i got through this, but i want to update the values of a paticular person who loged in..
just look a this codding
protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection("user id=sa;password=vubrain;database=raghu;data source=vubrain4");
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "update userlogin set loginname='"+t5.Text+"',loginaddress='"+tb1.Text+"' where loginuser=loginuser";
con.Open();
cmd.ExecuteNonQuery();
con.Close();
}
for the above codeding i am able to update all the member in the table, but i want only to update the paticular member who loged in
thank you
Unsolved 
