How to delete file from server after download is finished using C# in ASP.NET

Hi nagaraju60,

Use try catch and check.

string fileName = "Test.doc";
string filePath = Server.MapPath("~/uploads/" + fileName);
string contentType = "application/vnd.ms-word";
if (System.IO.File.Exists(filePath))
{
    Response.Clear();
    Response.ContentType = contentType;
    Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
    Response.Charset = "";
    try
    {
        Response.WriteFile(filePath);
        Response.Flush();
        System.IO.File.Delete(filePath);
    }
    catch (Exception ex)
    {
        Response.Write(ex.Message);
        throw;
    }
    finally
    {
        Response.End();
    }
}
else
{
    Response.Write("File not exist.");
}

Screenshot