3
每当我救我的项目我重新映射模型执行以下操作:集淘汰赛CSS结合基础上可观察到的数组项
ko.mapping.fromJS(data, {}, deal);
我的模型看起来像:
{
"DealId": 0,
"BrokenRules": [
{
"Property": "EndDate",
"Description": "End Date is required."
},
{
"Property": "CustomerId",
"Description": "Customer is required."
},
{
"Property": "LiveState",
"Description": "Live State is required."
},
{
"Property": "WorkState",
"Description": "Work State is required."
}
}
我想设置css课div
基于BrokenRules
阵列的内容,并希望我能做类似的事情:
<div class="control-group" data-bind="css: { error: BrokenRules.filterByProperty('Property', 'EndDate').length !== 0 }">
<label class="control-label">End Date</label>
<div class="controls">
<input type="text" class="span2" name="EndDate" data-bind="value: EndDate, enable: $index() === 0" />
</div>
</div>
但这似乎并不奏效。我的filterByProperty在第一次发射时没有任何物品,并且由于某种原因,从不再发射。
ko.observableArray.fn.filterByProperty = function (propName, matchValue) {
return ko.computed(function() {
var allItems = this(), matchingItems = [];
for (var i = 0; i < allItems.length; i++) {
var current = allItems[i];
if (ko.utils.unwrapObservable(current[propName]) === matchValue)
matchingItems.push(current);
}
return matchingItems;
}, this);
}
filterByProperty是从knockoutjs网站取得的。
这样做的任何帮助将不胜感激!谢谢!
,完美的工作!我发誓那些额外的括号将会是我的死亡! :) – mattruma 2013-05-02 15:30:07
如果你设置你的计算器返回一个observableArray,那么你可以有两套:) – 2013-05-02 15:31:55