I need to backup my database and I want to get that file as a download file. Simply when you get some kind of file from any website, they are just downloaded. I want to backup my database without setting a directory to that.
sqlcmd = new SqlCommand("backup database test to disk='" + backupDIR + "\\" + DateTime.Now.ToString("ddMMyyyy_HHmmss") + ".Bak'", con);
In this coding it sets a backup directory. I want to get that file as a downloaded file via browser.
How can this be achieved?
Try this
public FileResult Download()
{
byte[] fileBytes = System.IO.File.ReadAllBytes(#"c:\folder\myfile.ext");
string fileName = "myfile.ext";
return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
}
From here
public ActionResult Backup()
{
BackupDB db = new BackupDB();
if (db.BackupDatabase())
{
ViewData["Success"] = "Backup is completed Successfully";
Download("09062016_200840.Bak");
return View("AdminIndex");
}
ViewData["Exception"] = "Backup Failed";
return View("AdminIndex");
}
public FileResult Download(string ImageName)
{
return File("C:\\Backups" + ImageName,System.Net.Mime.MediaTypeNames.Application.Octet);
}
Related
public ActionResult FileLink(string hashname)
{
try
{
const string basePath = #"\\WINDHOVERDOCUMENTS\";
const string adminSamples = #"Beta\students\";
return File(basePath + adminSamples + hashname, "application/force-download", hashname);
}
catch (Exception)
{
return null; //no file
}
}
This action simple force user to download the file when the action is triggered. Everything works fine locally. But after publishing to server, it gives me this error. Below is the screenshot. Can anyone help? Thank you. please zoom in to see the screenshot. Sorry.
I solved that by reading the file to byte array then return file content result
var fileBytes = System.IO.File.ReadAllBytes(#"\\path\fileP12.zip");
return File(fileBytes, "application/zip", "package.zip");
I want to upload file to git without saving on local disk. I use vaadin + java in my webapp, and upload component from vaadin.
public OutputStream receiveUpload(String filename, String MIMEType)
{
this.filename = filename;
FileOutputStream fos = null;
try {
// exist any possibility to no saving file in filepath (only push
// to git)
fos = new FileOutputStream(new File(
filepath + File.separator + filename));
} catch (Exception e) {
// How to omit it, I don't want to save file in filepath...
return null;
}
return fos;
}
public void uploadSucceeded(Upload.SucceededEvent event)
{
try {
// this method read file from filepath. Exist any possibilty to
// transfer file from upload panel to here without saving this
// file in filepath ?
commitToGit(filepath + File.separator + filename);
} catch(Exception e) {
e.printStackTrace();
} finally {
// removing file from filepath, it is no comfortable for me
File file = new File(filepath + File.separator + filename);
if (file != null) {
file.delete();
}
}
}
Look here for the pipe functionality
Best way to Pipe InputStream to OutputStream
in the receiveUpload method you setup the pipe between the uploading file and your git connector.
The uploadSucceeded method is then not needed or can be used to cleanup resources.
I am encountering a problem in getting the download prompt. In the below code first am allowing the user to upload a file to compress. Once the file is compressed the user should be provided with the compressed files. But in the below code download prompt doesn't appears neither it shows any error. Please help me by correcting my code
The view code:
function CompressFile(box) {
var file = document.getElementById('fileComp');
if (file.value == "") {
alert("Choose a file to upload");
return false;
}
dhtmlx.modalbox.hide(box);
var fd = new FormData();
fd.append('file', file.files[0]);
var xhr = new XMLHttpRequest();
xhr.open('POST', '/FileUpload/Compress', true);
xhr.send(fd);
}
The controller code:
public ActionResult Compress(HttpPostedFileBase file)
{
var supportedType = new[] { "pdf" };
var fileExt = System.IO.Path.GetExtension(file.FileName).Substring(1);
var filename = Path.GetFileNameWithoutExtension(file.FileName) ?? "";
if (file.ContentLength > 0 && supportedType.Contains(fileExt))
{
string filePath = Path.Combine(HttpContext.Server.MapPath(_uploadPDF), Path.GetFileName(file.FileName));
file.SaveAs(filePath);
PdfReader reader = new PdfReader(filePath);
string name = DateTime.Now.ToString("ddMM_HHmmss");
name = Server.MapPath(_fileUploadPath + name + ".pdf");
PdfStamper stamper = new PdfStamper(reader, new FileStream(name, FileMode.Create), PdfWriter.VERSION_1_5);
stamper.FormFlattening = true;
stamper.SetFullCompression();
stamper.Close();
string fn = System.IO.Path.GetFileName(name);
return base.File(name, "application/pdf",fn);
}
else
{
return View();
}
}
The problem is that you're using Ajax. You can't download a file through Ajax. You need to do a regular POST to the ActionMethod. That way the browser can send you back the file and prompt the user where he wants to save it.
