How to Download in in file

Question

Download for pdf,documents,and video and audio use c# use in my project use download any file ...

Rajesh Gami · Answer

try this code for download pdf file. #region Export PDF public async Task ExportPDF() { //student list //var dataList = GetStudentList(); var users = _context.TEntity.Select(u => new Employee { Id = u.Id, Name = u.Name, Address = u.Address, Birthdate = u.Birthdate, Gender = u.Gender, Email = u.Email, Designation = u.Designation, Salary = u.Salary }).ToList(); if (users == null ) return null ; //column Header name var columnsHeader = new List string >{ "S/N" , "Name" , "Address" , "Birthdate" , "Gender" , "Email" , "Designation" , "Salary" }; var filecontent = ExportPDF(users, columnsHeader, "TEntity" ); return File(filecontent, "application/pdf" , "Employee.pdf" ); ; } #endregion #region Helpers of Export PDF private byte [] ExportPDF(List dataList, List string > columnsHeader, string heading) { var document = new Document(); var outputMS = new MemoryStream(); var writer = PdfWriter.GetInstance(document, outputMS); document.Open(); var font5 = FontFactory.GetFont(FontFactory.HELVETICA, 11); document.Add( new Phrase(Environment.NewLine)); //var count = typeof(UserListVM).GetProperties().Count(); var count = columnsHeader.Count; var table = new PdfPTable(count); float [] widths = new float [] { 2f, 5f, 5f, 5f, 3f, 6f, 4f, 3f }; table.SetWidths(widths); table.WidthPercentage = 100; var cell = new PdfPCell( new Phrase(heading)); cell.Colspan = count; for ( int i = 0; i { var headerCell = new PdfPCell( new Phrase(columnsHeader[i], font5)); headerCell.BackgroundColor = BaseColor.Gray; table.AddCell(headerCell); } var sn = 1; foreach (var item in dataList) { table.AddCell( new Phrase(sn.ToString(), font5)); table.AddCell( new Phrase(item.Name, font5)); table.AddCell( new Phrase(item.Address, font5)); table.AddCell( new Phrase(item.Birthdate.ToString(), font5)); table.AddCell( new Phrase(item.Gender, font5)); table.AddCell( new Phrase(item.Email, font5)); table.AddCell( new Phrase(item.Designation, font5)); table.AddCell( new Phrase(item.Salary.ToString(), font5)); sn++; } document.Add(table); document.Close(); var result = outputMS.ToArray(); return result; } #endregion step 2: Now in list view @model IEnumerable @{ ViewData[ "Title" ] = "Index" ; } Index "~/js/pdf.js" > class = "btn btn-default" asp-action= "Create" >Create New class = "btn btn-default" style= "float:right;" asp-action= "ExportPDF" >Create PDF class = "table" > @Html.DisplayNameFor(model => model.Id) @Html.DisplayNameFor(model => model.Name) @Html.DisplayNameFor(model => model.Address) @Html.DisplayNameFor(model => model.Birthdate) @Html.DisplayNameFor(model => model.Gender) @Html.DisplayNameFor(model => model.Email) @Html.DisplayNameFor(model => model.Designation) @Html.DisplayNameFor(model => model.Salary) @Html.DisplayNameFor(model => model.Resume) @Html.DisplayNameFor(model => model.Photo) @ foreach (var item in Model) { @Html.DisplayFor(modelItem => item.Id) @Html.DisplayFor(modelItem => item.Name) @Html.DisplayFor(modelItem => item.Address) @Html.DisplayFor(modelItem => item.Birthdate) @Html.DisplayFor(modelItem => item.Gender) @Html.DisplayFor(modelItem => item.Email) @Html.DisplayFor(modelItem => item.Designation) @Html.DisplayFor(modelItem => item.Salary) @Html.DisplayFor(modelItem => item.Resume) @Html.DisplayFor(modelItem => item.Photo) @Html.ActionLink( "Edit" , "Edit" , new { id=item.Id }) | @Html.ActionLink( "Details" , "Details" , new { id = item.Id }) | @Html.ActionLink( "Delete" , "Delete" , new { id = item.Id }) } thanx

