Angular JS：ng-repeat with dynamic ng-model [英] Angular JS: ng-repeat with dynamic ng-model

问题描述

我有这个工作的代码片段，它重复多次，因此非常适合ng-repeat循环。
例如，我的代码的两个实例如下。

I have this working piece of code that is repeated multiple times, hence would be great for a ng-repeat loop. For example, two instances of my code are the following.

    <div>
        <input type="text" ng-model="searchParamaters.userName" placeholder="User Name"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[0].param)" ng-show="showParam(filterParamDisplay[0].param)"></i>
    </div>
    <div>
        <input type="text" ng-model="searchParamaters.userEmail" placeholder="User Email"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[1].param)" ng-show="showParam(filterParamDisplay[1].param)"></i>
    </div>

这是Javascript中的filterParamDisplay数组：

This is the filterParamDisplay array in Javascript:

    $scope.filterParamDisplay = [
        {param: 'userName', displayName: 'User Name'},
        {param: 'userEmail', displayName: 'User Email'}
    ];

我一直试图将其转换为ng-repeat循环，但到目前为止还没有成功。
这就是我编码的内容。

I have been trying to do that into a ng-repeat loop, but without success so far. This is what I have coded atm.

    <div ng-repeat="param in filterParamDisplay">
        <input type="text" ng-model="searchParams[{{param}}]" placeholder="{{param.displayName}}"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[$index].param)" ng-show="showParam(filterParamDisplay[$index].param)"></i>
    </div>

问题出现在上面的ng-model变量中，进入ng-click中的$ index和ng-show。
不确定是否可以这样做，非常感谢任何帮助，谢谢！

The problems are into the ng-model variable above, and into the $index in the ng-click and ng-show. Not sure if this can be done at all, any help is much appreciated, thanks!

更新：
感谢您的所有答案，使用

UPDATE: Thanks for all the answers, using

     <div ng-repeat="p in filterParamDisplay">
...
   ng-model="searchParams[p]" 

效果很好！

仍然在使用$ index无法正常工作的showParam和resetSearchField函数上挣扎。这是我的代码。

Still struggling on the showParam and resetSearchField functions which do not work properly yet using $index. Here is my code.

    $scope.searchParams = $state.current.data.defaultSearchParams;

    $scope.resetSearchField = function (searchParam) {
        $scope.searchParams[searchParam] = '';
    };

    $scope.showParam = function (param) {
        return angular.isDefined($scope.searchParams[param]);
    };

推荐答案

将ng-models绑定到 searchParameters.userName 和 searchParameters.userMail 在第一个示例中，您必须使用 searchParameters [param.param] 用于ng-repeat中的ng-model。也像其他人说的那样，你不需要使用$ index，你在ng-repeat范围内得到了你的对象 param 。

As you bind your ng-models to searchParameters.userName and searchParameters.userMail at first example, you must use searchParameters[param.param] for ng-model in ng-repeat. Also like others said, you don't need to use $index, you got your object as param in ng-repeat scope.

<div ng-repeat="param in filterParamDisplay">
    <input type="text" ng-model="searchParameters[param.param]" placeholder="{{param.displayName}}"/>
    <i class="fa fa-times" ng-click="resetSearchField(param.param)" ng-show="showParam(param.param)"></i>
</div>

这是工作 FIDDLE

Here is working FIDDLE

这篇关于Angular JS：ng-repeat with dynamic ng-model的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！