ext 多文件上传控件 Ext.ux.UploadDialog 使用中的问题

Ext.ux.UploadDialog 像ext一样展现给用户震撼的界面：

如图：上传之前

上传过程中：

强悍吧。怎样使用呢。？

自己去搜索 Ext.ux.UploadDialog.包下载

使用是出来导入必要的ext包还需要

<link rel="stylesheet" href="Ext.ux.UploadDialog/UploadDialog/css/Ext.ux.UploadDialog.css" />
<script type="text/javascript" src="Ext.ux.UploadDialog/Ext.ux.UploadDialog.packed.js"></script>

使用很简单 弄个onclick事件 核心代码如下

1. functioninsertImages()
2. {
3. dialog=newExt.ux.UploadDialog.Dialog({
4. title:'文件上传__上传过程中关闭窗口，不影响上传_wayfoon',
5. url:wayfoon.MMS.DataPage+'/xxx.action?action=xxx',
7. width:450,
8. height:300,
9. minWidth:450,
10. minHeight:300,
11. draggable:true,
12. resizable:true,
13. //autoCreate:true,
14. constraintoviewport:true,
15. permitted_extensions:['JPG','jpg','jpeg','JPEG','GIF','gif','bmp','BMP'],
16. modal:true,
17. //post_var_name:'mms',
18. reset_on_hide:false,
19. allow_close_on_upload:true,//关闭上传窗口是否仍然上传文件
20. upload_autostart:false//是否自动上传文件
21. });
23. dialog.show();//'show-button'
24. dialog.on('uploadsuccess',onUploadSuccess);
26. }

提交时，默认提交的文件名是file 你可以修改 post_var_name: 'myfile',

dialog 有很多事件，如下英文。例子中使用了uploadsuccess事件

• filetest - fires before file is added into the queue, parameters:
  dialog - reference to dialog
  filename - file name
  If handler returns false then file will not be queued.
• fileadd - fires when file is added into the queue, parameters:
  dialog - reference to dialog
  filename - file name
• fileremove - fires when file is removed from the queue, parameters:
  dialog - reference to dialog
  filename - file name
  record - file record
• resetqueue - fires when upload queue is resetted, parameters:
  dialog - reference to dialog
• beforefileuploadstart - fires when file as about to start uploading:
  dialog - reference to dialog
  filename - uploaded file name
  record - file record
  If handler returns false then file upload will be canceled.
• fileuploadstart - fires when file has started uploading:
  dialog - reference to dialog
  filename - uploaded file name
  record - file record
• uploadsuccess - fires when file is successfuly uploaded, parameters:
  dialog - reference to dialog
  filename - uploaded file name
  data - js-object builded from json-data returned from upload handler response.
  record - file record
• uploaderror - fires when file upload error occured, parameters:
  dialog - reference to dialog
  filename - uploaded file name
  data - js-object builded from json-data returned from upload handler response.
  record - file record
• uploadfailed - fires when file upload failed, parameters:
  dialog - reference to dialog
  filename - failed file name
  record - file record
• uploadcanceled - fires when file upload canceled, parameters:
  dialog - reference to dialog
  filename - failed file name
  record - file record
• uploadstart - fires when upload process starts, parameters:
  dialog - reference to dialog
• uploadstop - fires when upload process stops, parameters:
  dialog - reference to dialog
• uploadcomplete - fires when upload process complete (no files to upload left), parameters:
  dialog - reference to dialog

注意该多文件上传，每次其实只上传了一个文件，多个文件是分多次上传的。

看到了有很多后台代码采用了多文件 循环读取，只是没有必要的，我们只要当一个文件处理就可以了。

网上很多例子，也只能称为例子，离应用还有点距离，应用的时候，还需要灵活点

比如我们需要传入自己的参数，网上很难找到，其实我们可以在事件中来改变 提交的参数，

采用属性 base_params:{ hehe: "wayfoon" } 来实现,

function onUploadSuccess(dialog, filename, resp_data, record)

{

你可以改变dialog的某些值

resp_data 是返回的json数据

}

评论

1 楼 风雨故都 2011-03-29  

liuming