Jiqiu: How to pop up a file save dialog box on the C # web application page

rox4ia

Dear experts:
    When I click the "Download" button, how can I make it pop up a file save dialog box, just like the "Save As" format of a text document. There doesn't seem to be a SaveFile type control in the C # .net web application! !! !! !!

visiontl

When the hyperlink of your button points to a file (non-page and image format), the option to download and save as will appear when you click

苹果小刀

If it is downloaded, the browser will automatically pop up the "Save" dialog box!

hbwhpp

The upstairs makes sense
There are many controls to open the file dialog
There is a file control in html

ymooner

ASP.NET downloads a file directly instead of opening it in a browser

rox4ia

thanks Thank you all for your great help. Maybe I am not very clear.
It's like this: In the web application, I wrote a "download" button, when you click the button, you need to use the code to generate a dialog box to save the file, just like save, enter the file name and path in the dialog box, click ok will do. All I need is the file name and path entered by the user.
   The question is: how to generate a save dialog with code? It seems that such a dialog box cannot be directly generated in .NET!
  Suppose I want to write a saveas() function with a javascript script. This function can generate a "save file" dialog box. I save it as a saveas.js file. How can I embed this file in a C#.NET Web application? ? The event of my "download" button can directly call the saveas() function.

I included the file with <SCRIPT src="saveas.js" type="text/javascript"> </script> in the html source of the web program, and used the statement in the "download" event: this.Response.Write( "<script language ='javascript'>saveAs('saveas','download',true)</script>");, but there is still an error when calling: Missing object!
    Please help! Thanks a lot! ! !

wfchris

private void FileDownload(string FullFileName)
{
FileInfo DownloadFile = new FileInfo(FullFileName);
Response.Clear();
Response.ClearHeaders();
Response.Buffer=false;
Response.ContentType="application/octet-stream";
Response.AppendHeader("Content-Disposition","attachment;filename=" +HttpUtility.UrlEncode(DownloadFile.FullName,System.Text.Encoding.UTF8));
Response.AppendHeader("Content-Length",DownloadFile.Length.ToString());
Response.WriteFile(DownloadFile.FullName);
Response.Flush();
Response.End();
}

wfchris

Just add the above method directly to your program.
This is how I use it, try it,

rox4ia

Ok, it's solved, thank you brothers upstairs? The FileDownload() method is really good! ! ! ! ! ! ! ! ! ! ! ! !