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Retrieve filename

Posted by Nishithraj under Regular Expressions on 1/15/2010 | Views : 1493 | Status : [Member] | Replies : 6
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I have the following code to save a file

Response.ContentType = strFileName;
                    Response.AppendHeader("Content-Disposition", "attachment;filename=" + strFileName);

                    Response.TransmitFile(strUpdPath+strFileName);
                  
                    Response.End();


Here usercan specify any name at runtime while saving the file. I would like to retrive the filename after user saving the file.

Any options are available to get that??

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With regards
Nishithraj Narayanan

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Posted by: Vuyiswamb on: 1/15/2010 [Member] [MVP] [Administrator] NotApplicable

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but the strFileName is supposed to carry the File name , am i missing something ?


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Posted by: Nishithraj on: 1/15/2010 [Member] Bronze

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Vuyiswamb

Actually the name provided in the string strFileName will be displayed in the save dialog box by default to the user.

Later on he can chang it.

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With regards
Nishithraj Narayanan

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Posted by: Vuyiswamb on: 1/15/2010 [Member] [MVP] [Administrator] NotApplicable

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I Dont understand your problem. Can you explain better?

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Vuyiswa Maseko



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Posted by: Mehulthakkar1 on: 1/18/2010 [Member] Starter

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File name provided by you will be displayed to end user. but end user can change the file name from his side. you won't be able to retrieve that name once it will be changed and saved.

Thanks

Mehul Thakkar

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Posted by: Rtpharry on: 1/18/2010 [Member] [MVP] Bronze

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Hi,

You cannot detect what the filename the user saved the file with after your TransmitFile() call.

Also you may have a security vulnerability. Where have you get the value for "strUpdPath" from?

If that comes from a querystring or user entered data then you are exposing yourself to the user typing in ..\ to access areas outside of where you think you are giving them access such as ..\web.config - then they have your database passwords!

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Posted by: Rtpharry on: 1/18/2010 [Member] [MVP] Bronze

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Also I just wanted to suggest the follow method which is part of .net:

System.IO.Path.Combine()

It is specifically designed for joining multiple parts of paths together.

http://msdn.microsoft.com/en-us/library/fyy7a5kt.aspx

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