How to set Download file in download buttone c#.NET

Question

Hii friends, How to set Download file in download buttone, "Download button" just click a download file. Using c#.NET fremwork

Sachin Singh · Answer

This is how can you download a file on button click protected void Button1_Click( object sender, EventArgs e) { string filePath = "C:\Users\sachin\Desktop\sharpencode.txt" ; //any file FileInfo file = new FileInfo(filePath); if (file.Exists) { // Clear Rsponse reference Response.Clear(); // Add header by specifying file name Response.AddHeader( "Content-Disposition" , "attachment; filename=" + file.Name); // Add header for content length Response.AddHeader( "Content-Length" , file.Length.ToString()); // Specify content type Response.ContentType = "text/plain" ; // Clearing flush Response.Flush(); // Transimiting file Response.TransmitFile(file.FullName); Response.End(); } else Label1.Text = "Requested file is not available to download" ; } } }

Satya Karki · Answer

You can user below code private void Button1_click(object sender, EventArgs e) { Response.Redirect("~/YourDocumentFolderName/DocumentName.pdf"); }

Rijwan Ansari · Answer

For download simply add response.redirect with URL in your button_click event Example Response.Redirect( "~/Download/instructions.docx" ); Regards Rijwan

Pravanjan Nayak · Answer

protected void btnsubmit_Click(object sender, EventArgs e) { try { if (FileUpload1.PostedFile.FileName != "") { string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName); string extension = Path.GetExtension(FileName); if (extension.ToLower() != ".mp4" && extension.ToLower() != ".MP4" && extension.ToLower() != ".mkv" && extension.ToLower() != ".MKV" && extension.ToLower() != ".avi" && extension.ToLower() != ".AVI" && extension.ToLower() != ".wmv" && extension.ToLower() != ".WMV" && extension.ToLower() != ".webm" && extension.ToLower() != ".WEBM" && extension.ToLower() != ".flv" && extension.ToLower() != ".FLV" && extension.ToLower() != ".MPEG" && extension.ToLower() != ".mpeg") { ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Please upload files having extensions: .mp4,.mkv,.avi,.wmv,.webm,.flv,.mpeg only')", true); return; } if (FileUpload1.PostedFile.ContentLength > 10000) { FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Videos/" + FileName)); string savePath = "~/Videos/" + FileName; string k = FileUpload1.PostedFile.FileName; if (FileUpload1.PostedFile != null) { int fileSize = FileUpload1.PostedFile.ContentLength; if (fileSize > 209715200) { ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Maximum allowed file size is 200(MB)')", true); } else { //Save here ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Video Uploaded Successfully')", true); } } } } else { ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('File Name Can not be Empty.Please select a file')", true); } } catch { } }

Harsh Shah · Answer

Try the below code... protected void Button1_Click(object sender, EventArgs e) { const string fName = @"C:\picture.bmp"; FileInfo fi = new FileInfo(fName); long sz = fi.Length; Response.ClearContent(); Response.ContentType = MimeType(Path.GetExtension(fName)); Response.AddHeader("Content-Disposition", string.Format("attachment; filename = {0}",System.IO.Path.GetFileName(fName))); Response.AddHeader("Content-Length", sz.ToString("F0")); Response.TransmitFile(fName); Response.End(); } public static string MimeType(string Extension) { string mime = "application/octetstream"; if (string.IsNullOrEmpty(Extension)) return mime; string ext = Extension.ToLower(); Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext); if (rk != null && rk.GetValue("Content Type") != null) mime = rk.GetValue("Content Type").ToString(); return mime; }