C# - Update Page After File Download?
Oct 26, 2010
I put together a download script after some wonderful help from stack overflow the other day. However I've now found that after the file has been downloaded I need to reload the page to get rid of the progress template on the aspx page. The code to remove the template worked before I added in the download code.
Code to remove progress template: upFinanceMasterScreen.Update();
I've tried calling putting this before and after the redirect to the IHttpHandler
Response.Redirect("Download.ashx?ReportName=" + "RequestingTPNLeagueTable.pdf");
[code]...
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Oct 13, 2010
I'm about to submit my pad file to multiple sharware sites but the pad file has to have a direct link to the download file and can't link to a download page which is what I would like to do, so I can track the traffic and get the downloader's email before allowing the download. I am running an ASP.NET site in VB. Is there a way to tell the web app to redirect to a specific aspx page when it receives a request for a specific file?
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Mar 3, 2011
I have struggled with this for the last 2-3 days. I have a tab container control with a update panel surrounding it. On one of the tabs I have allowed the user to upload and download files to a SQL Server database. The upload works fine and the download works fine only when I remove the update panel.
I have tried to implement the solution that's provided at the following location...http://encosia.com/2007/02/23/ajax-file-downloads-and-iframes/I had to modify the code a little bit to fit my scenario but it looks like it would work. Is there another way to download files from a database within a update panel?
If there isn't another way to do this what could be wrong with my code...following the example on the encosia site...
Page starting from [Code]....
The code never gets past the if statement with in this java script. Should I put a trigger on the update panel to force a post back. Any help will be appreciated, java script is not my strong point.
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Dec 10, 2010
i m creating asp.net Mobile website page to download symbian .sis file to mobile ,but its not geting download properly.its working perfectly on desktop.
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Sep 14, 2010
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Dec 21, 2011
I am writing something that will use my database to generate/populate some Word/Excel Template Documents for Contracts. These will be written to a directory on my server that I want my user to be able to have access to to download these contracts from. I was thinking a GridView with a TemplateField with a Hyperlink in it for simplicity's sake.
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Nov 18, 2010
The user click on a LinkButton, and the page does a PostBack. But I also need to prompt a file download to the user at the same time.
In order to do that, I did this on the LinkButton
lnkPrint.Attributes.Add("onclick", "window.open('Download.ashx?type=x')");
The Download.ashx Http Handler generates the file (Content-Type : application/pdf), and if I click on my LinkButton, it does PostBack and download the file after showing a popup... But I can't manage to close this popup automatically.
I tried some methods
settimeout('self.close()',1000) after the download Setting a RegisterStartupScript on the LinkButton.Command, to trigger the download after the postback, but IE6 prompts a warning that disturbs my users
So, none of these methods seems to work fine.
So, my question is : Is there a way to make the popup instantly disappear, or is there a means to make the page download the file AND postback at the same time ?
PS : I thought of the Your download will begin shortly method, but I'm afraid I'll have the same issues as before with the RegisterStartupScript...
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Oct 25, 2010
I am trying to accomplish something that websites like CNET do for downloading.
When a button on a page is clicked I want the user to be taken to a page..called download.aspx, the whole page is displayed with information
like "your download is starting..." and then the file is presented to be download.
What I did.
In my main page on the button click event...I do a Response.Redirect("download.aspx"); and in the download.aspx page
load event I present a Response.TransmitFile("myfile.exe");
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Dec 20, 2010
how to download a file from a button_click event and when the file has finished downloading to transfer to another web page. vb.net
e.g
Dim
myFilepath As
String =
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[Code]....
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Jan 11, 2011
I'm trying to use a java servlet in a 3rd party tool's web interface (CA service desk) to invoke it's download file functionality using a webclient in vb.net. The trouble is the text stream from response is markup and not the acutual text file stream.
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Mar 2, 2011
How can I force the download of a file on a ASP.NET page using datas from that page's ViewState?
Response.ClearContent();
Response.ContentType = "text/plain";
Response.AddHeader("Content-Disposition", "attachment; filename=" + "example.aaa");
Response.Write( this.ViewState["stuffs"] );
Response.End();
But if I do that the current page will be erased and return blank to the user.
Other examples says to create "download.aspx" and request it by javascript, but on a this new page I won't have access to the ViewState data of the first page.
The point is, how can I create a file, launch the download and don't lose the current page status?
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Jan 4, 2010
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Jun 10, 2013
I have added linkbutton inside gridview to download, below is my code..
protected void lnkDownload_Click(object sender, EventArgs e)
{
try
{
[Code].....
its giving me following error
"Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack"
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Sep 2, 2013
I need to download a .mp3 file from a folder. during download a new blank page should open and after downloading it should close automatically.
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Jul 12, 2010
I am calling a file download action from javascript:
$elem.click(function() {
window.location.href = 'MyController/MyFileDownloadAction';
});
The controller returns a file:
[code]...
