Question

I am getting the following error while uploading the file from my local drive.

The given path’s format is not supported.

The code is given.
Please tell me what changes I have to make.

 string file0 = MapPathReverse(FileUpload1.PostedFile.FileName);// Get virtual path
    string conversationFileSource = Server.MapPath(file0);
    StreamReader file = new StreamReader(conversationFileSource);

Answer 1

If you want to access the input stream of the uploaded file:

using (StreamReader reader = new StreamReader(FileUpload1.PostedFile.InputStream))
{
    ...
}

If you want to save the uploaded file on some folder on your server:

var uploadsFolder = Server.MapPath("~/uploads");
var file = Path.Combine(uploadsFolder, Path.GetFileName(FileUpload1.PostedFile.FileName));
FileUpload1.PostedFile.SaveAs(file);