Rajeesh Menoth · Answer

Hi, Try this code : protected void lnkfilepath_Click( object sender,EventArgse) //urlinkbutton { string filename=lnkfilepath.Text; string Filpath=Server.MapPath(“~/Attachments/”+filename); DownLoad(Filpath); } public void DownLoad( string FName) { string path=FName; System.IO.FileInfofile= 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”; //downloadalltypesoffiles.. Response.WriteFile(file.FullName); Response.End(); } else { Response.Write(“Thisfiledoesnotexist.”); } } Reference : https://rajeeshmenoth.wordpress.com/2014/06/25/how-to-download-files-using-asp-net-c/

Nilesh Sawardekar · Answer

try this http://www.csharp-examples.net/download-files/

Rajesh Gami · Answer

Hello barathi please refer this code for Download Video. //Create a stream for the file Stream stream = null ; //This controls how many bytes to read at a time and send to the client int bytesToRead = 10000; // Buffer to read bytes in chunk size specified above byte [] buffer = new Byte[bytesToRead]; // The number of bytes read try { //Create a WebRequest to get the file HttpWebRequest fileReq = (HttpWebRequest) HttpWebRequest.Create(url); //Create a response for this request HttpWebResponse fileResp = (HttpWebResponse) fileReq.GetResponse(); if (fileReq.ContentLength > 0) fileResp.ContentLength = fileReq.ContentLength; //Get the Stream returned from the response stream = fileResp.GetResponseStream(); // prepare the response to the client. resp is the client Response var resp = HttpContext.Current.Response; //Indicate the type of data being sent resp.ContentType = "application/octet-stream" ; //Name the file resp.AddHeader( "Content-Disposition" , "attachment; filename=\"" + fileName + "\"" ); resp.AddHeader( "Content-Length" , fileResp.ContentLength.ToString()); int length; do { // Verify that the client is connected. if (resp.IsClientConnected) { // Read data into the buffer. length = stream.Read(buffer, 0, bytesToRead); // and write it out to the response's output stream resp.OutputStream.Write(buffer, 0, length); // Flush the data resp.Flush(); //Clear the buffer buffer = new Byte[bytesToRead]; } else { // cancel the download if client has disconnected length = -1; } } while (length > 0); //Repeat until no data is read } finally { if (stream != null ) { //Close the input stream stream.Close(); } }

Rafnas T P · Answer

hi, you can download file giving url try below code code will dowload file from given url and in red color you have to mention filename with extention using (var client = new WebClient()) { client.DownloadFile( "http://example.com/file/song/a.pdf" , "a.pdf" );//download pdf }

Jyothi Augustine · Answer

error in this line Response.Clear();

Jyothi Augustine · Answer

i want to download any file from folder dotnet windows appilication using c# user02.futuro@gmail.com send me plz

Munesh Sharma · Answer

http://www.aspdotnet-suresh.com/2012/02/saveupload-files-in-folder-and-download.html

Manoj Bhoir · Answer

Hi, You can write code like this : System.Web.HttpResponse response = System.Web.HttpContext.Current.Response; response .ClearContent(); response .Clear(); response .ContentType = "APPLICATION/OCTET-STREAM"; response .AddHeader("Content-Disposition", "attachment; filename=" + yourfileName + ";"); response .TransmitFile(Server.MapPath("FileName")); response .Flush(); response .End(); Check this links for how to implement file download. http://www.aspdotnet-suresh.com/2012/02/saveupload-files-in-folder-and-download.html http://www.codeproject.com/Tips/185886/File-Upload-and-Download-in-ASP-NET http://stackoverflow.com/questions/18477398/asp-net-file-download-from-server

Nitin · Answer

Use the following Code protected void Download_Click(object sender, EventArgs e) { try { string strURL = txtFileName.Text; WebClient req = new WebClient(); HttpResponse response = HttpContext.Current.Response; response.Clear(); response.ClearContent(); response.ClearHeaders(); response.Buffer = true ; response.AddHeader( "Content -Disposition" , "attachment;filename=\"" + Server.MapPath(strURL) + "\"" ); byte[] data = req.DownloadData(Server.MapPath(strURL)); response.BinaryWrite(data); response.End(); } catch (Exception ex) { } }