如何识别文件的类型和大小 [英] how to identify the file type and size of a file

问题描述

嗨...
我已经上传了文件...
我想将有关文件的那些信息存储在我的数据库中....
喜欢
文件名，
文件类型，
扩展名，
尺寸，
文件路径.
我也想将其存储在数据库中...
我知道要识别文件名:

hi...
i have uploaded a file...
i want to store those info about file in my database....
like
file name,
file type,
extension,
size,
file path.
and also i want to store it in database...
i know to identify the filename:

fname.InnerHtml=MyFile.PostedFile.FileName

尺寸:

for size:

clength.InnerHtml=MyFile.PostedFile.ContentLength...

推荐答案

使用FileInfo类获取上传文件的详细信息.

检查此链接
http://msdn.microsoft.com/en-us/library/system.io. fileinfo.aspx [^ ]

use FileInfo Class to get the upload file details.

check this link
http://msdn.microsoft.com/en-us/library/system.io.fileinfo.aspx[^]

使用HttpPostedFile和以下属性:
ContentLength:上载文件的大小，以字节为单位
ContentType:上传文件的类型，即"image/gif"
FileName:客户端系统上载文件的完整路径，

或通过以下网址获取所有内容:使用ASP.NET上传文件 [

use the HttpPostedFile and following properties :
ContentLength: size of uploaded file in bytes
ContentType: type of uploaded file, i.e. "image/gif"
FileName: full path to uploaded file on client''s system,

or get everything at :File Upload with ASP.NET[^]

使用

FileInfo fi = new FileInfo(filepath);
            fi.Extension;

而且U可以找到更多解决方案，可以解决您的需求

and U can find many more it will solve ur requirement

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