bind="foreach: people">
        <tr>
            <td>
                <span data-bind="text: Name"></span>
            </td>
            <td>
                <input type="radio" name="Status" value="true" data-bind="checked: Status" />
                <input type="radio" name="Status" value="false" data-bind="checked: Status" />
            </td>
            <td><button data-bind="click: $root.changeStatus">Change Status</button></td>
        </tr>
    </tbody>
</table>

​

function People(data) {
    var self = this;
    self.Name= data.Name;
    self.Status = ko.observable(data.Status);
}

function PeopleViewModel(userId) {
    var self = this;

    self.people = ko.observable([
                            { Name: 'Bert', Status: true },
                            { Name: 'Charles', Status: true },
                            { Name: 'Denise', Status: false }
                        ]);
    self.changeStatus = function()
    {
        alert("Change " + this.Name + " to " + this.Status);
    };
}

ko.applyBindings(new PeopleViewModel());

​

Answer 1

一些东西:

• name所有人的属性都是一样的.您可以使用attr绑定并使用人员姓名为每个单选按钮组添加前缀来更改此设置.
• 你可能想要创造people一个observableArray而不仅仅是一个observable.
• Status如果您希望更新基础数据模型,则每个人的属性也应该是可观察的.
• 在value您分配Status到应该是一个字符串.

这是修改后的代码及更新:

HTML:

<table width="300px;">
    <thead>
        <tr>
            <th>Name</th>
            <th>Status</th>
        </tr>
    </thead>
    <tbody data-bind="foreach: people">
        <tr>
            <td>
                <span data-bind="text: Name"></span>
            </td>
            <td>
                <input type="radio" value="true" data-bind="attr: { name: Name + '-status' }, checked: Status" />
                <input type="radio" value="false" data-bind="attr: { name: Name + '-status' }, checked: Status" />
            </td>
            <td><button data-bind="click: $root.changeStatus">Change Status</button></td>
        </tr>
    </tbody>
</table>

JavaScript的:

function People(data) {
    var self = this;
    self.Name = data.Name;
    self.Status = ko.observable(data.Status);
}

function PeopleViewModel(userId) {
    var self = this;

    self.people = ko.observableArray([
    {
        Name: 'Bert',
        Status: ko.observable('true')
    },
    {
        Name: 'Charles',
        Status: ko.observable('true')
    },
    {
        Name: 'Denise',
        Status: ko.observable('false')
    }]);

    self.changeStatus = function() {
        alert("Change " + this.Name + " to " + this.Status());
        if (this.Status() === "true") {
            this.Status('false');
        } else {
            this.Status('true');
        }
    };
}

ko.applyBindings(new PeopleViewModel());?

示例: http ://jsfiddle.net/AKKvz/