Question

我试图添加一个仅显示特定索引号的按钮：

            <tbody data-ng-repeat="(wholesalerIndex,wholesaler) in wholesalers">
                <tr>
                    <td>
                        <button ng-if="$index != 0 || $index != 3" class="btn btn-danger" data-ng-click="removeWholesaler(wholesaler, wholesalerIndex)">Up</button>
                        <button class="btn btn-danger" data-ng-click="removeWholesaler(wholesaler, wholesalerIndex)">Down</button>
                    </td>
                </tr>
            </tbody>

ng-if isn不工作。当我有1个条件ng-if="$index != 0"时它工作正常，但是当我尝试添加OR（||）语句时它停止工作。

我做错了什么，我该如何解决？

Answer 1

My guess is the logic is off. Try logical and instead of logical or.

<button ng-if="$index != 0 && $index != 3" class="btn btn-danger" data-ng-click="removeWholesaler(wholesaler, wholesalerIndex)">Up</button>

Answer 2

Just use ng-show it will work :)

<tbody data-ng-repeat="(wholesalerIndex,wholesaler) in wholesalers">
    <tr>
        <td>
            <button ng-show="$index != 0 || $index != 3" class="btn btn-danger" data-ng-click="removeWholesaler(wholesaler, wholesalerIndex)">Up</button>
            <button class="btn btn-danger" data-ng-click="removeWholesaler(wholesaler, wholesalerIndex)">Down</button>
        </td>
    </tr>
</tbody>

I hope that this helps.

在HTML中使用ng-if和多个条件

2 个答案: