笨蛋：http://plnkr.co/edit/wURNg8ByPYbEuQSL4xwg
示例.js：
angular.module('plunker', ['ui.bootstrap']);
var ModalDemoCtrl = function ($scope, $modal) {
$scope.open = function () {
var modalInstance = $modal.open({
templateUrl: 'modal.html',
controller: 'ModalInstanceCtrl'
});
};
};
var ModalInstanceCtrl = function ($scope, $modalInstance) {
$scope.ok = function () {
alert($scope.text);
};
$scope.cancel = function () {
$modalInstance.dismiss('cancel');
};
};
index.html：
<!doctype html>
<html ng-app="plunker">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.js"></script>
<script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.6.0.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">
</head>
<body>
<div ng-controller="ModalDemoCtrl">
<button class="btn" ng-click="open()">Open me!</button>
<div ng-show="selected">Selection from a modal: {{ selected }}</div>
</div>
</body>
</html>
modal.html：
<div class="modal-header">
<h3>I'm a modal!</h3>
</div>
<textarea ng-model="text"></textarea>
<div class="modal-footer">
<button class="btn btn-primary" ng-click="ok()">OK</button>
<button class="btn btn-warning" ng-click="cancel()">Cancel</button>
</div>
为什么我无法获取 ModalInstanceCtrl 中定义的 $scope.text，即使我可以使用 $scope.ok 和 $scope.cancel？
看起来像是范围问题。我让它像这样工作：
var ModalInstanceCtrl = function ($scope, $modalInstance) {
$scope.input = {};
$scope.ok = function () {
alert($scope.input.abc);
};
$scope.cancel = function () {
$modalInstance.dismiss('cancel');
};
};
HTML：
<textarea ng-model="input.abc"></textarea>
2014 年 11 月更新：问题已通过 angular-ui-bootstrap 0.12.0 修复 - 嵌入范围与控制器的范围合并。无需执行任何操作。只要留下来：
<textarea ng-model="text"></textarea>
0.12.0之前：
Angular-UI 模态使用嵌入来附加模态内容，这意味着在模态中创建的任何新范围条目都将在子范围中创建。
您应该使用继承并初始化父级中的空
text$scope<textarea ng-model="$parent.text"></textarea>
让我尝试解释一下原因。 ui-bootstrap 模态源代码：
.directive('modalWindow', ['$modalStack', '$timeout', function ($modalStack, $timeout) {
return {
restrict: 'EA',
scope: {
index: '@',
animate: '='
},
replace: true,
transclude: true,
templateUrl: function(tElement, tAttrs) {
return tAttrs.templateUrl || 'template/modal/window.html';
},
和模板源代码 - window.html:
<div tabindex="-1" role="dialog" class="modal fade" ng-class="{in: animate}" ng-style="{'z-index': 1050 + index*10, display: 'block'}" ng-click="close($event)">
<div class="modal-dialog" ng-class="{'modal-sm': size == 'sm', 'modal-lg': size == 'lg'}"><div class="modal-content" modal-transclude></div></div>
有一个指令modal-transclude，你的对话框内容会插入其中，它的源代码：
.directive('modalTransclude', function () {
return {
link: function($scope, $element, $attrs, controller, $transclude) {
$transclude($scope.$parent, function(clone) {
$element.empty();
$element.append(clone);
});
}
};
}）
现在看一下 $compile 的官方文档：
Transclusion Functions
When a directive requests transclusion, the compiler extracts its contents and provides
a transclusion function to the directive's link function and controller.
This transclusion function is a special linking function that will return the compiled
contents linked to a **new transclusion scope.**
transinclude 将创建一个新的控制器范围