如何使用knockout更改表的行顺序。我有小提琴:
使用knockout-sortable.js。实施例
请协助。 我的小提琴如下:
JSFiddle示例
[1]:http://jsfiddle.net/rniemeyer/hw9B2/
[2]:https://jsfiddle.net/nagarajputhiyavan/x9vc10zu/3/
答案 0 :(得分:6)
由于Knockout的整个想法是你使用你的数据模型并且Knockout让UI保持与它同步,所以基本问题只是重新排序你的数组(并且它需要是一个observableArray
来敲除注意它的变化)。
在您建议的两种方法中,“向上”和“向下”按钮更容易,这就是我使用的方法。我为每一行添加了向上和向下按钮,第一行禁用了Up,最后一行禁用了。
向上按钮是click
- 绑定到moveUp
函数,该函数拼接当前行并将其拼接回来。 Down做了同样的事情,但连续拼接下来。
var AppModel = function() {
var self = this;
this.itemsToReceive = ko.observableArray([{
RecordId: 1,
IsPriority: true,
IsInTransit: true,
IsSpecialRecall: true
}, {
RecordId: 2,
IsPriority: false,
IsInTransit: true,
IsSpecialRecall: true
}, {
RecordId: 3,
IsPriority: false,
IsInTransit: true,
IsSpecialRecall: true
}]);
this.moveUp = function(data) {
var idx = self.itemsToReceive.indexOf(data),
tmp = self.itemsToReceive.splice(idx, 1);
self.itemsToReceive.splice(idx - 1, 0, tmp[0]);
};
this.moveDown = function(data) {
var idx = self.itemsToReceive.indexOf(data),
tmp = self.itemsToReceive.splice(idx, 1);
self.itemsToReceive.splice(idx + 1, 0, tmp[0]);
};
this.loadGridServerSide = function() {
self.itemsToReceive([{
RecordId: 1,
IsPriority: true,
IsInTransit: true,
IsSpecialRecall: true
}]);
}
}
ko.applyBindings(new AppModel());

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<button data-bind="click: loadGridServerSide" class="btn btn-primary">Server Side Invoke</button>
<table class="table static-table table-bordered table-hover no-bottom-margin">
<thead>
<tr>
<th>Item Number</th>
<th>Priority?</th>
<th>Transit?</th>
<th>SpecialRecall?</th>
</tr>
</thead>
<tbody data-bind="foreach: itemsToReceive">
<tr>
<td data-bind="text: RecordId"></td>
<td>
<input type="checkbox" data-bind="checked: IsPriority" />
</td>
<td>
<input type="checkbox" data-bind="checked: IsInTransit" />
</td>
<td>
<input type="checkbox" data-bind="checked: IsSpecialRecall" />
</td>
<td>
<button data-bind="disable: $index() === 0, click: $parent.moveUp">Up</button>
<button data-bind="disable: $index() === $parent.itemsToReceive().length - 1, click: $parent.moveDown">Down</button>
</td>
</tr>
</tbody>
</table>
&#13;
使用拖放会稍微复杂一些,因为重新排序发生在UI中,需要反映到数据模型中。您可以在自定义绑定处理程序和such a handler has been written中执行此操作。这是an article about it。