本文将带您了解关于AngularJS-自动聚焦输入并显示typeahead下拉菜单-ui.bootstrap.typeahead的新内容，同时我们还将为您解释angularjs下拉框联动的相关知识，另
本文将带您了解关于Angular JS-自动聚焦输入并显示typeahead下拉菜单-ui.bootstrap.typeahead的新内容，同时我们还将为您解释angularjs下拉框联动的相关知识，另外，我们还将为您提供关于angular – ng-bootstrap typeahead TypeError：Object(…)不是函数、angular – 如何在Reactive Form上使用ng-bootstrap Typeahead组件、angular-ui-bootstrap – 如何将Angular UI Typeahead对齐到右侧、Angularjs bootstrap typeahead无效：错误：[filter：notarray]的实用信息。
本文目录一览：- Angular JS-自动聚焦输入并显示typeahead下拉菜单-ui.bootstrap.typeahead（angularjs下拉框联动）
- angular – ng-bootstrap typeahead TypeError：Object(…)不是函数
- angular – 如何在Reactive Form上使用ng-bootstrap Typeahead组件
- angular-ui-bootstrap – 如何将Angular UI Typeahead对齐到右侧
- Angularjs bootstrap typeahead无效：错误：[filter：notarray]
Angular JS-自动聚焦输入并显示typeahead下拉菜单-ui.bootstrap.typeahead（angularjs下拉框联动）
我正在使用Angular JS-ui.bootstrap.typeahead：
我想单击一个按钮并聚焦于一个输入字段，并自动显示预先输入建议下拉列表。我有一条指令，当单击按钮时，该指令会自动聚焦输入字段。如何自动显示下拉菜单，以便用户可以使用向下箭头或单击来快速选择用户？
我用可编辑的ui-bootstrap JS文件创建了一个Plunker：
http://plnkr.co/edit/Z79LY0OYlwFc3wirjxol?p=preview
这是我的完整脚本：
<!doctype html>
<html ng-app="plunker">
<head>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.2/angular.js"></script>
<script src="ui-bootstrap-tpls-0.10.0.js"></script>
</head>
<body>
<script>
angular.module('plunker',['ui.bootstrap'])
.directive('focusMe',function($timeout,$parse) {
return {
//scope: true,// optionally create a child scope
link: function(scope,element,attrs) {
var model = $parse(attrs.focusMe);
scope.$watch(model,function(value) {
if(value === true) {
$timeout(function() {
element[0].focus();
});
}
});
}
};
});
function TypeaheadCtrl($scope,$http) {
$scope.selected = undefined;
$scope.states = ['Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','Florida','Georgia','Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan','Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York','North Dakota','North Carolina','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota','Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming'];
$scope.opened = false;
$scope.open = function() {
$scope.opened = true;
}
$scope.close = function() {
$scope.opened = false;
}
}
</script>
<divng-controller="TypeaheadCtrl">
<h4>How can I open the typeahead dropdown automatically when button is pressed?</h4>
<p>I have a directive that automatically focuses on the field but I can't seem to automatically show the typeahead. Even adding down arrow key click support would be great.
<br/><br/>
<buttonng-show="!opened" ng-click="open()">Open Input and show typeahead!</button>
<buttonng-show="opened" ng-click="close()">Close Input</button>
<br/><br/>
<input type="text"
focus-me="opened"
ng-show="opened"
ng-model="selected"
typeahead="state for state in states | filter:$viewValue | limitTo:8">
<br/>
<pre ng-show="opened">Model: {{selected | json}}</pre>
</div>
</body>
</html>
angular – ng-bootstrap typeahead TypeError：Object(…)不是函数
但我不断收到以下错误：
ERROR TypeError: Object(...) is not a function at new NgbTypeahead (typeahead.js:52) at createClass (core.js:12449) at createDirectiveInstance (core.js:12284) at createViewNodes (core.js:13742) at callViewAction (core.js:14176) at execComponentViewsAction (core.js:14085) at createViewNodes (core.js:13770) at callViewAction (core.js:14176) at execComponentViewsAction (core.js:14085) at createViewNodes (core.js:13770)
并且：
ERROR TypeError: Cannot read property 'instance' of undefined at nodeValue (core.js:11753) at Object.eval [as handleEvent] (NgbdTypeaheadBasic.html:9) at handleEvent (core.js:13547) at callWithDebugContext (core.js:15056) at Object.debugHandleEvent [as handleEvent] (core.js:14643) at dispatchEvent (core.js:9962) at eval (core.js:10587) at HTMLDocument.eval (platform-browser.js:2628) at ZoneDelegate.invokeTask (zone.js:421) at Object.onInvokeTask (core.js:4740)
我从网站link复制了Simple Typeahead代码.
