enum ViewRule { Rule_16 = 16, Rule_17 = 17, Rule_18 = 18, Rule_19 = 19, Rule_20 = 20, Rule_21 = 21, Rule_22 = 22, Rule_23 = 23, Rule_24 = 24, Rule_25 = 25, Rule_26 = 26, Rule_27 = 27, Rule_28 = 28, Rule_29 = 29, Rule_30 = 30, Rule_31 = 31 };