在下面的Div
中,我在某些数据中使用ng-repeat
来填充列表。 在执行此操作时,如果某个TR
标签符合特定要求,我希望不要通过在x.Equipment_Cost_Child != 0
上使用ng-if
指令来创建某个 但是,无论表达式如何,我都无法使ng-if
正常工作。
如果x.Equipment_Cost_Child > 0
,如何让它只显示 TR
?我试过"x.Equipment_Cost_Child > 0
我还ng-if
直接附加到 tr 标签而不是div 标签。
你觉得怎么样?
<div ng-repeat="x in reservationdata" ng-click="customerClickedEvent(x.ID)">
<table class="unit">
Item:{{$index + 1}}
<tr>
<td style="font-weight:bold">Equipment Type: </td>
<td style="font-weight:bold">{{x.EquipmentType}}</td>
</tr>
<tr>
<td style="font-weight:bold" >Equipment Count: </td>
<td style="font-weight:bold">{{x.Equipment_Count}}</td>
</tr>
<tr>
<td>Adult Quantity: </td>
<td>{{x.Equipment_Count_Adult}} Cost @ ${{x.Duration_Cost_Adult}}</td>
</tr>
<div ng-if="x.Equipment_Cost_Child != 0"> //this line doesn't work
<tr>
<td>Child Quantity: </td>
<td>{{x.Equipment_Count_Child}} Cost @ ${{x.Duration_Cost_Child}}</td>
</tr>
</div>
<tr>
<td>Sending Letters: </td>
<td> {{x.Equipment_Form_Status}}</td>
</tr>
<td> Total Cost For Item: </td>
<td> ${{(x.Equipment_Count_Adult * x.Duration_Cost_Adult)+(x.Equipment_Count_Child * x.Duration_Cost_Child)}}
在一个标签中同时使用 ng-if 和 ng-repeat:
<tr ng-repeat="feature in features"
ng-if="feature.id === 1" >
</tr>
或者,如果你想有条件地显示一些模板,你可以使用 ng-switch,例如:
<tr
ng-repeat="feature in features"
ng-switch="feature.id" >
<span ng-switch-when="1"></span>
<span ng-switch-when="2"></span>
</tr>
替换:
<div ng-if="x.Equipment_Cost_Child != 0"> //this line doesn't work
<tr>
<td>Child Quantity: </td>
<td>{{x.Equipment_Count_Child}} Cost @ ${{x.Duration_Cost_Child}}</td>
</tr>
</div>
由:
<tr ng-show="x.Equipment_Cost_Child > 0">
<td>Child Quantity: </td>
<td>{{x.Equipment_Count_Child}} Cost @ ${{x.Duration_Cost_Child}}</td>
</tr>
<div>
标签正在破坏您的<tr>
列表。您可以直接在<tr>
上使用ng-if
。
编辑:使用ng-show
或ng-hide
显示/隐藏元素。它的重量要轻得多,因为ng-if
触发 DOM 重新编译并生成新的作用域。