protected void btnFile_Click(object sender, EventArgs e)
{
LinkButton button = (LinkButton)sender;
string offerID = string.Empty;
if (GXGridView1.SelectedValue != null)
{
offerID = GXGridView1.SelectedDataKey.Value.ToString();
}
else
{
offerID = GXGridView1SelectedValue.ToString();
}
string destinationPath = OfferAttachmens_Directory + @"\" + offerID;
string file_path = destinationPath + @"\" + button.Text;
FileInfo fi = new FileInfo(file_path);
FileStream fs = fi.OpenRead();
byte[] byte_get = new byte[fs.Length];
fs.Read(byte_get, 0, byte_get.Length);
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.ContentType = AttachmentController.getMimeType(file_path);
HttpContext.Current.Response.Charset = string.Empty;
HttpContext.Current.Response.Cache.SetCacheability(System.Web.HttpCacheability.Public);
HttpContext.Current.Response.AddHeader("Content-Disposition:", "attachment; filename=" + button.Text);
HttpContext.Current.Response.OutputStream.Write(byte_get, 0, byte_get.Length);
HttpContext.Current.Response.OutputStream.Flush();
HttpContext.Current.Response.OutputStream.Close();
HttpContext.Current.Response.End();
}