Asp.Net with C#: How to download file from Server

Manath Pathana

Hi dear,

I have a problem with asp page.
I want to download file from server that I uploaded.
But i can not do, If all can do please tell me by send
source for me too.

thank advance.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jaish Mathews16y ago
Accepted answer
Below a sample code to down load a text file with following criteria
1. File is keeping in side "Data" folder, which is directly under root folder of the website.
2. For different file types, line "Response.ContentType = "application/txt";", need appropriate ContentType value.
string file = Server.MapPath(@"Data\Info.txt");
if (File.Exists(file))
{
FileInfo fInfo = new FileInfo(file);
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" + fInfo.Name);
Response.AddHeader("Content-Length", fInfo.Length.ToString());
Response.ContentType = "application/txt";
Response.WriteFile(fInfo.FullName);
Response.End();
}
Jaish Mathews16y ago
But why can't use this logic in a commom Method and call this method for multiple files.
You need to pass the file name to this method.
Close the thread if helped.
Manath Pathana16y ago
Thank,

Now I can resolve it. thank for your code.
But I want to download multi-file from Server.
You know about it? it you know please tell me
by send source code.

Best Regard

Mala
Manath Pathana16y ago
Hi
Thank for reply.
but i try do and follow this code
but can not process. it show error.
I want to ask you, when download all file in IIS or it can stay
other folder that not in IIS?

Please See Error Below:

Message: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near '???'.
Line: 4723
Char: 21
Code: 0
URI: http://localhost:9720/ScriptResource.axd?d=jR1WPFCNKIlRXuCamwZa-Tg9qL4KXifHiTJ47YVqRexv2XXUdVnsKk-HBAbRD6nXH6t-KcCCHmWjn_ZkSMVknNNxllqCLQStmaFT2RpOMKA1&t=ffffffffe7c74318