4.5 KiB
		
	
	
	
	
			
		
		
	
	
			4.5 KiB
		
	
	
	
	
| category | type | title | cover | 
|---|---|---|---|
| Components | Data Entry | Upload | https://gw.alipayobjects.com/zos/alicdn/QaeBt_ZMg/Upload.svg | 
Upload file by selecting or dragging.
When To Use
Uploading is the process of publishing information (web pages, text, pictures, video, etc.) to a remote server via a web page or upload tool.
- When you need to upload one or more files.
- When you need to show the process of uploading.
- When you need to upload files by dragging and dropping.
API
| Property | Description | Type | Default | Version | 
|---|---|---|---|---|
| accept | File types that can be accepted. See input accept Attribute | string | - | |
| action | Uploading URL | string|(file) => Promise | - | |
| method | http method of upload request | string | 'post' | 1.5.0 | 
| directory | support upload whole directory (caniuse) | boolean | false | |
| beforeUpload | Hook function which will be executed before uploading. Uploading will be stopped with falseor a rejected Promise returned. Warning:this function is not supported in IE9。 | (file, fileList) => `boolean | Promise` | - | 
| customRequest | override for the default xhr behavior allowing for additional customization and ability to implement your own XMLHttpRequest | Function | - | |
| data | Uploading params or function which can return uploading params. | object|function(file) | - | |
| disabled | disable upload button | boolean | false | |
| fileList | List of files that have been uploaded (controlled). Here is a common issue #2423 when using it | object[] | - | |
| headers | Set request headers, valid above IE10. | object | - | |
| listType | Built-in stylesheets, support for three types: text,pictureorpicture-card | string | 'text' | |
| multiple | Whether to support selected multiple file. IE10+supported. You can select multiple files with CTRL holding down while multiple is set to be true | boolean | false | |
| name | The name of uploading file | string | 'file' | |
| previewFile | Customize preview file logic | (file: File | Blob) => Promise<dataURL: string> | - | 1.5.0 | 
| showUploadList | Whether to show default upload list, could be an object to specify showPreviewIconandshowRemoveIconindividually | Boolean or { showPreviewIcon?: boolean, showRemoveIcon?: boolean } | true | |
| supportServerRender | Need to be turned on while the server side is rendering. | boolean | false | |
| withCredentials | ajax upload with cookie sent | boolean | false | |
| openFileDialogOnClick | click open file dialog | boolean | true | |
| remove | A callback function, will be executed when removing file button is clicked, remove event will be prevented when return value is falseor a Promise which resolve(false) or reject. | Function(file): `boolean | Promise` | - | 
| transformFile | Customize transform file before request | Function(file): `string | Blob | File | 
events
| Events Name | Description | Arguments | Version | 
|---|---|---|---|
| change | A callback function, can be executed when uploading state is changing. See change | Function | - | 
| preview | A callback function, will be executed when file link or preview icon is clicked. | Function(file) | - | 
| download | Click the method to download the file, pass the method to perform the method logic, do not pass the default jump to the new TAB. | Function(file): void | Jump to new TAB | 
| reject | A callback function, will be executed when drop files is not accept. | Function(fileList) | - | 
change
The function will be called when uploading is in progress, completed or failed
When uploading state change, it returns:
{
  file: { /* ... */ },
  fileList: [ /* ... */ ],
  event: { /* ... */ },
}
- 
fileFile object for the current operation.{ uid: 'uid', // unique identifier, negative is recommend, to prevent interference with internal generated id name: 'xx.png', // file name status: 'done', // options:uploading, done, error, removed response: '{"status": "success"}', // response from server linkProps: '{"download": "image"}', // additional html props of file link xhr: 'XMLHttpRequest{ ... }', // XMLHttpRequest Header }
- 
fileListcurrent list of files
- 
eventresponse from server, including uploading progress, supported by advanced browsers.