[英]Change background color from input
我正在使用角度。 我有一個輸入看起來像:
<input class="form-control" type="text" ng-model="newBook.color">
基本上,當此更改時,我希望更改div的背景色。
我的控制器有幾行看起來像:
$scope.newBook = {};
$scope.newBook.color = "";
$scope.color = ->
return "background-color: " + $scope.newBook.color;
然后我要更改的div:
<div ng-style="{{color()}}"></div>
但是,我得到了錯誤: Error: [$parse:syntax] Syntax Error: Token ':' is an unexpected token at column 17 of the expression [background-color:]
我在這里為您提供了一個示例: https : //jsfiddle.net/chelogui/2h3hrj1x/
HTML:
<div ng-app="appTest">
<div ng-controller="contr as controller">
<input class="form-control" type="text" ng-model="controller.color" />
<div id="divTest" style="background-color: {{ controller.color }}"></div>
</div>
</div>
Javascript:
angular.module('appTest', [])
.controller('contr', [function () {
var self = this;
self.color = "red";
}]);
以CSS為例:
#divTest {
width: 100px;
height: 100px;
border: 1px solid black;
margin-top: 10px;
}
這是一個工作示例 :
您需要更改color
功能才能執行此操作:
angular.module('myApp',[])
.controller('myFirst',['$scope',function($scope){
$scope.newBook = {};
$scope.newBook.color = "red";
$scope.color = function(){
return "{'background-color' : '"+$scope.newBook.color+"'}";
}
}])
檢查一下:
angular.module('myApp',[]) .controller('myFirst',['$scope',function($scope){ $scope.newBook = {}; $scope.newBook.color = "red"; $scope.color = function(){ return "{'background-color' : '"+$scope.newBook.color+"'}"; } }])
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="myApp"> <div ng-controller="myFirst" ng-style="{{color()}}">Ajay</div></div>
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