i upload the photo in asp.net but i am getting the error

Question

i upload the photo in asp.net but i am getting the error as Could not find a part of the path

Design as follows

 name textbox

address textbox

image fileupload

code as follows

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

{

    SqlConnection con;

    string s1;

    string path;

    //SqlConnection con = new SqlConnection();

    SqlCommand com = new SqlCommand();

    SqlDataAdapter da;

    DataTable dt;

    int id;

    string name;

    string address;

    string image;

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

        }

    }

    private void bindgrid()

    {

        con = new SqlConnection("Server=(local);initial catalog=master;Trusted_Connection=True");

        con.Open();

        da = new SqlDataAdapter("select * from photo", con);

        dt = new DataTable();

        da.Fill(dt);

        da.Dispose();

        //GridView1.DataSource = dt;

        //GridView1.DataBind();

        con.Close();

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        con = new SqlConnection("Server=(local);initial catalog=master;Trusted_Connection=True");

   

        if (FileUpload1.PostedFile.ContentLength > 0)

        {

            s1 = Path.GetFileName(FileUpload1.FileName);

            path = Server.MapPath("images") + "/" + s1;

            FileUpload1.SaveAs(path);

        }

        con.Open();

        SqlCommand com = new SqlCommand("insert_employee", con);

        com.CommandType = CommandType.StoredProcedure;

        com.Connection = con;

        com.Parameters.AddWithValue("@name", txt_name.Text);

        com.Parameters.AddWithValue("@address", txt_Address.Text);

        com.Parameters.AddWithValue("@image", s1);

        com.ExecuteNonQuery();

        bindgrid();

        con.Close();

    }

}

please help me.what is the error and reply me.