AngularJs: How to check for changes in file input fields? <input type="file" onchange="angular.element(this).scope().fileNameChanged()">…

问题:最近发现一个奇怪的bug, 那就是在上传图片需要采用input type=file来进行文件选择.由于为了适应美工的UI图,所以是把选择文件的input框隐藏了.然后通过另外一个按钮的点击事件来触发input的选择事件.代码如下: <div style="width:120px;height:120px"> <img src="/image/uploadfile.png" style="width:100%;height:100%&…

由jQuery绑定类型为file的input控件的change事件,发现只能被触发一次,修改方法 --> 原始代码: $input.change(function() { // something }); 修正后代码: $input.live('change', function() { // something });…

在项目过程中遇到的需要上传本地文件,file的原始控件不太美观,但是这个控件和button有点不太一样, 改变这个样式的思路就是在控件外面套一层链接,然后把file控件的透明度设置为0(透明).样式只需要对外面那层进行操作就行. html代码: <td style="text-align: left;"> <a href="javascript:;" class="file">选择文件 <input type=&qu…

问题描述 在最近的项目开发中遇到了这样的一个问题,当我上传了一个文件时,我将获取到的文件名清空后,却无法再次上传相同的文件 <template> <div class="hello"> <input type="button" value="上传文件" name="" id="" @click="updata"> <input type=&quo…

Html <input id="file" type="file" accept=".map" onchange="upload()" /> JS document.getElementById('file').value = null; // document.getElementById('file').onchange = function () { // alert(this.value); // this…

Each component has its own ChangeDetectorRef, and we can inject ChangeDetectorRef into constructor: export class ChildComponent implements OnInit { constructor( private cdr: ChangeDetectorRef ) For example if you have a huge list can be updated in re…

js解决办法 HTML:<input id="file",type="file" onchange="upload()" /> JS:document.getElementById('file').value = null; vue逻辑 <input ref="referenceUpload" @change="referenceUpload" type="file" …

The upload class will be used in the service layer. Notice it has a constructor for file attribute, which has a type of File. This will allows us to initialize new uploads with a JavaScript File object. You will see why this is important in the next…

Working with editors/IDEs supporting “safe write” Note that many editors support “safe write” feature and have it enabled by default, which makes dev server unable to watch files correctly. “Safe write” means changes are not written directly to origi…