How do I use webclient for browser based mobile app

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In my web app, i use webclient class for preview document. But when i toggle (F12) to simulate mobile view (as i used bootstrap), my preview document does not work.
What should i do?

What I have tried:

This is my button click event which is working at web browser view. Means preview document is loaded.
But in mobile view, after button click , nothing happened and preview document is not loaded.

string FilePath = Server.MapPath(Path.Combine(folder,name));
            WebClient User = new WebClient();
            Byte[] FileBuffer = User.DownloadData(FilePath);
            if (FileBuffer != null)
            {
                Response.ContentType = "application/pdf";
                Response.AddHeader("content-length", FileBuffer.Length.ToString());
                Response.BinaryWrite(FileBuffer);
            }

Posted 29-Sep-20 16:50pm

octavia81

Updated 29-Sep-20 21:58pm

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Richard Deeming · Answer 1 · 2020-09-29T21:59:00

You're loading a file from the same server, so there's no need to use WebClient at all. Just use:

C#

string filePath = Server.MapPath(Path.Combine(folder, name));
Response.ContentType = "application/pdf";
Response.TransmitFile(filePath);

The issue of the file not appearing is nothing to do with your server code; it's a browser issue. Try loading the file on a real mobile device. If it still doesn't work, then there's a problem with your file.