如何使用JavaScript在客户端获取上传的文件大小? [英] How to get uploaded file size at client end using javascript?

问题描述

如何使用javascript在客户端获取上传的文件大小?

我正在使用FileUpload控件，我想在客户端获取文件大小.
如何使用javascript获取尺寸?

我已经使用过下面的代码，但不能在我的身边使用b''coz我没有使用
ActiveX对象.

How to get uploaded file size at client end using javascript?

I am using FileUpload control, I want to get the file size at client end.
how can i get the size using javascript?

I have already used below code but do not work at my side b''coz i am not using
ActiveX object.

Var fso = new ActiveXObject("Scripting.FileSystemObject");
    fileObj = fso.GetFile(sender.value);
    fName = fileObj.Name; //file's name
    fType = fileObj.Type; //file's type
    fSize = fileObj.Size; //size in bytes

这段代码对我也没有用

also this code is not usefull for me

fileupload.file[0].size

推荐答案

使用Asp.net ajax AsyncFileUpload控件.
AsyncFileUpload控件-Ajax控件工具包中的新控件
http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/AsyncFileUpload/AsyncFileUpload.aspx

Use Asp.net ajax AsyncFileUpload control.
AsyncFileUpload Control - New Control in Ajax Control ToolKit
http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/AsyncFileUpload/AsyncFileUpload.aspx

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