📅  最后修改于: 2023-12-03 15:38:53.799000             🧑  作者: Mango
在AngularJS中,可以使用ng-keypress指令来监听按键事件。因此,我们可以使用该指令来监听搜索框的Enter键事件,并将输入值传递到组件中。
以下是将输入值从搜索框传递到AngularJS组件的步骤:
<input type="text" ng-model="searchValue" ng-keypress="search($event)">
<input type="text" ng-model="searchValue" ng-keypress="search($event)">
app.controller('MyCtrl', ['$scope', function($scope) {
$scope.search = function(event) {
if (event.keyCode === 13) { // keyCode 13 为Enter键
$scope.$broadcast('searchEvent', $scope.searchValue);
}
};
}]);
<div ng-controller="MyComponentCtrl" ng-if="searchValue">
{{ searchValue }}
</div>
app.controller('MyComponentCtrl', ['$scope', function($scope) {
$scope.$on('searchEvent', function(event, args) {
$scope.searchValue = args;
});
}]);
以下是将输入值从搜索框传递到AngularJS组件的完整示例:
<!DOCTYPE html>
<html ng-app="myApp">
<head>
<meta charset="utf-8">
<title>AngularJS Search Input Example</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
</head>
<body>
<h1>AngularJS Search Input Example</h1>
<div ng-controller="MyCtrl">
<input type="text" ng-model="searchValue" ng-keypress="search($event)">
<div ng-controller="MyComponentCtrl" ng-if="searchValue">
{{ searchValue }}
</div>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('MyCtrl', ['$scope', function($scope) {
$scope.search = function(event) {
if (event.keyCode === 13) {
$scope.$broadcast('searchEvent', $scope.searchValue);
}
};
}]);
app.controller('MyComponentCtrl', ['$scope', function($scope) {
$scope.$on('searchEvent', function(event, args) {
$scope.searchValue = args;
});
}]);
</script>
</body>
</html>
在这个示例中,我们创建了一个搜索框,输入值会在按下Enter键后被传递到组件中。组件会在输入值变化时更新其状态,并将其显示在页面上。