AngularJs实现全选功能

html代码

<!-- 数据表格 -->
    <div class="table-box">

        <!--工具栏-->
        <div class="pull-left">
            <div class="form-group form-inline">
                <div class="btn-group">
                    <button type="button" class="btn btn-default" title="新建" data-toggle="modal"
                            data-target="#editModal" ng-click="entity={}"><i class="fa fa-file-o"></i> 新建
                    </button>
                    <button type="button" class="btn btn-default" title="删除"><i class="fa fa-trash-o"></i> 删除</button>
                    <button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i
                            class="fa fa-refresh"></i> 刷新
                    </button>
                </div>
            </div>
        </div>
        <div class="box-tools pull-right">
            <div class="has-feedback">
                品牌名称:<input ng-model="searchEntity.name">
                &nbsp;&nbsp;&nbsp;品牌首字母:<input ng-model="searchEntity.firstChar">
                &nbsp;&nbsp;&nbsp;<button class="btn btn-default" ng-click="reloadList()">查询</button>
            </div>
        </div>
        <!--工具栏/-->

        <!--数据列表-->
        <table id="dataList" class="table table-bordered table-striped table-hover dataTable">
            <thead>
            <tr>
                <th class="" style="padding-right:0px">
                    <input id="selall" type="checkbox" class="icheckbox_square-blue"  ng-checked="ifCheckedAll()" ng-click="selectAll($event)">
                </th>
                <th class="sorting_asc" >品牌ID</th>
                <th class="sorting">品牌名称</th>
                <th class="sorting">品牌首字母</th>
                <th class="text-center">操作</th>
            </tr>
            </thead>
            <tbody>
            {{selectIds}}
            <tr ng-repeat="entity in list">
                <td><input type="checkbox" ng-click="updateSelection($event,entity.id)" ng-checked="ifChecked(entity.id)"></td>
                <td>{{entity.id}}</td>
                <td>{{entity.name}}</td>
                <td>{{entity.firstChar}}</td>
                <td class="text-center">
                    <button type="button" class="btn bg-olive btn-xs" data-toggle="modal" data-target="#editModal" ng-click="selectByOne(entity.id)">修改
                    </button>
                </td>
            </tr>

            </tbody>
        </table>

js代码

//更新复选
            $scope.selectIds=[];//选中的ID集合
            $scope.updateSelection=function ($event, id) {
                if ($event.target.checked){//如果被选中，则添加到数组中
                    $scope.selectIds.push(id);
                }else {
                    var index = $scope.selectIds.indexOf(id);
                    $scope.selectIds.splice(index,1);//其中index表示删除的位置，1表示删除一个
                }
            };
            
            $scope.ifChecked=function (id) {
                //如果Id出现在数组中，则需要返回true
                var index=$scope.selectIds.indexOf(id);
                if (index==-1){
                    return false;
                }else {//如果id没有出现在selectIds数组中需要返回false
                    return true;
                }
            };

            $scope.ifCheckedAll=function () {
                //$scope.list中的对象的id 是否都在 $scope.selectIds中
                //如果全中，则返回true
                //如果有一个还在，就返回false
                alert("ifCheckAll");
                for (var i = 0; i < $scope.list.length; i++) {
                    if ($scope.selectIds.indexOf($scope.selectIds[i])==-1){
                        return false;
                    }
                }
                return true;
            };
            //全选与取消全选
            $scope.selectAll=function ($event) {
                alert("dfadfas");
                if ($event.target.checked){
                    for (var i = 0; i < $scope.list.length; i++) {
                        //当前页面的数据的id放到数组中
                        if ($scope.selectIds.indexOf($scope.list[i].id)==-1){
                            $scope.selectIds.push($scope.list[i].id);
                        }
                    }
                }else{
                    for (var i=0;i<$scope.list.length;i++){
                        var index=$scope.selectIds.indexOf($scope.list[i].id);
                        $scope.selectIds.splice(index);
                    }
                }
            };