Is there any way to find Response.ContentType based on file extension dynamically. i don not want to hard code ContentType in my code like below.
Response. ContentType = "application/ms-word";
I have following function which is called from a button click event
[Code]....
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
Scenario: a user must fill in some data in mutiple controls (textbox, etc) and after that all these values must be passed to a next page. The number of controls is defined in a database. This can be different each time so I need to find a way to dynamically pass values through response.redirect("page.aspx?var1=value1&var2=value2......");
View 2 Repliesconvert webservice xml response to object dynamically using JSON
View 1 RepliesOccaisionally our office printer craps out on us in the middle of a print job, or someone just forgets to print because they get interrupted. In the good 'ole days, I built up my response using a StringBuilder and output the contents to the screen and to a log file in case we ever needed to go back and re-print.
Now I'm working with a system that makes use of all the .Net yumminess (Repeaters, page events, etc) rather than building up the HTML in code. Is there a way for me to log/archive the entire HTML response generated by the server for a particular page (e.g. hook into the Page_Render event and dump the output to a file)?
I've been pulling my hair out about this for ages. I have a WebService which sends a zip file to the browser. This works; when I test the WebService and 'invoke' the method through it directly, the zip file is downloaded to the browser correctly.
The problem arises when I use jQuery to send an AJAX request to the WebService - the zip file is downloaded to the response, but it stays in the response and doesn't download as a file.
Here is my code:
[Code]....
Now this works since the file downloads when I use the 'invoke' function when navigating directly to the service.
Here is my jQuery AJAX request...
[Code]....
I added the code in 'beforeSend' so that the request states explicitly what type of response the browser should expect.
I've been using Firebug to monitor the request/response headers and can't see anything wrong with them (except when I look at the content of the response, it's full of binary data AND its the same size as the file I'm sending.
I just attempted to upload screen-dumps of the request/response headers and the content of the reponse but I don't have enough reputation points to do this yet :-(
The Response is the same size of the Zip file so I'm assuming its being sent back to the browser, but the browser doesn't know what to do with it.
Tested in IE, FF & Chrome and the results are consistent.
i need to response a file to a new window. here my code. pls guide me what i have to add.
[Code]....
Is it possible to use the Response.AddHeader particularly Im trying to use the "Refresh" of it. I need it to pause before it redirects but the place where the code is being ran is in a ASCX in the codebehind. It does nothing when I have the following in my Codebehind:
HttpContext.Current.Response.AddHeader("Refresh", "6;URL=Default.aspx");
Any way I can redirect a user in the codebehind on a ascx page?
I hope this is a ridiculously simple problem. In my ASP.NET MVC web application, I have several places where the appropriate response to the {whatever}/Detail/{#} URL is the binary content of a file that lives outside of the installed application, with an appropriate ContentType in the header.I don't_ want to expose the directory containing the files or its contents as files to the web. That would make it possible to browse other files by educated guessing and would require special work to interact well with the authorization mechanism.I _do_ want HTTP response to contain the content stream of the file corresponding to the supplied ID, so that it will result in the usual open or save-to-file stuff in the browser. The client should have no clue as to where the content originates I can imagine a solution where I write code in my controller to open streams and feed the output to the response, taking the HttpResponse by the throat and forcing it to skip the master page and forcing the content type. I'm already doing something similar
to dump some log content into a support page.However, ASP.NET MVC is a strong framework and this has got to be a pretty common situation. Is there a kinder, gentler way to do this already provided by the platform, either through routing or in my controller? At first blush, I didn't see an ActionResult for this. I do see that returning something other than an ActionResult will cause the object supplied to be rendered as content, which sounds like what I want. However, what sort of object should I return to do this for a whole file, perhaps a relatively large.
have the following
Response.ContentType =
"application/octet-stream";
Response.AppendHeader("Content-Transfer-Encoding",
[code]...
Error 1 'Response' is an ambiguous reference between 2 references that have a Response.Neither is the one I need,how do i reference the Response that write the file?
This code is in control.ascx and control is put in ModalPopup.aspx page.First ai try with response.end() - this code throw exception.
After ai try coment this line, but nothing is hapen.