This action has a pretty high likelyhood of throwing an exception (or at least not being able to return the file).
Due to the nature of the application (which contains a lot of dynamic content), I can't really redirect to an error page in this situation. The current page needs to stay open somehow.
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Oct 12, 2010
I am using some code similar to the code below to open a word document on my ASP.net app. Once the file has been downloaded and opened I then want to either redirect to another page or refresh the screen but nothing works after response.end and if i add it before response.end the browser never downloads the file?
[Code]....
[Code]....
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Sep 20, 2015
I want to download a file from database using asp.net c# code in page load event.My table design as below
Table Name: tblFiledownload
Id - int
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Jul 26, 2010
I am downloading file from database using the following code. This code downloads an excel file from the database which has a macro attached to it when it is opened. This macro reads file name of the excel file and uses it for its computation. Everthing works file if user saves the file on his harddisk and then open if but if he directly opens the file from the dialog(by hitting 'Open' button) then file name of the opened excel file comes out be the name of the webform that has the above code and this leads to error in the macro. Is there any option through which i can control the name of the file if user directly opens the file from dialog or the option to disable or remove 'Open' button form the dialog?
[Code]....
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Jul 28, 2010
I don't think there is a way around this but figured I'd ask... We have an application where a user can generate PDF documents that are streamed to the browser. There is some additional functionality going on behind the scene and I would like to be able to display a message to the user (via updating a literal tag on the page). I don't get any errors when doing this but the page isn't updated and the message isn't displayed. My guess is that streaming the document blocks any other content from going down to the client. In particular, we're using CeTe Dynamic PDF and calling one of their methods but I think it's essentially just doing a Response.BinaryWrite to stream out the PDF.
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Nov 16, 2010
In our application, we allow user to upload documents which can be PDF, Doc, XLS, TXT. Uploaded documents will be saved on web server. We need to display link for each document user uploaded and when user click on that link, it should open relevant document. it is expected to have required software to open relevant documents.
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Mar 26, 2011
This below code i have used in my aspx page for file download.
Response.AppendHeader("content-disposition", "attachment; filename="" + emailAttachment.FileName + "";");
Response.ContentType = "application/octet-stream";
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This block of code display Download file Dialog for Open or Save the attached file.It's working fine in Mozila Firefox and IE8 but doesn't display Download file Dialog box in IE 7
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Jan 14, 2013
I have made an application where I am displaying the .pdf , .doc , .docx files. These files are uploading from an Admin Panel.When user place a mouse pointer on download icon provided in front of every file, it shows the complete path where it’s get saved.I want to avoid this path visibility even when user place mouse on download icon and even if it Inspect an element (as most modern browser will have this functionality).
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Feb 1, 2011
I have a simple 'file download' generic handler which sets the response contenttype and headers before sending the file through the same response.
I also have Response.Cache.SetCacheability(HttpCacheability.server) set in the global.asax.
As I have noticed from various sources, Internet Explorer doesn't like this no-cache setting and gives an error when trying to download the file (requested site unavailable or cannot be found).
I thought maybe I could override this setting in the .ashx page, so I alter the response's cacheability setting to public. This did not solve the issue. removing the line from global.asax does solve the problem but obviously affects the whole site.
Is there a way of setting the cachability just for my generic handler?
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Dec 30, 2010
In an ASP.NET WebForms 2.0 site we are encountering an intermittent bug in IE6 whereby a file download attempt results in the contents of the being shown directly in the browser as text, rather than the file save dialog being displayed. Our application allows the user to download both PDF and CSV files. The code we're using is:
HttpResponse response = HttpContext.Current.Response;
response.Clear();
response.AddHeader("Content-Disposition", "attachment;filename="theFilename.pdf"");
response.ContentType = "application/pdf";
response.BinaryWrite(MethodThatReturnsFileContents());
response.End();
This is called from the code-behind click event handler of a button server control. Where are we going wrong with this approach? Edit Following James' answer to this posting, the code I'm using now looks like this:
HttpResponse response = HttpContext.Current.Response;
response.ClearHeaders();
// Setting cache to NoCache was recommended, but doing so results in a security
// warning in IE6
//response.Cache.SetCacheability(HttpCacheability.NoCache);
response.AppendHeader("Content-Disposition", "attachment; filename="theFilename.pdf"");
response.ContentType = "application/pdf";
response.BinaryWrite(MethodThatReturnsFileContents());
response.Flush();
response.End();
However, I don't believe that any of the changes made will fix the issue.
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Sep 13, 2010
I'm trying to force a large (200+ MB) file to download that's on a remote server. The problem is that I can't use the "WriteFile()" function, since I'm not using a virtual path. Then, when I try:
Response.AppendHeader("content-disposition",
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