我正在尝试根据从select
抓取的数据创建输入类型db/json file
。
我遇到的问题是我能够选择Make
部分,但是当我选择项目时,所有其他部分都没有得到更新。
请帮助我。
下面是我想要实现的截图:
HTML标记:
<select required ng-change="onCarChange(b,car)" ng-model="reportData.car.make" ng-options="bb.make for bb in cars" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.model" ng-change="onModelChange(b,model)" ng-options="cha.model.name for cha in b.selectedModels" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.year" ng-change="onYearChange(b,year)" ng-options="t for t in b.selectedYears" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.color" ng-change="onColorChange(b,color)" ng-options="t for t in b.selectedColors" class="form-control" >
<option value="">--Select--</option>
</select>
APP.JS控制器
$scope.onCarChange=function(b,car){
b.selectedModels=car.model;
}
$scope.onModelChange=function(b,model){
b.selectedModel=model;
b.selectedYears=model.years;
}
$scope.onYearChange=function(b,year){
b.selectedYear=year;
b.selectedColor=years.colors;
}
$scope.onColorChange=function(b,color){
b.selectedColor=color;
}
示例数据
$scope.cars = [
{
"model": [
{
"year": [
"2016",
"2015",
"2014"
],
"name": "CTS",
"color": [
{"id":1, "hexvalue":"#000", "description":"Black"},
{"id":2, "hexvalue":"#fff", "description":"White"},
{"id":3, "hexvalue":"#FAF0BE", "description":"Blonde"},
{"id":4, "hexvalue":"#0000FF", "description":"Blue"},
{"id":5, "hexvalue":"#808080", "description":"Grey"}
],
"id": 0
},
{
"year": [
"2016",
"2015",
"2014",
"2013",
"2012"
],
"name": "ATS",
"color": [
{"id":1, "hexvalue":"#000", "description":"Black"},
{"id":2, "hexvalue":"#fff", "description":"White"},
{"id":3, "hexvalue":"#FAF0BE", "description":"Blonde"},
{"id":4, "hexvalue":"#0000FF", "description":"Blue"},
{"id":5, "hexvalue":"#808080", "description":"Grey"}
],
"id": 1
},
{
"year": [
"2016",
"2015",
"2014"
],
"name": "XTS",
"color": [
{"id":1, "hexvalue":"#000", "description":"Black"},
{"id":2, "hexvalue":"#fff", "description":"White"},
{"id":3, "hexvalue":"#FAF0BE", "description":"Blonde"},
{"id":4, "hexvalue":"#0000FF", "description":"Blue"}
],
"id": 2
}
],
"make": "CADILLAC",
"picture": "http://placehold.it/32x32",
"index": 0,
"_id": "573bef46573891a64081d4d6"
}
}
]
答案 0 :(得分:0)
你指的b应该在$ scope里面,所以它可以在html上正确更新。使用$ scope.b insted of b,就像使用$ scope.cars一样。
如果您想要更干净的代码,请删除b并使用$ scope.selectedModel而不是$ scope.b.selectedModel,并使用ng-options selectedModel而不是b.selectedModel。
答案 1 :(得分:0)
请修改如下:
$scope.onCarChange=function(b,car){
$scope.b.selectedModels=car.model;
}
$scope.onModelChange=function(b,model){
$scope.b.selectedModel=model;
$scope.b.selectedYears=model.years;
}
$scope.onYearChange=function(b,year){
$scope.b.selectedYear=year;
$scope.b.selectedColor=years.colors;
}
$scope.onColorChange=function(b,color){
$scope.b.selectedColor=color;
}
还有一个建议,你不需要调用ng-change来反映相同的内容。 请考虑以下示例
Html代码: 第一:{{firstSelection}} 第二名:{{secondSelection}}
Js代码:
var myapp = angular.module('myapp', []);
myapp.controller('myCtrl', function ($scope) {
$scope.a = [1,2,3];
$scope.b = {
1:[1,2],
2:[2,4],
3:[3,6]
};
$scope.firstSelection = 2;
$scope.secondSelection = 4;
});
答案 2 :(得分:0)
以下是没有ng-change的问题的完整修改代码:
Html代码:
<div ng-app="myapp">
<fieldset ng-controller="myCtrl">
<select required ng-model="reportData.car.make" ng-options="item for item in c" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="selectedmodel" ng-options="source.name for source in sourceList" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="selectedYear" ng-options="item for item in selectedmodel.suboptions.yearList" class="form-control" >
<option value="">--Select--</option>
</select>
<select required ng-model="selectedColor" ng-options="t.description for t in selectedmodel.suboptions.color" class="form-control" >
