Download file from server to client in asp.net C#

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C#

string path = (@"D:\Doc\Offer letter.pdf"); //get physical file path from server
    string name = Path.GetFileName(path); //get file name
    string ext = Path.GetExtension(path); //get file extension
    string type = "";

    // set known types based on file extension
    if (ext != null)
    {
        switch (ext.ToLower())
        {
            case ".htm":
            case ".html":
                type = "text/HTML";
                break;

            case ".txt":
                type = "text/plain";
                break;

            case ".GIF":
                type = "image/GIF";
                break;

            case ".pdf":
                type = "Application/pdf";
                break;

            case ".doc":
            case ".rtf":
                type = "Application/msword";
                break;
        }
    }

    Response.AppendHeader("content-disposition", "attachment; filename=" + name);

    if (type != "")
        Response.ContentType = type;
    Response.WriteFile(path);

    Response.End(); //give POP to user for file downlaod

i have this code for downloading file from server to client. But this code not yet all showing any dailogue box for doanload and save.Please any one help me.

Posted 22-Aug-14 1:49am

santhu888

Updated 11-Feb-19 2:42am

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Comments

Nirav Prabtani 25-Apr-17 1:09am

Your code is working fine. I have checked it.

2 solutions

Solution 4

Though the post is very old, submitting for any new user having the same kind of issue:

If your problem is just "not getting the dialog box", then it's browser dependent and if it's already checked as 'Do not ask again' kind of selection, it wont appear again. You need not worry about this.

Same code may download the files for another user with dialog box with save button. Check it in different browser ie. Chrome and Firefox.

Posted 11-Feb-19 2:43am

Suresh Madhavaraju

Updated 11-Feb-19 2:44am

v2

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RajeeshMenoth · Accepted Answer · 2014-08-22T02:09:00

u can use this code...

HTML

 protected void lnkfilepath_Click(object sender, EventArgs e) // ur link button 
 {   
     string filename = lnkfilepath.Text;
     string Filpath = Server.MapPath("~/Attachments/" + filename);
     DownLoad(Filpath);     }
     public void DownLoad(string FName){ 
     string path = FName;  
     System.IO.FileInfo file = new System.IO.FileInfo(path);   
     if (file.Exists)  {   
     Response.Clear();  
     Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);                         Response.AddHeader("Content-Length", file.Length.ToString()); 
     Response.ContentType = "application/octet-stream"; // download […]
}