Does anyone know how to use httpcontext.response.transmitfile or any other httpcontext function to download a file from a network drive instead of local drive? When I tried to use context.Response.TransmitFile(DownloadPath) to download files, the DownloadPath has to be local drive. If it's a network drive, the download failed.
I am using the code below to enable clients to download a .csv file from my server.
The problem I am having is that when the file is saved to the client computer the file name is prefixed and suffixed with an underscore which leads to a file type of .csv_ which is obviously not a recognised file type.
How can I strip the underscores from the file name at the transmit stage?
Dim FileName As String = LstBox1.SelectedItem.ToString Dim FilePath As String = "~/temp" & FileName Response.Clear() Response.ContentType = "text/csv" Response.AddHeader("Content-Disposition", "attachment; filename=" & FileName & "") Response.TransmitFile(FilePath) Response.End()
I'm working on some code that generates an Excel spreadsheet server-side and then downloads it to the user. I'm using ExcelPackage to generate the file.
The generation is working just fine. I can open the generated files using Excel 2007 with no issues. But, I'm having trouble downloading the file with Response.TransmitFile().
Right now, I have the following code:
//Generate the file using ExcelPackage string fileName = generateExcelFile(dataList, "MyReportData"); Response.AddHeader("content-disposition", "attachment;filename=FileName.xls"); Response.ContentType = "application/vnd.xls" Response.Charset = ""; Response.TransmitFile(fileName);
When Excel 2007 opens the file downloaded as above, it gives the "file format doesn't match extension" warning. After clicking past the warning, Excel displays the raw xml contents of the file. If I change the file extension, like so Response.AddHeader("content-disposition", "attachment;filename=FileName.xlsx"); Excel 2007 gives an "Excel found unreadable content in the file" error, followed by a dialog that offers to locate a converter on the web. If I click "no" on this dialog, Excel is able to load the data.
I've also experimented with different MIME types, like application/vnd.ms-excel and application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, combined with file extensions of .xls and .xlsx. All combinations result in one of the two behaviors mentioned above. What is the correct combination of file extension and MIME type to use in this scenario? What else could cause this failure, other than an improper MIME type or extension? FYI, this is occurring with Visual Studio's built-in development web server. I haven't yet tried this with IIS.
I have following function which is called from a button click event
I am creating a zip file on the fly and wanted to download this file.Problem is that in Internet explorer when I click the button the download accelrator comes with file name as my page saying resume opendialogueif i click open then DAP window close and normal windows download manager comes but the event of my button fires multiple time?I don't know what to do with it
I have a number of pages which need to support exporting data to an Excel spreadsheet. I can generate the Excel files just fine, but I'm trying to work out how to abstract this behavior so it's easily reusable from all of the pages where I need it. My current idea is to use a static utility method, as follows:
The click handler where I'm calling SendExcelFile looks like this:
This code works just fine as an instance method of the calling page. As a static method, though, it doesn't work at all. When I click the button that invokes this, the browser shows the loading animations indefinitely, but never prompts for a file download.
EDIT: If I remove the call to File.Delete() at the end, the method works as expected. Does Response.TransmitFile() do the transfer asynchronously?
EDIT 2: I just needed to call Response.Flush() before I deleted the file.
I have an .net web form that upload an excel file to my server. I would like for this Excel file to be upload to my SQL server since it need to be process by a sql command and the SQL server cannot seems to be able to access the IIS7 when running the quary i needed. All i want to be able to do is to load this excel file to a folder within the SQL server.Here is my web.config folder path -
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) If FileUpload1.HasFile Then Dim FileName As String = Path.GetFileName(FileUpload1.PostedFile.FileName) Dim Extension As String = Path.GetExtension(FileUpload1.PostedFile.FileName) Dim FolderPath As String = ConfigurationManager.AppSettings("FolderPath")
when i try to change the path in the web.config it will tell me it cannot use physical path only virtual.
I have an ASp.net application using C#. I need to copy a file present on the web server machine to a remote machine on the network. Although this seems to be a trivial matter I am having difficulties copying the exe I am Trying
Z: is mapped to the Remote machine network drive. I am able to physically copy files to this drive from the Web Server machine, but when I try from ASp.net, I get the following error System.Io.Exception: Logon Failure: unknown user name or bad password
I think it has to do with the Web Server using the ASPNET user , which does not have the right credentials on the remote machine. I do not know how to solve this issue I tried using WMI too, I was able to copy files from one directory to another directory on the remote machine, but not from the Web Server machine to Remote machine
There are bunch of files stored in a DataBase as varbinary/image data. I am writing a program to extract these file data and send them to the browser so file can be opened or saved. My method is,
BUT this method creates a file in the Server and then transmit to the browser. Means 100s of files will be created in the server when I open 100s of files with this process, naturally I want to avoid that.
Is it possible to do this without creating a copy of the file in the server ?
it works fine when i run it in debug mode, but gives the following error when running through IIS Problems during Load Problems came up in the following areas during loadMissing file: QTnicFLJ5JKZN8dyEzUEsK2jPtygbkw....
I have an MVC controller that returns a file via the Response.TransmitFile
I works splendidly with small files. I noticed with larger files that after the client app receives the file, everything in the file from offset 10000 (hex) to the end of the file is zeroes. The resulting file is the correct length, its just that everything from 1000 on is zeroed out. BTW, WriteFile does the same exact thing.
There is a hyperlink to a local file...for instance....C:/text.txt. This is not possible, because ASP.net does not allow links to local files. But, links to files on network drives such as W:/test.txt are working ok. how does the browser know which drive letter is local,and which is networked? How does it know that C: is local or D: is local etc, and that W: is a network drive?
I am trying to write a file to a network drive from my asp.Net application and i get this error - Logon failure: unknown user name or bad password. I am able to write to a local drive line C:/temp But when I try to save the file to a network drive such as ServerFolder, I get the error mentioned above.
In my company application we send emails to candidates. Now we want to save the those emails ( with attachments ) to a folder on a network as a proof of what we sent to the candidates. How can this be done?
In ASP.NET, if a file was downloaded on a page that was protected by SSL, through a server-side postback that writes to HttpContext.Current.Response.OutputStream, is the transmission that file ALSO protected by SSL?
I'm trying to create an ASPX page that displays both an HTML message ("Please wait, your file transfer will begin momentarily") and also commence transmitting a file. I'm trying to avoid making the user open the page, and then clicking a Download buttonIt seems like this may be possible with a "Multipart/mixed" MIME type. Elsewhere I think I read that ASP.NET won't support this.