update ms access check box column

  internal void updatestbInfo(string stbnumber, string stbname, int price, string purchasedate, string description, bool isactive)

       {

           cn.Close();

           cn.Open();

           cmd = null;

           cmd = new OleDbCommand("update STBINFO set  stbno=@stbno,stbname=@stbname,price=@price,purchasedate=@purchasedate,description=@description,isactive=@isactive where stbno=@stbno", cn);

           cmd.Parameters.AddWithValue("@stbno", stbnumber);

           cmd.Parameters.AddWithValue("@stbname", stbname);

           cmd.Parameters.AddWithValue("@price", price);

           cmd.Parameters.AddWithValue("@purchasedate", purchasedate);

           cmd.Parameters.AddWithValue("@isactive", isactive);

           cmd.Parameters.AddWithValue("@description", description);

           cmd.ExecuteNonQuery();

           MessageBox.Show(isactive.ToString());

           cn.Close();

       }