protected void bind()
{
        
        DataSet st = new DataSet();
        string c = "Data Source=ACME;Initial Catalog=matri;User ID=acm;Password=acm";
        SqlConnection conn = new SqlConnection(c);
        conn.Open();
        SqlDataAdapter adp = new SqlDataAdapter("select * from regis", conn);
        adp.Fill(st);
        dg.DataSource = st;
        dg.DataBind();
        conn.Close();
}