Please help me. My update query does not work

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

public partial class profile : System.Web.UI.Page
{
    SqlDataReader dr;
    SqlConnection con = new SqlConnection(@"Data Source=MAY-PC\SQLEXPRESS;Initial Catalog=demo;Integrated Security=True");
    protected void Page_Load(object sender, EventArgs e)
    {
        pname.Text = Session["userid"].ToString();
        read();

    }
    protected void savebtn_Click(object sender, ImageClickEventArgs e)
    {
       
        //int imagefilelenth = FileUpload1.PostedFile.ContentLength;
       // byte[] imgarray = new byte[imagefilelenth];
       // HttpPostedFile image = FileUpload1.PostedFile;
       //image.InputStream.Read(imgarray, 0, imagefilelenth);

        SqlCommand cmd = new SqlCommand("[update]", con);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@email", pemail.Text.ToString());
        cmd.Parameters.AddWithValue("@dob", pdob.Text.ToString());
        cmd.Parameters.AddWithValue("@gender", pgender.Text.ToString());
        cmd.Parameters.AddWithValue("@city", city.Text.ToString());
        cmd.Parameters.AddWithValue("@state", state.Text.ToString());
        cmd.Parameters.AddWithValue("@country", country.Text.ToString());
        cmd.Parameters.AddWithValue("@about", about.Text.ToString());
        cmd.Parameters.AddWithValue("@books", books.Text.ToString());
        cmd.Parameters.AddWithValue("@qualification", qualification.Text.ToString());
        cmd.Parameters.AddWithValue("@number", number.Text.ToString());
        //cmd.Parameters.AddWithValue("@image",imgarray);
        cmd.Parameters.AddWithValue("@username", pname.Text.ToString());
        cmd.Parameters.AddWithValue("@designation", designation.Text.ToString());
        cmd.Parameters.AddWithValue("@interest", interest.Text.ToString());
        con.Open();
        cmd.ExecuteNonQuery();
        con.Close();
                        
                                        
    }
    protected void cancelbtn_Click(object sender, ImageClickEventArgs e)
    {
        Response.Redirect("viewprofile1.aspx");
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (FileUpload1.HasFile)
        {

            string path = "~/imguplod/" + (FileUpload1.FileName);
            FileUpload1.SaveAs(Server.MapPath(path));
            Image1.ImageUrl = path;
            Session["image"] = (FileUpload1.FileName);

        }
    }

    private void read()
    {
        SqlCommand cmd = new SqlCommand("[select]", con);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@username", pname.Text.ToString());
        con.Open();
        dr = cmd.ExecuteReader();

       
        if (dr != null && dr.HasRows)
        {

           dr.Read();
        
        {
        pname.Text = (Convert.ToString(dr["username"]));
        pdob.Text = (Convert.ToString(dr["dob"]));
        pemail.Text = (Convert.ToString(dr["email"]));
        pgender.Text = (Convert.ToString(dr["gender"]));
        city.Text = (Convert.ToString(dr["city"]));
        state.Text = (Convert.ToString(dr["state"]));
        country.Text = (Convert.ToString(dr["country"]));
        designation.Text = (Convert.ToString(dr["designation"]));
        qualification.Text = (Convert.ToString(dr["qualification"]));
        about.Text = (Convert.ToString(dr["about"]));
        interest.Text = (Convert.ToString(dr["interest"]));
        books.Text = (Convert.ToString(dr["books"]));        
        con.Close();
        }
        }
         else 
        {
        pname.Text = Session["userid"].ToString();
        pemail.Text = Session["email"].ToString();
        pgender.Text = Session["gender"].ToString();
        pdob.Text = Session["dob"].ToString();
        }
    }
    
}