sending datagrid as mail message

using System.Text;
using System.IO;
using System.Net.Mail;


public void bindgrid()
{
sqlcom = new SqlCommand("select * from viewcart", sqlcon);
ds = new DataSet();
ds.Load(sqlcom.ExecuteReader(), LoadOption.OverwriteChanges, "temp");
datagrid.DataSource = ds;
datagrid.DataBind();
sb = new StringBuilder();
sw = new StringWriter(sb);
htmlwr = new Html32TextWriter(sw);
datagrid.RenderControl(htmlwr);
ltlHTMLOutput.Text = sb.ToString();
MailMessage mess = new MailMessage("karthick@webindia.com", "karthick@webindia.com", "Email Test", sb.ToString());
mess.IsBodyHtml = true;
SmtpClient obj = new SmtpClient("192.168.0.101");
obj.Send(mess);

}