我的package.json文件：
{
“名称”：“测试型提前”,
“版本”：“0.0.0”,
“执照”：“麻省理工学院”,
“脚本”：{
“ng”：“ng”,
“开始”：“ng serve”,
“build”：“ng build –prod”,
“测试”：“ng测试”,
“lint”：“ng lint”,
“e2e”：“ng e2e”
},
“私人”：是的,
“依赖”：{
“@ angular / animations”：“^ 5.2.0”,
“@ angular / common”：“^ 5.2.0”,
“@ angular / compiler”：“^ 5.2.0”,
“@ angular / core”：“^ 5.2.0”,
“@ angular / forms”：“^ 5.2.0”,
“@ angular / http”：“^ 5.2.0”,
“@ angular / platform-browser”：“^ 5.2.0”,
“@ angular / platform-browser-dynamic”：“^ 5.2.0”,
“@ angular / router”：“^ 5.2.0”,
“@ ng-bootstrap / ng-bootstrap”：“^ 2.0.0-alpha.0”,
“bootstrap”：“^ 4.1.0”,
“core-js”：“^ 2.4.1”,
“rxjs”：“^ 5.5.6”,
“zone.js”：“^ 0.8.19”
},
“devDependencies”：{
“@ angular / cli”：“~1.7.3”,
“@ angular / compiler-cli”：“^ 5.2.0”,
“@ angular / language-service”：“^ 5.2.0”,
“@ types / jasmine”：“~2.8.3”,
“@ types / jasminewd2”：“~2.0.2”,
“@ types / node”：“~6.0.60”,
“codelyzer”：“^ 4.0.1”,
“茉莉核心”：“~2.8.0”,
“jasmine-spec-reporter”：“~4.2.1”,
“业力”：“~2.0.0”,
“karma-chrome-launcher”：“~2.2.0”,
“karma-coverage-istanbul-reporter”：“^ 1.2.1”,
“karma-jasmine”：“~1.1.0”,
“karma-jasmine-html-reporter”：“^ 0.2.2”,
“量角器”：“~5.1.2”,
“ts-node”：“~4.1.0”,
“tslint”：“~5.9.1”,
“打字稿”：“~2.5.3”
}
}
到目前为止我尝试了什么：
>用npm重新安装node_modules – 没有帮助
>使用角度CLI开始了一个全新的项目并在那里试用了代码 – 没有帮助.
任何帮助是极大的赞赏！
解决方法
所以package.json文件：
`dependencies .... "@ng-bootstrap/ng-bootstrap": "^1.1.1",.... dependencies`
感谢JB Nizet和Niladri的快速解答
编辑：另外,正如@Niladri在评论中所说,你需要为你想要使用的模块使用forRoot().这是针对Angular 5的official documentation of version 1.1,这里说的是,但更新版本的角度曲线的新文档并未说明,因为它已被更改.所以记住这一点！
angular – 如何在Reactive Form上使用ng-bootstrap Typeahead组件
目前,我有类似的东西：
<input type="text" aria-describedby="cityValid"id="inputCity" [formControl]="userForm.controls.city" [ngbTypeahead]="search">
使用与示例代码几乎相同的搜索功能,但它会因以下堆栈跟踪而失败
error_handler.js:53 TypeError: Cannot read property 'subscribe' of undefined at NgbTypeahead._subscribetoUserInput (typeahead.js:158) at NgbTypeahead.ngOnInit (typeahead.js:52) at DebugAppView._View_UserFormComponent0.detectChangesInternal (UserFormComponent.ngfactory.js:1093) at DebugAppView.AppView.detectChanges (view.js:271) at DebugAppView.detectChanges (view.js:376) at DebugAppView.AppView.detectViewChildrenChanges (view.js:297) at DebugAppView._View_ExecutionFormComponent3.detectChangesInternal (ExecutionFormComponent.ngfactory.js:551) at DebugAppView.AppView.detectChanges (view.js:271) at DebugAppView.detectChanges (view.js:376) at DebugAppView.AppView.detectContentChildrenChanges (view.js:289)
我究竟做错了什么？如果有一个关于如何在Reactive Forms上使用ng-bootstrap组件的一般指南会很棒,因为该示例基于基于模板的示例.
