data insertion issue

sir, i m trying this code but it is not doing anything no data is inserting into table and label is not changing its text, what to do now? 



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data.SqlClient;

using System.Configuration;

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

{

//{   // string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

//// SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

////     protected void Page_Load(object sender, EventArgs e)

////  {

//// con.Open();

////  }

////  protected void Button1_Click(object sender, EventArgs e)

//// {

//// //SqlConnection con = new SqlConnection(connStr);

//// SqlCommand cmd = new SqlCommand("insert into profile values('" + name.Text+ "','" + fname.Text+ "','" + ep.Text+ "','" + cls.Text+ "','" + semester.Text+ "')", con);

//////con.Open();

//// cmd.ExecuteNonQuery();

//////cm.ExecuteNonQuery();

////// con.Close();

    

//    SqlConnection con=new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

//    protected void Page_Load(object sender, EventArgs e)

//    {

//        con.Open();

//    }

//    protected void Button1_Click(object sender, EventArgs e)

//    {

//        //SqlCommand cmd = new SqlCommand("insert into profile(studentname,fathername,ep1,class,semester,courseId) values('" +TextBox1.Text + "','" +TextBox2.Text+ "', '" +TextBox3.Text+ "','"+s1+"')", con);

//        //cmd.ExecuteNonQuery();

//        //con.Close();

//        //Label1.Visible = true;

//        //Label1.Text = "Registered Successfully";

//        //TextBox1.Text = "";

//        //TextBox2.Text = "";

//        //TextBox3. Text = "";

        

//string s1 = string.Empty; 

//foreach (ListItem item in this.CheckBoxList1.Items)

//{ if (item.Selected)

// { s1 = item.ToString();

// SqlCommand com = new SqlCommand("insert into profile(studentname,fathername,ep1,class,semester,courseId) values('" + TextBox1.Text + "','" + TextBox2.Text + "', '" + TextBox3.Text + "','" + s1 + "')", con); 

//    com.CommandType = System.Data.CommandType.Text;

//    com.ExecuteNonQuery();

////com.ExecuteNonQuery();

//} }

//Response.Write("Inserted Successfully"); } } 

    protected void Button1_Click(object sender, EventArgs e)

    {

        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

        string s1 = string.Empty;

        foreach (ListItem item in this.CheckBoxList1.Items)

        {

            if (item.Selected)

            {

                s1 = item.ToString();

                SqlCommand cmd = new SqlCommand(@"INSERT INTO PROFILE(studentname,fathername,ep1,class,semester,courseId) VALUES (@STUDNAME,@PARNTNAME,@EP1NAME,@CLASS,@SEMESTER,@COURSEID)", conn);

                cmd.Parameters.AddWithValue("@STUDNAME", TextBox1.Text);

                cmd.Parameters.AddWithValue("@PARNTNAME", TextBox2.Text);

                cmd.Parameters.AddWithValue("@EP1NAME", TextBox3.Text);

                cmd.Parameters.AddWithValue("@CLASS", TextBox4.Text);

                cmd.Parameters.AddWithValue("@SEMESTER", TextBox5.Text);

                cmd.Parameters.AddWithValue("@COURSEID", s1);

                conn.Open();

                Int32 rowsInserted = cmd.ExecuteNonQuery();

                conn.Close();

                if (rowsInserted > 0)

                {

                    Label1.Visible = true;

                    Label1.Text = "Registered Successful";

                    TextBox1.Text = string.Empty;

                    TextBox2.Text = string.Empty;

                    TextBox3.Text = string.Empty;

                    TextBox4.Text = string.Empty;

                    TextBox5.Text = string.Empty;

                }

                else

                {

                    Label1.Visible = true;

                    Label1.Text = "Registration Failed";

                }

            }

        }

    }

            

        

        private void Form1_Load(object sender, EventArgs e)

        {

            Label1.Visible = false;

        }

}