我在将动态创建的radiobutton组中的值设置为对象时遇到问题。 当ng-model中指定的对象不为null时,不检查单选按钮,单击任何单选按钮不会触发附加的$ watch。但是,如果ng-model中的对象在加载时为null,则$ watch似乎工作正常。现在,如果我将ng-model的值更改为字符串,它可以正常工作,问题是我需要整个对象。基本上每个模型都是一个问题,当在UI中更改问题时,整个模型对象将被发送到Web服务。
数据(设置值 - 不起作用)
{
"__type": "RadioQuestion:#MyProject.Model.Entities",
"Id": "ff3234ba-40fe-43e3-9457-ea5e3b5ae5a7",
"Question": "Question goes here",
"RangeMaxText": "Very likely",
"RangeMinText": "Not Likely",
"Title": "Question headline",
"DefaultValue": {
"Id": "id-for-no-value",
"Name": "Nej"
},
"PossibleValues": [
{
"Id": "id-for-yes-value",
"Name": "Yes"
},
{
"Id": "id-for-no-value",
"Name": "No"
}
],
"Question": "Hows it hanging?",
"Value": {
"Id": "id-for-no-value",
"Name": "Nej"
}
}
标记
<h4>{{question.Question}}</h4>
<label data-ng-repeat="pValue in question.PossibleValues" for="{{question.Id}}-{{pValue.Id}}">
<input
id="{{question.Id}}-{{pValue.Id}}"
name="radio-for-{{question.Id}}"
type="radio"
data-ng-value="pValue"
data-ng-model="question.Value" />
{{pValue.Name}}
</label>
数据(值为空 - 有效)
{
"__type": "RadioQuestion:#MyProject.Model.Entities",
"Id": "ff3234ba-40fe-43e3-9457-ea5e3b5ae5a7",
"Question": "Question goes here",
"RangeMaxText": "Very likely",
"RangeMinText": "Not Likely",
"Title": "Question headline",
"DefaultValue": {
"Id": "id-for-no-value",
"Name": "Nej"
},
"PossibleValues": [
{
"Id": "id-for-yes-value",
"Name": "Yes"
},
{
"Id": "id-for-no-value",
"Name": "No"
}
],
"Question": "Hows it hanging?",
"Value": null
}
这是监视功能:
this.$scope.questions.forEach((question) => {
this.$scope.$watch(
() => { return question; },
(newVal, oldVal) => this.updateQuestion(newVal, oldVal),
true
);
});
答案 0 :(得分:0)
根据我所知,动态生成的元素不是AngularJS 1.2中的一个选项。通常应该在1.3中工作。
答案 1 :(得分:0)
所以我发现我必须将Id属性用于Value对象的ng-value和ng-model才能使其工作
<label data-ng-repeat="pValue in question.PossibleValues" for="{{question.Id}}-{{pValue.Id}}">
<input class="field radio"
id="{{question.Id}}-{{pValue.Id}}"
name="radio-for-{{question.Id}}"
type="radio"
data-ng-value="pValue.Id"
data-ng-model="question.Value.Id" />
{{pValue.Name}}
</label>