Code
To delete a file on server you can use code like this


[ C# ] // We need this namespaceusing System.IO; public partial class _Default : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {        string FileToDelete;         // Set full path to file         FileToDelete = Server.MapPath("~/Files/SomeFile.txt");        // Delete a file        File.Delete(FileToDelete);    } }