Multiple checkbox insert using Asp.net?

Hey guys,

 This blogs we explain how to insert multiple selected checkbox value into database using asp.net.

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["123"].ConnectionString);

    protected void btnSubmit_Click(object sender, EventArgs e)

    {

       string checkit = "";

       

       for (int i = 0; i < chk1.Items.Count - 1; i++)

       {

           if (chk1.Items[i].Selected == true)

           {

               checkit = checkit + chk1.Items[i].Text + ",";

           }

       }

      

        try

        {

            SqlCommand cmd = new SqlCommand();

            string ins;

            ins = "Insert into checkme values('" + txtId.Text + "', '" + checkit + "')";

            cmd = new SqlCommand(ins, con);

            con.Open();

            cmd.ExecuteNonQuery();

            con.Close();

            lblMsg.Text = "Successfully insert data";

        }

        catch (Exception er)

        {

            lblMsg.Text = er.Message;

        }

   

    }

}