Browser is IE8
try
{
//export [code].....
I am having a class file in which i want to redirect the page from one application to another application or how to use the response.redirect method in a class file
View 4 RepliesWhen I click a button, it will bring out a ModalPopup panel saying "Pls wait" until the process is finished at the code -behind. The process is generating an excel file and prompt out a save as dialog box. However, When I called the code below, the modalpopup panel will not be closed automatically.
string file = DateTime.Now.ToString("yyyyMMdd") + ".xls";
Response.Clear();
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "attachment; filename=" + file);
workbook.SaveToStream(Response.OutputStream, SpreadsheetGear.FileFormat.Excel8);
Response.End();
if I don't call the code above, the modalpopup panel is closed success.
I want the ModalPopup panel to be closed automatically after saving the file, is there any way to bring out a save as dialog box other than using Response. method?
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:
[code]....
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've recently developed a web user control that lists a series of reports. When the user clicks on the report it serves back a CSV file download in the response stream using the following code:
Response.Clear();
Response.ContentType = "text/CSV";
Response.CacheControl = "no-cache"; [code].....
The code initially worked fine in all browsers. Then the client put a requirement to use SSL for the site. As part of this I introduced a global handler to update the protocol from HTTP to HTTPS for all requests as follows:
protected void Application_BeginRequest(Object sender, EventArgs e)
{
string requestURL = Request.Url.ToString().ToLower();[code]....
However, since securing the site using SSL the CSV file downloads no longer work for IE although they do continue to work for Firefox / Chrome / Safari.
Is there something I am missing in the headers that is unique to IE in order for the file response to work correctly?
The message I receive from IE is:
"Internet Explorer cannot download
Reports.aspx from .... in ......
Internet Explorer was unable to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later."
UPDATE:
Here is some example fiddler output coming back from the page request which looks like it's serving correctly. Why doesn't IE understand that it's just been served a file?
HTTP/1.1 200 OK
Date: Tue, 09 Nov 2010 14:23:50 GMT
Server: Microsoft-IIS/6.0[code].....
I have converting some pages into the PDF/Documents.
My requirement
1)Generate dynaimaclly document (Done already)
2)Save the file (Not done)
3)Mail the saved files as an Email to the user (Not done)
How do I write Response.OutputStream to a file preferably in C#?
View 2 RepliesI am using a gridview to display (open or save) files that have been uploaded into a SQL 2005 server. I have a templatefield within the gridview that contains a linkbutton that does a postback to GetUploadedFile.aspx that then fires the response.binarywrite() code. The code seems to work fine and opens/saves the files correctly. But once this has completed and I try and click on another button on the page, instead of doing the appropriate action it re-fires the getuploadedfile.aspx binarywrite code and opens up the "Open/Save/Cancel" dialog again.
[Code]....
[Code]....
[Code]....
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?
View 1 RepliesI have a simple webservice that I would like to upload a file to. The problem is that I need the response in json.
Form my experience in order to get a response in Json my request has to have a content-type of 'application/json'. But ofcourse this cannot be the case with a file upload since the content type will have to be 'multipart/form-data'.
In my Json i want to return a value showing whether successful and a filename.
[code]...
I am a newbie of handling memory.
in my web apps, files are stored as varbinary in sql server.
my goal is to make a response to let users to download the files.
if there is a file (500 MB) stored in one record in the sql server,
what is the best way to let users download it?
I found that , in code-behind, if the files are loaded as byte[] objects, it uses the memory.
for example, the datalength of a file in the database is 500 MB.
the byte[] for this file uses 500 MB memory. am I correct?
how about the filestream? if the file is loaded as a filestream object in code-behind.s
does it also take 500 MB memory?
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 a button that when clicked, will generate a PDF and write it out to the response.This is the basic structure of the code:
try
{
using(Stream stream = generatePdf())
{
[code]...
Downloading the file works fine, except that it doesn't complete the postback.If I were to throw an exception above file.Transmit, the error handling would work properly and I would see the message get displayed in my browser. However, if there is an exception after the file.Transmit then nothing happens. The user saves/opens the pdf and the page does not reload.How can I make it so that the postback always completes, that way I can display an appropriate message to the user?