Develop Reference

Save file in selected location

On site (ASP.NET) i have table with items. Every item has link to specific pdf. This pdf i generate from binary data that are saved in database. So realy, i don't have path to pdf file.
When i click on link, i want to download file. And this functionallity work fine.
But i download file to default location that use browser (By default it's C:\Users\Admin\Documents)
What should i do to make browser show save dialog where user can chose destination path for pdf?
Code to generate pdf file :
private void ProcessFile(byte[] file, string fileName)
{
Response.Clear();
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition",
string.Format("attachment;filename=\"{0}\"", fileName));
Response.BinaryWrite(file);
Response.Flush();
Response.End();
}
About my code : i'm going to rewrite a bit it according to this post

Cannot redirect the page after exporting and saving the excel file

ExportToCSVFile(DtExcel);
Response.ContentType = "Application/x-msexcel";
Response.AddHeader("content-disposition", "attachment;filename=" + GetCustomerUserID() + "_UserList.csv");
Response.Write(ExportToCSVFile(DtExcel));
// Context.ApplicationInstance.CompleteRequest();
Response.Redirect("Redirect_Url_ExportToExcel.aspx", false);
// Context.ApplicationInstance.CompleteRequest();
// Response.End();
hi
I am exporting and saving the excel file. After saving the file the page is still doing some processing. To abort that processing i need to redirect the page. If I' redirect the page the SaveFileDilaog doesn't appear. If it appears at that time the page does not redirect. Please give some solution.

Response.BinaryWrite calls the ASPX page twice

I am trying to open a file in the browser using BinaryWriter. This causes the a dialog window to open and prompt the user to save or open the file. That behavior is fine; however, if I select open, the aspx page is called again and after a long wait the file finally opens.
I set the ContentType
Response.BinaryWrite(binary);
Response.End();
Repsonse.Close();
This behavior only occurs with excel and word files.
Browser IE8

A substitute way of doing the same. You can check it out:
FileInfo fileInfo = new FileInfo(yourFilePath);
context.Response.Clear();
context.Response.ContentType = contentType; //Set the contentType
context.Response.AddHeader("content-disposition", "attachment; filename=" + Path.GetFilename(yourFilePath));
context.Response.AddHeader("Content-Length", fileInfo.Length.ToString());
context.Response.TransmitFile(yourFilePath);
Hope this will help

Problem with Save As dialog in IE 7,8 in ASP.NET

i'm trying to write code that download a file that located on the server.
but the save as dialog wont open in IE.
i tried response.redirect, i tried
Response.Clear();
Response.ContentType = "text/csv";
Response.AddHeader("Content-Disposition", "attachment; filename=" + fileNameDisplay);
Response.WriteFile(Server.MapPath(pathName + fileNameUnique));
Response.Flush();
Response.End();
every thing works on firefox and chrome , but not in internet explorer.
i know that there is a security option for this in security ---> custom level ---> Downloads ---> automatic prompting for file downloads , that is always in disable mode and i need to switch it to enable in order it to work, but i don't wont that my users deal with this.
how do i overcome this 'security problem' ?
is there any right way to deal with download files ?
what is the right code to do that ?
thank you,
gadym

var info = new FileInfo(path);
Response.Clear();
Response.AppendHeader("Content-Disposition", String.Concat("attachment; filename=", info.Name));
Response.AppendHeader("Content-Length", info.Length.ToString(System.Globalization.CultureInfo.InvariantCulture));
Response.AppendHeader("Content-Transfer-Encoding", "binary");
Response.ContentType = "text/csv";
Response.WriteFile(info.FullName, true);
Response.End();

You need explicitly tell that it is not opened content,
add following headers:
Response.AppendHeader("Content-Disposition", "attachment; filename=" + fname);
Response.AppendHeader("Content-Transfer-Encoding", "binary");
Also it is strongly recommend to set explicit file length
Response.AppendHeader("Content-Length", responseContentLength.ToString());

abatishchev, thank you for helping me.
i found a soultion to my problem.
I created a dialog window (let's call it 'DownloadWindow') which holds an empty 'A HREF' tag.
(it's shows - 'click here To Download')
after i click a download (EXCEL/CSV icon) button on my default page (which creates my file
dynamicly),
i load the dialog window ('DownloadWindow') and then i'm repleacing the 'a href' link to the file url i created earlier so my users can download it from my server.
Now, Internet explorer did pop up the open/save/cancel dialog box.
it's a bit annoying but it's solved my porblem.

I had the same problem when my link for file download was made using:
<a href="DownloadFile.aspx">
<input type="image" src="~/virtual/path/to/image.png" runat="server" />
</a>
The problem was gone when i changed it to:
<a href="DownloadFile.aspx">
<img src="~/virtual/path/to/image.png" runat="server" />
</a>

Link to retrieve pdf file from DB- in asp.net

I have retrieved the pdf file from Database and linked it to a "a href" tag to open pdf file using link. Now I want to give the open/save dialog box before a pdf file opened . - in javascript(by using onclick event in "a" tag to call the javascript)

You have to set the content-disposition header using C# to get this behavior in a browser.
Read this for more info
How do I prompt a "Save As" dialog for an accepted mime type?
Downloading a File with a Save As Dialog in ASP.NET
Example
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
Response.AddHeader("Content-Length", targetFile.Length.ToString);
Response.ContentType = "application/pdf";
Response.WriteFile(targetFile.FullName);