AngularJS：实现动态添加输入控件功能（转）

时间：2021-09-28 01:52:38

http://www.cnblogs.com/ilovewindy/p/3849428.html

<!DOCTYPE html>

<html>

    <head>

        <meta charset="utf-8">

        <title></title>

        <script src="http://code.jquery.com/jquery.js"></script>

        <script src="js/angular/angular.min.js"></script>

        <script src="SendSafeMessageController.js"></script>

    </head>

    <body ng-app="ftitApp">

        <div class="form-group" ng-controller="SendSafeMessageController">

            <label class="col-md-2 control-label">答复内容:</label>

            <div class="col-md-10">

                <div ng-repeat="reply in fchat.replies">

                    <div class="form-group">

                        <div class="col-md-12">

                            <div class="col-md-1">

                                <label for="reply{{$index + 1}}">回答{{$index + }}</label>

                            </div>

                            <div class="col-md-9">

                                <input type="text" class="form-control" ng-model="reply.value"

                                       id="reply{{$index + 1}}" name="reply{{$index + 1}}" />

                            </div>

                            <div class="col-md-2 img-link">

                                <a href="" ng-click="fchat.incrReply($index)">

                                    <img src="img/plus.png" alt="plus" width="30px" height="30px" />

                                </a>

                                <a href="" ng-click="fchat.decrReply($index)" ng-show="fchat.canDescReply">

                                    <img src="img/minus.png" alt="minus" width="30px" height="30px"/>

                                </a>

                            </div>

                        </div>

                    </div>

                </div>

                <input type="hidden" id="replies" name="replies" value="{{fchat.combineReplies()}}" />

            </div>

</div>

    </body>

</html>

SendSafeMessageController.js代码如下：

var ftitAppModule = angular.module('ftitApp', []);

ftitAppModule.controller('SendSafeMessageController',function($scope,$log){

    $scope.fchat = new Object();

    $scope.fchat.replies = [{key: , value: ""}];

    // 初始化时由于只有1条回复，所以不允许删除

    $scope.fchat.canDescReply = false;

    // 增加回复数

    $scope.fchat.incrReply = function($index) {

        $scope.fchat.replies.splice($index + , ,

            {key: new Date().getTime(), value: ""});   // 用时间戳作为每个item的key

        // 增加新的回复后允许删除

        $scope.fchat.canDescReply = true;

    }

    // 减少回复数

    $scope.fchat.decrReply = function($index) {

        // 如果回复数大于1，删除被点击回复

        if ($scope.fchat.replies.length > ) {

            $scope.fchat.replies.splice($index, );

        }

        // 如果回复数为1，不允许删除

        if ($scope.fchat.replies.length == ) {

            $scope.fchat.canDescReply = false;

        }

    }

    $scope.fchat.combineReplies = function() {

        var cr = "";

        for (var i = ; i < $scope.fchat.replies.length; i++) {

            cr += "#" + $scope.fchat.replies[i].value;

        }

        cr = cr.substring();

       // $log.debug("Combined replies: " + cr);

        return cr;

    }

});

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