auto fill text box

Check the code and change accordingly
public void txtChanged(object sender, EventArgs e)
{
        SqlConnection SqlCnn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"]);
        SqlCommand SqlCmd = new SqlCommand();
        SqlCmd.CommandType = CommandType.Text;
        SqlCmd.Connection = SqlCnn;
        SqlCnn.Open();
        SqlCmd.CommandText = "select * from table where name=@name";
        SqlParameter name1 = new SqlParameter("@name", SqlDbType.Int);
        name1.Value = DataBaseIDp;
        SqlCmd.Parameters.Add(name1);

        SqlDataReader Sqldr = SqlCmd.ExecuteReader();
        while (Sqldr.Read())
        {
            addresstextbox.Text=Sqldr["address"].ToString();
            phonetext.Text=Sqldr["phone"].ToString();
            emailtext.Text=Sqldr["email"].ToString();
SqlCnn.close();

}