使用动态创建的控制angularjs上传文件 [英] File upload using dynamically created control angularjs
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问题描述
我想在特定条件下创建一个文件上传控件，然后上传文件。
i多次尝试但文件上传不能使用angularjs文件上传指令动态创建文件控件
我的尝试：
i want to create a file upload control on specific condition and then upload file.
i tried many times but file upload not working on dynamically created file control using angularjs file upload directive
What I have tried:
<html>
<head>
<script src = "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
</head>
<body ng-app = "myApp">
<div ng-controller="myCtrl">
<div ng-if="enabled">
<input type = "file" file-model = "myFile"/>
</div>
<button ng-click = "enabled = true">Enalbe</button>
<button ng-click = "uploadFile()">upload me</button>
</div>
<script>
var myApp = angular.module('myApp', []);
myApp.directive('fileModel', ['$parse', function ($parse) {
return {
restrict: 'A',
link: function(scope, element, attrs) {
var model = $parse(attrs.fileModel);
var modelSetter = model.assign;
element.bind('change', function(){
scope.$apply(function(){
modelSetter(scope, element[0].files[0]);
});
});
}
};
}]);
myApp.service('fileUpload', ['$http', function ($http) {
this.uploadFileToUrl = function(file, uploadUrl){
var fd = new FormData();
fd.append('file', file);
$http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
})
.success(function(){
})
.error(function(){
});
}
}]);
myApp.controller('myCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
$scope.uploadFile = function(){
var file = $scope.myFile;
debugger
console.log('file is ' );
console.dir(file);
var uploadUrl = "/fileUpload";
fileUpload.uploadFileToUrl(file, uploadUrl);
};
}]);
</script>
</body>
</html></html>
推荐答案
解析'，函数（
parse）{
return {
restrict：' A'，
链接： function （范围，元素，attrs）{
var model =
parse) { return { restrict: 'A', link: function(scope, element, attrs) { var model =
parse（attrs.fileModel）;
var modelSetter = model.assign;
element.bind（' change'， function （）{
scope。
parse(attrs.fileModel); var modelSetter = model.assign; element.bind('change', function(){ scope.
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