<option value="">--Select--</option>
</select>
</fieldset>
</div>
JS代码:
var myapp = angular.module('myapp', []);
myapp.controller('myCtrl', function ($scope) {
$scope.c =['CADILLAC','CAR2'];
$scope.models =['CTS','ATS'];
$scope.sourceList = [
{
name: "CTS",
suboptions:
{ "yearList": [
"2016",
"2015",
"2014"
],
"color": [
{"id":1, "hexvalue":"#000", "description":"Black"},
{"id":2, "hexvalue":"#fff", "description":"White"},
{"id":3, "hexvalue":"#FAF0BE", "description":"Blonde"},
{"id":4, "hexvalue":"#0000FF", "description":"Blue"},
{"id":5, "hexvalue":"#808080", "description":"Grey"}
]}
},
{
name: "ATS",
suboptions:
{ "yearList": [
"2016",
"2015",
"2014"
],
"color": [
{"id":1, "hexvalue":"#000", "description":"Black"},
{"id":2, "hexvalue":"#fff", "description":"White"},
{"id":3, "hexvalue":"#FAF0BE", "description":"Blonde"},
{"id":4, "hexvalue":"#0000FF", "description":"Blue"},
{"id":5, "hexvalue":"#808080", "description":"Grey"}
]}
}
];
});
如果您使用上述代码,请告诉我您是否面临问题
答案 3 :(得分:0)
我从你的代码中弄出了这个小提琴。我使用ng-model值作为参数。
结帐这个小提琴:https://jsfiddle.net/vh16yx5s/
HTML代码
<div ng-app='test'>
<div ng-controller="testCtrl">
<select required ng-change="onCarChange(reportData.car)" ng-model="reportData.car" ng-options="bb.make for bb in cars" class="form-control">
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.model" ng-change="onModelChange(reportData.car.model)" ng-options="cha.name for cha in b.selectedModels" class="form-control">
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.year" ng-change="onYearChange(b,year)" ng-options="t for t in b.selectedYears" class="form-control">
<option value="">--Select--</option>
</select>
<select required ng-model="reportData.car.color" ng-change="onColorChange(b,color)" ng-options="t.description for t in b.selectedColors" class="form-control">
<option value="">--Select--</option>
</select>
</div>
</div>
AngularJS代码
var test = angular.module('test', []);
test.controller('testCtrl', function testCtrl($scope) {
console.log('initiated');
$scope.cars = [{
"model": [{
"year": ["2016","2015","2014"],
"name": "CTS",
"color": [{"id": 1, "hexvalue": "#000", "description": "Black" },
{"id": 2, "hexvalue": "#fff", "description": "White" },
{"id": 3, "hexvalue": "#FAF0BE", "description": "Blonde"},
{"id": 4, "hexvalue": "#0000FF", "description": "Blue"},
{"id": 5, "hexvalue": "#808080", "description": "Grey"}],
"id": 0
}, {
"year": [
"2016",
"2015",
"2014",
"2013",
"2012"
],
"name": "ATS",
"color": [{
"id": 1,
"hexvalue": "#000",
"description": "Black"
}, {
"id": 2,
"hexvalue": "#fff",
"description": "White"
}, {
"id": 3,
"hexvalue": "#FAF0BE",
"description": "Blonde"
}, {
"id": 4,
"hexvalue": "#0000FF",
"description": "Blue"
}, {
"id": 5,
"hexvalue": "#808080",
"description": "Grey"
}],
"id": 1
}, {
"year": [
"2016",
"2015",
"2014"
],
"name": "XTS",
"color": [{
"id": 1,
"hexvalue": "#000",
"description": "Black"
}, {
"id": 2,
"hexvalue": "#fff",
"description": "White"
}, {
"id": 3,
"hexvalue": "#FAF0BE",
"description": "Blonde"
}, {
"id": 4,
"hexvalue": "#0000FF",
"description": "Blue"
}],
"id": 2
}],
"make": "CADILLAC",
"picture": "http://placehold.it/32x32",
"index": 0,
"_id": "573bef46573891a64081d4d6"
}
];
$scope.b = {};
$scope.onCarChange = function(car) {
console.log(car);
$scope.b.selectedModels = car.model;
}
$scope.onModelChange = function(model) {
console.log(model);
$scope.b.selectedModel = model;
$scope.b.selectedYears = model.year;
$scope.b.selectedColors = model.color;
}
$scope.onYearChange = function(b, year) {
$scope.b.selectedYear = year;
$scope.b.selectedColor = years.colors;
}
$scope.onColorChange = function(b, color) {
$scope.b.selectedColor = color;
}
});