I can use Response.TransmitFile on my p.c. using VS2008 fine. But when I moved my code over to the server it won't work. Does the path have to be a virtual directory?
Lets assume you have 1 serverA with dir D:ExcelReports and another serverB thats the webserver. So to transfer a file you would need something like Response.TransmitFile(D:ExcelReports) ?
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.
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I create a window dialog by calling window.showModalDialog;
In that dialog I want to execute a Response.TransmitFile like the code below. The code works fine from a non dialog window. However it just hangs if I call it from the modal dialog page. No error messages. I just doesn't do anything. Is there something else I need to do to get this to function in a dialog window?
string thePath = "c:\temp\New Text Document.txt";
Response.Clear();
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment; filename=" + "New Text Document.txt");
Response.TransmitFile(thePath);
Response.End();
I'm using Response.Filter in order to implement stream compression in accordance with HTTP Request Header Accept-Encoding
Here's the important stuff:
if (AcceptEncoding.Contains("deflate") || AcceptEncoding == "*")
{
HttpApp.Response.Filter = new DeflateStream(PreviousOutputStream, CompressionMode.Compress);
HttpApp.Response.AppendHeader("Content-Encoding", "deflate");
}
By and large this works as intended. However, I'm in a situation where I'm using an ActionResult on an MVC Controller to serve up files to the user agent:
Response.Clear();
Response.Headers["Content-Type"] = contentType;
Response.Headers["Content-Length"] = contentLength;
if (Request.QueryString["dl"] == "1")
{
Response.Headers["Content-Disposition"] = "attachment; filename=" + fileInfo.Name;
}
Response.Flush();
Response.TransmitFile(fileInfo.FullName);
To be more exact, the action method returns new EmptyResult() after the Response.TransmitFile() call. This works exactly as intended without the Response.Filter modification.
In this situation, the response entity reaches the user agent garbled and unintelligible. FireFox's Poster addon shows empty entities or jumbled entities coming back.
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()
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,
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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 ?
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 calling a [WebMethod] with a piece of JQuery. The aim of the following code it to sent a recently zipped file to the user's browser. When the user clicks the 'Download' button, an AJAX request is sent to the ASP.NET page with is supposed to send the zip file. Here is the code.
[WebMethod]
public static void DownloadAlbum(string folderToDownload)
{
string archiveDir = "";
some code...
HttpContext.Current.Response.ContentType = "application/zip";
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" + path);
HttpContext.Current.Response.TransmitFile(path);
HttpContext.Current.Response.End();
}
When this runs, nothing is sent to the browser, but no exceptions are thrown either. I'm unsure as to what is going on and why the file is not downloading. The 'path' DEFINATELY has the correct address, and when the address of the file is hard-code the same happens.
using asp.net 3.5 I am trying to generate a formatted excel spreadsheet and the way i am doing it is:1.Format the excel sheet with data 2.Save it as an xml spreadhseet 3.View it in notepad/textpad and remove the "data" from the xml and have a content holder
such as "DYNAMICDATA" 4.Build dynamic xml for data and replace the "DYNAMICDATA" place holder with this fresh data.5.have all this in a stringbuilderI m stuck here, I want to be able to Response.Write(stringbuilder)but it does not work, I have used the appropriate MIME types etc.However Response.TransmitFile() works when i just transmit an xml spreadsheet to browser.but Response.TransmitFile() takes a file as an argument, I can create a temp file write the created xml and then transmit but that just seems like a heavy overhead.Is there a way i can without creating a file, just transmitXml() using the stringbuilder contents and let the user save the spreadsheet.
I have some code on an aspx page then when users loads the page it starts downloading a zip. Looks like this:
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileSaveName);
Response.TransmitFile(zipPath);
Response.End();
The problem is the FIRST time this is hit I get the following error:
The zip file exists and is not in my wwwroot. If I refresh the page the file will download fine.
If I wrap the code in a Try Catch I get a System.Threading.Threadabort exception with the message:
Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.
