我有两个选择框,它使用ng选项和硬编码来获取数据。第二个选择框应显示基于第一个选择框中所选数据的数据。这就是plunker
https://plnkr.co/edit/r1S1e61H3RfH3uYGYTBP?p=preview
有人能帮我吗?
$scope.data = [{
cities: [{
id: 1,
title: 'Mysore'
}, {
id: 2,
title: 'Bangalore'
}, {
id: 3,
title: 'Delhi'
}, {
id: 4,
title: 'Mumbai'
}],
maps: [{
id: 1,
title: 'Zoo',
city_id: 1
}, {
id: 2,
title: 'Palace',
city_id: 1
}, {
id: 3,
title: 'Beach',
city_id: 4
}]
}];
您可以将所选城市的id从第一个下拉列表作为过滤器传递到第二个下拉列表,如下方
<select name="mapSelect" required="true" ng-options="map as map.title for map in data[0].maps | filter:{'city_id':citySelect.selectedOption.id}" ng-model="mapSelect.selectedOption"></select>