我有两个这样的父和子数据结构，在父div文件中点击动态指令，用于显示相应的子记录。
但是当我点击父标题链接时，相应的子项目没有显示在表格结构中。任何人都可以看到它出错了吗？
<script>
var app = angular.module('TestApp', []);
app.controller('TestCtrl', function ($scope) {
$scope.parents = [
{ parent_id: '1', name: 'Parent 1', count: '2' },
{ parent_id: '2', name: 'Parent 2', count: '3' },
{ parent_id: '3', name: 'Parent 3', count: '1' }
];
$scope.getchild= function (parent) {
var children_list = [
{ id: '1', parent_id: '1', name: 'Test Child 1' },
{ id: '2', parent_id: '1', name: 'Test Child 2' },
{ id: '3', parent_id: '2', name: 'Test Child 3' },
{ id: '4', parent_id: '2', name: 'Test Child 4' },
{ id: '5', parent_id: '2', name: 'Test Child 5' },
{ id: '6', parent_id: '3', name: 'Test Child 6' }
];
var directive_name = 'clschild_' + parent.parent_id;
app.directive(directive_name, function() {
var child_html = '<div class="panel-body"> \
<table ng-attr-id="tblchild_'+ parent.parent_id + '" class="table table-hover"> \
<thead> \
<tr> \
<td>Name</td> \
</tr> \
</thead> \
<tbody> \
<tr ng-repeat="child in children"> \
<td>{{child.name}}</td> \
</tr> \
</tbody> \
</table> \
</div>';
return {
template: child_html,
link: function (scope) {
scope.$apply(function () { scope.children = children_list; });
}
}
});
};
});
</script>
和相应的HTML
<div ng-app="TestApp" ng-controller="TestCtrl">
<div class="panel panel-default" ng-repeat="parent in parents">
<div class="panel-heading clearfix">
<a data-toggle="collapse" ng-href="#divchild_{{parent.id}}" ng-click="getchild(parent);" class="pull-left" style="padding-top: 7.5px;">{{parent.name}}</a>
</div>
<div ng-attr-id="divchild_{{parent.id}}" class="panel-collapse collapse">
<div class="clschild_{{parent.id}}">
<div class="panel-body">
aaa
</div>
</div>
</div>
</div>
</div>
这是一个 plnkr 示例
我正在日复一日地学习角度，所以如果我在上面的某个地方出错了，请耐心等待。
感谢您的帮助。谢谢。
答案 0 :(得分：1)
我希望这个例子可以帮助你
如果要创建动态指令，则必须使用它们的所有属性，如scope，template，ngTransclude，replace和...
此示例向您展示如何使用范围将控制器中的数据绑定到一个指令。
angular.module("app", []);
angular.module("app").controller("ctrl", function($scope, $filter) {
$scope.parents = [
{ id: 1, name: "Test Parent 1", count: "2" },
{ id: 2, name: "Test Parent 2", count: "3" },
{ id: 3, name: "Test Parent 3", count: "1" }
];
$scope.children = [
{ id: 1, parent_id: 1, name: "Test Child 1" },
{ id: 1, parent_id: 1, name: "Test Child 2" },
{ id: 1, parent_id: 2, name: "Test Child 3" },
{ id: 1, parent_id: 2, name: "Test Child 4" },
{ id: 1, parent_id: 2, name: "Test Child 5" },
{ id: 1, parent_id: 3, name: "Test Child 6" }
];
$scope.getChild = function(parentId) {
var findChildren = $filter("filter")($scope.children, {
parent_id: parentId
});
$scope.setChild = findChildren;
}
});
angular.module("app").directive("directive", function() {
var template = "<div class=\"panel-body\">" +
"<table class=\"table table-hover\">" +
"<thead>" +
"<tr>" +
"<td>Name</td>" +
"</tr>" +
"</thead>" +
"<tbody>" +
"<tr ng-repeat=\"child in children\">" +
"<td>{{child.name}}</td>" +
"</tr>" +
"</tbody>" +
"</table>" +
"</div>";
return {
scope: {
child: "="
},
template: template,
link: function(scope, elm, attrs, ctrl) {
scope.$watch("child", function(newValue) {
if (newValue)
scope.children = newValue;
}, true);
}
};
});<!doctype html>
<html ng-app="app" ng-controller="ctrl">
<head>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
<div class="container">
<h1>parent list</h1>
<ul class="list-group">
<li class="list-group-item" ng-repeat="parent in parents">
{{parent.name}}
<button ng-click="getChild(parent.id)" class="btn btn-sm btn-success pull-right">click to get child</button>
</li>
</ul>
<hr />
<h1>child list</h1>
<directive child="setChild"></directive>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.min.js"></script>
</body>
</html>
答案 1 :(得分：1)
这是你的问题的另一个测试案例看看这个希望你得到一些有用的东西。 http://plnkr.co/edit/MMZXa7BViOQBEuH87Kyd?p=preview
var app = angular.module('TestApp', []);
app.controller('TestCtrl', ['$scope', function ($scope) {
$scope.clicked_parent = 0;
$scope.parents = [
{ id: '1', name: 'Test Parent 1', count: '2' },
{ id: '2', name: 'Test Parent 2', count: '3' },
{ id: '3', name: 'Test Parent 3', count: '1' }
];
$scope.children_list = [
{ id: '1', parent_id: '1', name: 'Test Child 1' },
{ id: '2', parent_id: '1', name: 'Test Child 2' },
{ id: '3', parent_id: '2', name: 'Test Child 3' },
{ id: '4', parent_id: '2', name: 'Test Child 4' },
{ id: '5', parent_id: '2', name: 'Test Child 5' },
{ id: '6', parent_id: '3', name: 'Test Child 6' }
];
$scope.isParentTagClicked = false;
$scope.set_parent_id = function(_id){
$scope.isParentTagClicked = !$scope.isParentTagClicked;
if ($scope.isParentTagClicked){
$scope.clicked_parent = _id;
}else{
$scope.clicked_parent = 0;
}
};
}]);
<!DOCTYPE html>
<html ng-app="TestApp">
<head>
<script src="//code.angularjs.org/1.2.20/angular.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="script.js"></script>
</head>
<body>
<div class="container" ng-controller="TestCtrl">
<div class="panel panel-default" ng-repeat="parent in parents">
<div class="panel-heading" ng-click="set_parent_id(parent.id)">{{parent.id}}</div>
<div class="panel-body" ng-repeat="child in children_list" ng-show="child.parent_id == clicked_parent" ng-if="child.parent_id == parent.id">
Panel content - {{child.parent_id}}
</div>
</div>
</div>
</body>
</html>