谢谢！
解决方法
我有
searchCity (text$: Observable<string>) {
text$
.debounceTime(200)
.distinctUntilChanged()
.map(term => term.length < 2 ? []
: cities.filter(v => new RegExp(term,'gi').test(v)).splice(0,10));
}
在text $fixed之前添加一个return语句.
angular-ui-bootstrap – 如何将Angular UI Typeahead对齐到右侧
这在angular-ui-bootstrap网站中提到：
The $uibPosition service provides a set of DOM utilities used internally to absolute-position an element in relation to another element (tooltips,popovers,typeaheads etc…).
我无法理解.有什么例子吗？
解决方法
.rtl .dropdown-menu{
float:right;
position:inherit;
}
![Angularjs bootstrap typeahead无效：错误：[filter：notarray]](http://www.gvkun.com/zb_users/upload/2025/04/ad0beac4-3a97-4f42-b6a0-7b75164f077b1743651289668.jpg "Angularjs bootstrap typeahead无效：错误：[filter：notarray]")
Angularjs bootstrap typeahead无效：错误：[filter：notarray]
$scope.getlist = function getlistofNames(name) {
return $http({
method: 'GET',url: '/v1/'+name,data: ""
}).then(function(response){
if(response.data.statusMessage !== 'SUCCESS'){
response.errorMessage = "Error while processing request. Please retry."
return response;
}
else {
return response.data.payload;
}
},function(response){
response.errorMessage = "Error while processing request"
return response;
}
);
}
response.data.payload是一个对象数组,它已成功获取但我收到此错误
错误：[filter：notarray] http://errors.angularjs.org/1.4.5/filter/notarray？
注意：我使用的是角度1.4.5和Bootstrap v3.1.1
解决方法
<input [...] typeahead="item in getItems($viewValue) | filter: $viewValue">
为什么它不起作用：
异步提取项目数组时会发生此问题.在你的情况下,getItems函数被称为getlistofNames,由于调用了$http,你的项目确实是异步获取的.因此,在发生错误时,getlistofNames()仍然是未解析的promise对象,而不是名称数组.
你怎么能做这个工作：
从模板中删除过滤器.您应该在getItems中返回之前过滤该数组.理想情况下,您希望在服务器端进行过滤.实际上,服务器接收用户键入的子字符串(这是$viewValue参数),因此它具有过滤数组的所有数据.这样可以防止返回所有元素并缩短响应时间.
或者,您可以在承诺的回调中过滤客户端：
$scope.getList = function getlistofNames(name) {
return $http(...}).then(
function(response){
// filter response.data.payload according to
// the 'name' ($viewValue) substring entered by the user
return filteredArray; // <- no need to pipe a filter in the template anymore
}
);
};
今天关于Angular JS-自动聚焦输入并显示typeahead下拉菜单-ui.bootstrap.typeahead和angularjs下拉框联动的介绍到此结束，谢谢您的阅读，有关angular – ng-bootstrap typeahead TypeError：Object(…)不是函数、angular – 如何在Reactive Form上使用ng-bootstrap Typeahead组件、angular-ui-bootstrap – 如何将Angular UI Typeahead对齐到右侧、Angularjs bootstrap typeahead无效：错误：[filter：notarray]等更多相关知识的信息可以在本站进行查询。
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