Insert data in database

public SqlConnection connect()
        {
            SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=IMS;Integrated Security=True");
            con.Open();
            return con;
        }

        public void Closeconnect(SqlConnection con)
        {
            con.Close();
        }

private void btnSave_Click(object sender, EventArgs e)
        {
            string Query = "Insert into tblEnquiry values (@mem_no,@date,@name,@add,@gen,@city,@pin,@home,@mobile,@email,@dob,@exec,@interest,@contact,@name1,@tel1,@name2,@tel2)";
            SqlCommand cmdSave = new SqlCommand(Query, connect());
            cmdSave.Parameters.Add(new SqlParameter("@mem_no", txtMemNo.Text));
            cmdSave.Parameters.Add(new SqlParameter("@date", dtpEnquiryDate.Value));
            cmdSave.Parameters.Add(new SqlParameter("@name", txtName.Text));
            cmdSave.Parameters.Add(new SqlParameter("@add", txtAddress.Text));
            cmdSave.Parameters.Add(new SqlParameter("@gen", cbGender.Text));
            cmdSave.Parameters.Add(new SqlParameter("@city", txtCity.Text));
            cmdSave.Parameters.Add(new SqlParameter("@pin", txtPin.Text));
            cmdSave.Parameters.Add(new SqlParameter("@home", txtTelHome.Text));
            cmdSave.Parameters.Add(new SqlParameter("@mobile", txtTelMobile.Text));
            cmdSave.Parameters.Add(new SqlParameter("@email", txtEmailID.Text));
            cmdSave.Parameters.Add(new SqlParameter("@dob", dtpDOB.Value));
            cmdSave.Parameters.Add(new SqlParameter("@exec", cbExecutive.Text));
            cmdSave.Parameters.Add(new SqlParameter("@interest", cblInterest.Text));
            cmdSave.Parameters.Add(new SqlParameter("@contact", cblContact.Text));
            cmdSave.Parameters.Add(new SqlParameter("@name1", txtName1.Text));
            cmdSave.Parameters.Add(new SqlParameter("@tel1", txtTel1.Text));
            cmdSave.Parameters.Add(new SqlParameter("@name2", txtName2.Text));
            cmdSave.Parameters.Add(new SqlParameter("@tel2", txtTel2.Text));
            cmdSave.ExecuteNonQuery();
            MessageBox.Show("Record Saved Successfully");
            Closeconnect(connect());
        }