目前，我可以使用复选框显示在树结构中具有父子关系的项目。现在我需要将选中的复选框存储到一个数组中，以便我可以通过 ajax 将该数据提交到服务器。
我是 AngularJS 的新手。我尝试使用 ng-model 值进行打印。但它不起作用。
你能帮我解决如何将选中的复选框存储到数组中吗？
下面是代码。
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
<script>
var app, list;
list = [
{
name: 'Developer',
opened: true,
children: [
{
name: 'Front-End',id:1,
children: [
{
name: 'Jack',id:2,
title: 'Leader'
},
{
name: 'John',id:3,
title: 'Senior F2E'
},
{
name: 'Jason',id:4,
title: 'Junior F2E'
}
]
},
{
name: 'Back-End',id:5,
children: [
{
name: 'Mary',id:6,
title: 'Leader'
},
{
name: 'Gary',id:7,
title: 'Intern'
}
]
}
]
},
{
name: 'Design',id:8,
children: [{
name: 'Freeman',id:9,
title: 'Designer'
}]
},
{
name: 'S&S',id:10,
children: [{
name: 'Nikky',id:11,
title: 'Robot'
}]
}
];
app = angular.module('testApp', []).controller('treeTable', [
'$scope',
'$filter',
function ($scope, $filter) {
$scope.list = list;
//$scope.item.selected={};
$scope.initCheckbox = function (item, parentItem) {
return item.selected = parentItem && parentItem.selected || item.selected || false;
};
$scope.toggleCheckbox = function (item, parentScope) {
if (item.children != null) {
$scope.$broadcast('changeChildren', item);
}
if (parentScope.item != null) {
return $scope.$emit('changeParent', parentScope);
}
};
$scope.$on('changeChildren', function (event, parentItem) {
var child, i, len, ref, results;
ref = parentItem.children;
results = [];
for (i = 0, len = ref.length; i < len; i++) {
child = ref[i];
child.selected = parentItem.selected;
if (child.children != null) {
results.push($scope.$broadcast('changeChildren', child));
} else {
results.push(void 0);
}
}
return results;
});
return $scope.$on('changeParent', function (event, parentScope) {
var children;
children = parentScope.item.children;
parentScope.item.selected = $filter('selected')(children).length === children.length;
parentScope = parentScope.$parent.$parent;
if (parentScope.item != null) {
return $scope.$broadcast('changeParent', parentScope);
}
});
}
]);
app.filter('selected', [
'$filter',
function ($filter) {
return function (files) {
return $filter('filter')(files, { selected: true });
};
}
]);
</script>
</head>
<body>
<div class="wrapper" ng-app="testApp" ng-controller="treeTable">
<table class="table-nested">
<tbody ng-class="{opened: item.opened}" ng-include="'table_tree.html'" ng-repeat="item in list"></tbody>
</table>
<script id="table_tree.html" type="text/ng-template">
<tr ng-class="{parent: item.children}" ng-init="parentScope = $parent.$parent; initCheckbox(item, parentScope.item)">
<td class="cell-name">
<div class="indent" ng-click="item.opened = !item.opened"></div>
<input ng-change="toggleCheckbox(item, parentScope)" ng-model="item.selected" type="checkbox" />
{{item.name}}
</td>
</tr>
<tr class="children" ng-if="item.children && item.children.length > 0">
<td colspan="4">
<table class="table-child">
<tbody ng-class="{opened: item.opened}" ng-include="'table_tree.html'" ng-init="level = level + 1" ng-repeat="item in item.children"></tbody>
</table>
</td>
</tr>
</script>
{{item.selected | json}}
</div>
</body>
最佳答案
也许你可以这样做:
JS:
$scope.seleceds = {};
$scope.initCheckbox = function (item, parentItem) {
return $scope.seleceds[item.id] = parentItem && $scope.seleceds[parentItem.id] || $scope.seleceds[item.id] || false;
};
$scope.toggleCheckbox = function (item, parentScope) {
if (item.children != null) {
$scope.$broadcast('changeChildren', item);
}
if (parentScope.item != null) {
return $scope.$emit('changeParent', parentScope);
}
};
$scope.$on('changeChildren', function (event, parentItem) {
var child, i, len, ref, results;
ref = parentItem.children;
results = [];
for (i = 0, len = ref.length; i < len; i++) {
child = ref[i];
$scope.seleceds[child.id] = $scope.seleceds[parentItem.id];
if (child.children != null) {
results.push($scope.$broadcast('changeChildren', child));
} else {
results.push(void 0);
}
}
return results;
});
return $scope.$on('changeParent', function (event, parentScope) {
var children;
children = parentScope.item.children;
$scope.seleceds[parentScope.item.id] = $filter('selected')(children, $scope.seleceds).length === children.length;
parentScope = parentScope.$parent.$parent;
if (parentScope.item != null) {
return $scope.$broadcast('changeParent', parentScope);
}
});
额外过滤器:
app.filter('selected', ['$filter', function ($filter) {
return function (files, obj) {
return $filter('filter')(files, function (value) {
return obj[value.id]
});
};
}]);
app.filter('objToArray', function () {
return function (input) {
var results = [];
for (var key in input) {
input[key] && results.push(Number(key))
}
return results;
}
});
HTML:
<input ng-change="toggleCheckbox(item, parentScope)" ng-model="seleceds[item.id]" type="checkbox"/>
并更改{{item.selected | json}} 到 {{seleceds|objToArray}}
您可以观看演示HERE
关于javascript - 将选中的复选框存储到 AngularJS 树结构的数组中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38428904/