try
    {
        using (SqlConnection connection =
            new SqlConnection(connectionString))
        {
            SqlCommand command = 
                new SqlCommand("AddToAccount", connection);
            command.CommandType = CommandType.StoredProcedure;
 
 
            command.Parameters.AddWithValue("id", id);
            command.Parameters.AddWithValue("value", value);
 
 
            connection.Open();
            command.ExecuteNonQuery();
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }

strConn= "data source=compname;initial catalog=имя базы;user id=имя пользователя;password=пароль;Connect Timeout=30";




SqlConnection myConnection = new SqlConnection (strConn);
      myConnection.Open ();
      try 
      {
        SqlCommand command = new SqlCommand("WriteLog", myConnection);
        command.CommandType = CommandType.StoredProcedure;

        SqlParameter paramErr;
        paramErr = command.Parameters.Add("@ErrDescr", SqlDbType.VarChar,  3000 );
        paramErr.Value = "";
        paramErr.Direction = ParameterDirection.Output;

               command.ExecuteNonQuery();
      } catch (Exception exc) {
        ErrMsg += " WriteLog :" + exc.Message + "<br/>";
      } finally {
        myConnection.Close();
      }