在自定义指令中从 ngModel 获取值 [英] Get value from ngModel in custom directive
本文介绍了在自定义指令中从 ngModel 获取值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图通过指令从我的输入中获取 ngModel 的值，但我无法获取该值.
I'm trying to get the value from ngModel from my input through a directive, but I can't get the value.
这是我的代码:
angular
.module('myapp')
.directive('infoVal', myVal);
function myVal() {
return {
link: function(scope, element, attrs, ctrl){
console.log("Ng Model value");
console.log(attrs.ngModel.$viewValue);
}
}
};
HTML 输入:
<input type="text"
class="form-control"
name="info"
ng-model="formCtrl.infor"
info-val>
推荐答案
通过此示例，您可以获得第一个 ngModel 值以及 onChange 值
By this sample you can get the first ngModel Value and also onChange Values
var app = angular.module("app", []);
app.controller("controller", function ($scope) {
$scope.test = "hi";
});
app.directive("directiveName", function () {
return {
restrict: "A",
replace: true,
scope: {
directiveName: "="
},
require: "^ngModel",
link: function (scope, element, attr, ngModel) {
var firstValue = scope.directiveName;
console.log("firstValue", firstValue);
element.on("input propertychange", function () {
console.log("onchange", ngModel.$viewValue);
});
}
}
})<!DOCTYPE html>
<html ng-app="app" ng-controller="controller as ctrl">
<head>
<title></title>
</head>
<body>
<input type="text" ng-model="test" directive-name="test" />
{{test}}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
</body>
</html>这篇关于在自定义指令中从 ngModel 获取值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
