Question

我正在将Angular UI's typeahead与Web Api结合使用来加载搜索结果。 My Angular是版本1.2.2，bootstrap是3.1.0。我应该提一下，我也在使用打字稿。

当我在搜索框中输入内容时，我希望下拉菜单中包含从输入中删除的建议。当我检查控制台时，我看到了我的返回数据，问题是没有下拉菜单出现显示它。

这是我的HTML + angular指令：

<div class="input-group">
                <input type="text" class="form-control" placeholder="Search" ng-model="selected"
                       data-typeahead="searchResult as searchResult for searchResult in search($viewValue) | filter:$viewValue" >
                <div class="input-group-btn">
                    <button class="btn btn-default" type="submit" ng-click="search(Text)"><i class=" glyphicon glyphicon-search"></i></button>
                </div>
            </div>

这是我的控制器中的js函数：

$scope.search = function (criteria) {
                    controller.dataService.search($scope.employeeId, criteria, function (data) {
                        $scope.searchResult = data;
                });

这是我的数据服务中的搜索功能。

export interface ICommonDataService extends IBaseDataService {
    search(employeeId: string, criteria: string, successCallback: (data: SearchResult) => any);
}

dataservice.ts信息：

export class DataServicBase {
    public httpService: ng.IHttpService;
    public serviceBase = '/services/api';

    public static $inject = [
        '$http'
    ];

    constructor($http: any) {
        this.httpService = $http;
    }
}

    export class CommonDataService extends DataServicBase implements ICommonDataService {
    public serviceUrl = this.serviceBase + '/common';

    search(employeeId: string, criteria: string, successCallback: (data: SearchResult) => any) {
        this.httpService.get(this.serviceUrl + '/' + employeeId + '/search/' + criteria)
            .success(function (data) {
                successCallback(data);
            });
    }
}

这就是SearchResult的样子：

// Class
export class SearchResult {
    // Constructor
    constructor(
        public Employees: Employee[],
        public Filters: Employee[],
        public Projects: Project[]
        ) {
    }
}

我得到的错误是：

Error: matches is undefined
.link/getMatchesAsync/<@https://web.plank.local/Scripts/ui-bootstrap-tpls-0.10.0.js:3186
qFactory/defer/deferred.promise.then/wrappedCallback@https://web.plank.local/scripts/angular.js:10655
qFactory/defer/deferred.promise.then/wrappedCallback@https://web.plank.local/scripts/angular.js:10655
qFactory/ref/<.then/<@https://web.plank.local/scripts/angular.js:10741
$RootScopeProvider/this.$get</Scope.prototype.$eval@https://web.plank.local/scripts/angular.js:11634
$RootScopeProvider/this.$get</Scope.prototype.$digest@https://web.plank.local/scripts/angular.js:11479
$RootScopeProvider/this.$get</Scope.prototype.$apply@https://web.plank.local/scripts/angular.js:11740
textInputType/listener@https://web.plank.local/scripts/angular.js:15739
jQuery.event.dispatch@https://web.plank.local/scripts/jquery-2.1.0.js:4371
jQuery.event.add/elemData.handle@https://web.plank.local/scripts/jquery-2.1.0.js:4057
aM@https://cdn.qbaka.net/reporting.js:78

https://web.plank.local/scripts/angular.js
Line 9159

Answer 1

主要问题是您希望输入的数据列表不是列表（或未填充）。在我看来，控制器中的函数 search 应该返回数据，而它只是一个承诺。您可以尝试返回数据，为了使其更健壮，您可以添加 limitToFilter 。而不是将它放在共享的scope.searchResult中，而你的先行者根本没有把它取出。

不会出现Angular UI typeahead下拉列表

1 个答案: