GetAdjustmentRuleForTime() [1/2]

AdjustmentRule System.TimeZoneInfo.GetAdjustmentRuleForTime ( DateTime dateTime, bool dateTimeisUtc, out int? ruleIndex )

inlineprivate

Definition at line 1575 of file TimeZoneInfo.cs.

    {
        if (_adjustmentRules == null || _adjustmentRules.Length == 0)
        {
            ruleIndex = null;
            return null;
        }
        DateTime dateOnly = (dateTimeisUtc ? (dateTime + BaseUtcOffset).Date : dateTime.Date);
        int num = 0;
        int num2 = _adjustmentRules.Length - 1;
        while (num <= num2)
        {
            int num3 = num + (num2 - num >> 1);
            AdjustmentRule adjustmentRule = _adjustmentRules[num3];
            AdjustmentRule previousRule = ((num3 > 0) ? _adjustmentRules[num3 - 1] : adjustmentRule);
            int num4 = CompareAdjustmentRuleToDateTime(adjustmentRule, previousRule, dateTime, dateOnly, dateTimeisUtc);
            if (num4 == 0)
            {
                ruleIndex = num3;
                return adjustmentRule;
            }
            if (num4 < 0)
            {
                num = num3 + 1;
            }
            else
            {
                num2 = num3 - 1;
            }
        }
        ruleIndex = null;
        return null;
    }

References System.TimeZoneInfo._adjustmentRules, System.TimeZoneInfo.BaseUtcOffset, System.TimeZoneInfo.CompareAdjustmentRuleToDateTime(), and System.Runtime.Serialization.Dictionary.