I need to programmatically open an Excel file that is stored in a MOSS 2007 Shared Documents List. I’d like to use an OleDbConnection so that I may return the contents of the file as a DataTable. I believe this is possile since a number of articles on the Web imply this is possible. Currently my code fails when trying to initialize a new connection (oledbConn = new OleDbConnection(_connStringName); The error message is:
Format of the initialization string does not conform to specification starting at index 0.
I believe I am just not able to figure the right path to the file. Here is my code:
public DataTable GetData(string fileName, string workSheetName, string filePath)
{
// filePath == C:\inetpub\wwwroot\wss\VirtualDirectories\80\MySpWebAppName\Shared Documents\FY12_FHP_SPREADSHEET.xlsx
// Initialize global vars
_connStringName = DataSource.Conn_Excel(fileName, filePath).ToString();
_workSheetName = workSheetName;
dt = new DataTable();
//Create the connection object
if (!string.IsNullOrEmpty(_connStringName))
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
oledbConn = new OleDbConnection(_connStringName);
try
{
oledbConn.Open();
//Create OleDbCommand obj and select data from worksheet GrandTotals
OleDbCommand cmd = new OleDbCommand("SELECT * FROM " + _workSheetName + ";", oledbConn);
//create new OleDbDataAdapter
OleDbDataAdapter oleda = new OleDbDataAdapter();
oleda.SelectCommand = cmd;
oleda.Fill(dt);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
finally
{
oledbConn.Close();
}
});
}
return dt;
}
public static OleDbConnection Conn_Excel(string ExcelFileName, string filePath)
{
// filePath == C:\inetpub\wwwroot\wss\VirtualDirectories\80\MySpWebAppName\Shared Documents\FY12_FHP_SPREADSHEET.xlsx
OleDbConnection myConn = new OleDbConnection();
myConn.ConnectionString = string.Format(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=Excel 12.0");
return myConn;
}
What am I doing wrong, or is there a better way to get the Excel file contents as a DataTable?
I ended up using the open source project Excel Data Reader
How to download the file from server file to out local file system of type (.wmv) video file using Asp.net MVC pattern.
The files are existed in the Server File system in a cetain folder. The correponding file name existed in our local database.
Using Server's file system path + filename(.wmv) have to store into my local file system. please send me the links or code.
In your controller:
public void Open()
{
var serverfilepath = "some logical path";
var filename = "some file name";
Response.AddHeader("Content-Disposition", "attachment; filename=" + filename);
Response.ContentType = "video/x-ms-wmv";
Response.Charset = "utf-8";
Response.HeaderEncoding = UnicodeEncoding.UTF8;
Response.ContentEncoding = UnicodeEncoding.UTF8;
var fi = new FileInfo(serverfilepath);
if ( fi.Exists )
{
using( var fs = fi.OpenRead() )
{
// you should really buffer this...
var bytes = new byte[fs.Length];
fs.Read(bytes, 0, (int)fs.Length);
Response.BinaryWrite(bytes);
}
}
Response.End();
}