Angularjs md自动完成,错误:无法读取属性';然后';未定义的
我正在尝试使用mdautocomplete指令和MVC实现autocomplete特性 下面是HTML代码片段Angularjs md自动完成,错误:无法读取属性';然后';未定义的,angularjs,autocomplete,angular-material,Angularjs,Autocomplete,Angular Material,我正在尝试使用mdautocomplete指令和MVC实现autocomplete特性 下面是HTML代码片段 <div ng-controller="BookTicketController as ctrl" layout="column" ng-cloak> <md-content class="md-padding"> <form ng-submit="$event.preventDefault()"> <md-autoco
<div ng-controller="BookTicketController as ctrl" layout="column" ng-cloak>
<md-content class="md-padding">
<form ng-submit="$event.preventDefault()">
<md-autocomplete ng-disabled="ctrl.isDisabled" md-selected-item="ctrl.selectedItem" md-search-text-change="ctrl.searchTextChange(ctrl.searchText)" md-search-text="ctrl.searchText" md-selected-item-change="ctrl.selectedItemChange(item)" md-items="item in ctrl.querySearch(ctrl.searchText)"
md-item-text="item.display" md-min-length="0" placeholder="Search for stations here!">
<md-item-template>
<span md-highlight-text="ctrl.searchText" md-highlight-flags="^i">{{item.display}}</span>
</md-item-template>
<md-not-found>
No matches found
</md-not-found>
</md-autocomplete>
</form>
</md-content>
</div>
我在声明'angular.js:14525 TypeError:Cannot read property'then'of undefined'时出错
你们谁能帮我解决这个问题吗?你们能
console.log(self.stations)
并告诉我是什么吗?(4)[对象,对象,对象,对象,对象]0:对象显示:“班加罗尔”值:“班加罗尔”原型:对象1:对象2:对象显示:“海得拉巴”值:“海得拉巴”原型:对象3:对象显示:“海得拉巴”值:“hyderabad”proto:Object length:4 proto:Array(0)在得到响应之前禁用自动完成,因为我认为您的api响应需要时间。我得到了预期的站点列表。您在自动完成中没有得到任何建议吗?您能控制台.log(self.stations)
并告诉我它是什么吗?(4)[对象,对象,对象,对象,对象]0:对象显示:“班加罗尔”值:“班加罗尔”原型:对象1:对象2:对象显示:“海得拉巴”值:“海得拉巴”原型:对象3:对象显示:“海得拉巴”值:“海得拉巴”原型:对象长度:4原型:数组(0)禁用“自动完成”,直到收到响应,因为我认为您的api响应需要时间。我正在按预期获得电台列表。您在“自动完成”中没有收到任何建议吗?
(function() {
'use strict';
angular
.module('myApp', ['ngMaterial'])
.controller('BookTicketController', BookTicketController);
function BookTicketController($http, $timeout, $q, $log, $scope) {
var self = this;
self.simulateQuery = false;
self.isDisabled = false;
// list of `state` value/display objects
self.stations = loadAll($http);
self.querySearch = querySearch;
self.selectedItemChange = selectedItemChange;
self.searchTextChange = searchTextChange;
//self.newState = newState;
function querySearch(query) {
var results = query ? self.stations.filter(createFilterFor(query)) : self.stations,
deferred;
if (!query) {
return;
}
if (self.simulateQuery) {
deferred = $q.defer();
$timeout(function() {
deferred.resolve(results);
}, Math.random() * 1000, false);
return deferred.promise;
} else {
return results;
}
}
function searchTextChange(text) {
$log.info('Text changed to ' + text);
}
function selectedItemChange(item) {
$log.info('Item changed to ' + JSON.stringify(item));
}
function loadAll($http) {
var allStations = [];
var result = [];
$http.get('/Train/GetAllStations')
.then(function(response) {
allStations = response.data;
angular.forEach(allStations, function(station, key) {
result.push({
value: station.StationName.toLowerCase(),
display: station.StationName
});
})
});
return result;
}
function createFilterFor(query) {
var lowercaseQuery = angular.lowercase(query);
return function filterFn(state) {
return (state.value.indexOf(lowercaseQuery) === 0);
};
}
}
})();