Create Custom Application Block Using .NET Enterprise Library

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Practices.EnterpriseLibrary.Common;
using Microsoft.Practices.ObjectBuilder;
using Project.Practice.DB;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        using (IDBProvider dbProvider = DBFactory.CreateProvider())
        {
            Response.Write(dbProvider.UploadFile("abc"));
        }

        using (IDBProvider dbProvider = DBFactory.CreateProvider("CustomFilePath"))
        { 
            Response.Write(dbProvider.UploadFile("xyz"));
        }

    }
}