NOTE: I actually get that exception every time. I guess its just to do with the Response.End
I am trying to user the Response.TransmitFile() to prompt a download.
I have read a number of posts on the issue and based my method off Rick Strahl's blog [URL]
The only difference (that I can tell) is that I am targeting a physical file outside of the virtual directory.
This code is called in an ajaxified radgrid... I wonder if the response.transmitfile doesn't work with ajax calls?
Here is my code snippet:
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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 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:
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The click handler where I'm calling SendExcelFile looks like this:
protected void lnkExport_Click(object sender, EventArgs e)
{
List<List<string>> dataList = GatherDataForSpreadsheet();
Utility.SendExcelFile(this, "fileNameForDownload.xlsx", dataList, "MyReports");
}
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'm using asp.net 2.0 (VS2005) on a windows 2008 server.
i'm using MS Office 2007
when open word docuemnt from server using the following code -
Response.ContentType = "application/ms-word";
Response.AppendHeader("Content-Disposition", "attachment; filename= " + strDocName);
Response.TransmitFile(Server.MapPath(Defpath1));
Response.End();
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.
I have following function which is called from a button click event
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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
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.
View 2 Repliesi am trying to have a download on my page. I have implemented the code below but code execution stops after the download message pops up, even if i press save or cancel, nothing happens after that.
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I have tried it a few times without Response.Clear() and Response.End() but it didn't make any difference to take these off. Is there anyway I can achieve this without having to using an IFrame?
I have a WCF service in a virtual directory that is called in the code behind of a page that is in the parent directory, when i debug the code i can see the wcf service is being called, however when the service calls Membership.GetUser() it alway returns null. The user has already logged in to the asp.net site. When i call the service via jquery it does pick up the correct user, but i need to be able to call it via the code behind as well. I am developing in .Net 3.5 how i can make the Wcf pick up the logged in user?
View 3 RepliesI made a web form on a development website of mine (we'll call it dev.somewhere.com) and tried to publish it out to the web (we'll call it [URL]) in a subfolder. I named it default.aspx like I was supposed to and it worked flawlessly on the dev site. When I published it out the web, I wound up getting the following error when trying to get to the subfolder: [URL] Directory Listing Denied
This Virtual Directory does not allow contents to be listed. Confused and flustered, I tried to go to [URL], but I wound up with some error that won't tell me the problem. Instead it tells me to change the my web.config to read <customErrors mode="Off"/>.
As virutal directory points to physical path of the application, so if the IIS root directory is C:inetpubwwwroot and the application is stored at D:websites, than we need to create a virtual directory but if the application content is placed at C:inetpubwwwroot, then why still need to create virtual directory.
View 3 RepliesIt is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. this error occured in web.config file.
<system.web>
<sessionState mode="InProc" cookieless="false" timeout="30"/>
<authentication mode="Forms"/>
<compilation debug="true">
how to convert virtual directory in the application in xp????
View 1 RepliesHow to give absolute path, that working with virtual directory and localhost
/Image/Icon.jpg - it is working well with localhost
/Image/Icon.jpg - It is not working on Virtual directory
I want absolute path solution which is working on both virtual and localhost directory
COMPLETE NOOB, dont know anything.. I have a Virtual directory ~/ClubInfoFiles that i upload some files too using a uploader i made. I might want to change the uploader i made to be able to change to a subdirectory or something so i can upload all files into one folder but different subdirectorys. the uploader i would like to be able to have a dropdown menu of all the subdirectorys within "ClubInfoFiles" say i has subfolders : Minutes, Flight Plans, Maintence Records, etc... but i would also like a field to where i can create a new subdirectory and have it automaticly update the dropdown. i want to list those files in gridview and have a link to dowload/open and dellete the files. i have found some code that gets close but it uses Auto Generate columns. really i dont need all that jazz, just the Name, File extention, and hyperlink the file for download/view. i would like to be able to delete and possible upload using the gridview... is this to much for a noob?
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