Upload and Download Files with SQL Server in ASP.NET

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using ASPNetFileUpDownLoad.Utilities;

namespace ASPNetFileUpDownLoad
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (! IsPostBack)
            {
                DataTable fileList = FileUtilities.GetFileList();
                gvFiles.DataSource = fileList;
                gvFiles.DataBind();
            }
        }

        protected void btnUpload_Click(object sender, EventArgs e)
        {
            // Although I put only one http file control on the aspx page,
            // the following code can handle multiple file controls in a single aspx page.
            HttpFileCollection files = Request.Files;
            foreach (string fileTagName in files)
            {
                HttpPostedFile file = Request.Files[fileTagName];
                if (file.ContentLength > 0)
                {
                    // Due to the limit of the max for a int type, the largest file can be
                    // uploaded is 2147483647, which is very large anyway.
                    int size = file.ContentLength;
                    string name = file.FileName;
                    int position = name.LastIndexOf("\\");
                    name = name.Substring(position + 1);
                    string contentType = file.ContentType;
                    byte[] fileData = new byte[size];
                    file.InputStream.Read(fileData, 0, size);

                    FileUtilities.SaveFile(name, contentType, size, fileData);
                }                
            }

            DataTable fileList = FileUtilities.GetFileList();
            gvFiles.DataSource = fileList;
            gvFiles.DataBind();
        }
    }
}