File Upload Control Program in asp.net

using System;

usingSystem.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

usingSystem.Web.UI.WebControls;

public partial class PgFileUpload : System.Web.UI.Page

{

    protected void Page_Load(objectsender, EventArgs e)

    {

      //  Image1.ImageUrl = "~/Images/RealHome.jpg";

    }

    protected void btnImage_Click(objectsender, EventArgs e)

    {

        txtImage.Text = "~/Images/" + FileUpload1.FileName;//To get Name of File

        Response.Write(txtImage.Text);

        //To save Image in current physical storage

        //To get the path of current folder

        Response.Write(Server.MapPath(txtImage.Text));

        //To save Image in Images folder of Current Path

      

        FileUpload1.SaveAs(Server.MapPath (txtImage.Text));

        Response.Write("Image saved...........");

        Image1.ImageUrl = txtImage.Text;

      

    }

}