ASP.NET

protected void uploadFile()<br />
    {<br />
        String projectID = (String)Session["projId"];<br />
        //change the file name<br />
        if (!FileUpload.FileName.Equals(""))<br />
        {<br />
            // Create a new folder in Docs folder (folder name = projectID)<br />
            System.IO.Directory.CreateDirectory(Server.MapPath("Docs/") + projectID);<br />
<br />
            // Save the file into the new folder.<br />
            FileUpload.PostedFile.SaveAs(Server.MapPath("Docs/" + projectID + "/" + FileUpload.FileName));<br />
            lblFile.Text = FileUpload.FileName + " is uploaded!";<br />
            lblFile.Visible = true;<br />
<br />
        }<br />
    }//end of method

protected void btnLink_OnClientClick(object sender, EventArgs e)<br />
{<br />
   String projectID = (String)Session["projId"];<br />
   String file1 = System.IO.Path.GetFileName(Server.MapPath("Docs/" + pid + "/"));<br />
}