Equals() [5/6]

static bool System.String.Equals ( string? a, string? b, StringComparison comparisonType )

inlinestatic

Definition at line 605 of file String.cs.

    {
        if ((object)a == b)
        {
            CheckStringComparison(comparisonType);
            return true;
        }
        if ((object)a == null || (object)b == null)
        {
            CheckStringComparison(comparisonType);
            return false;
        }
        switch (comparisonType)
        {
        case StringComparison.CurrentCulture:
        case StringComparison.CurrentCultureIgnoreCase:
            return CultureInfo.CurrentCulture.CompareInfo.Compare(a, b, GetCaseCompareOfComparisonCulture(comparisonType)) == 0;
        case StringComparison.InvariantCulture:
        case StringComparison.InvariantCultureIgnoreCase:
            return CompareInfo.Invariant.Compare(a, b, GetCaseCompareOfComparisonCulture(comparisonType)) == 0;
        case StringComparison.Ordinal:
            if (a.Length != b.Length)
            {
                return false;
            }
            return EqualsHelper(a, b);
        case StringComparison.OrdinalIgnoreCase:
            if (a.Length != b.Length)
            {
                return false;
            }
            return EqualsOrdinalIgnoreCaseNoLengthCheck(a, b);
        default:
            throw new ArgumentException(SR.NotSupported_StringComparison, "comparisonType");
        }
    }

References System.String.CheckStringComparison(), System.comparisonType, System.Globalization.CultureInfo.CurrentCulture, System.String.EqualsHelper(), System.String.EqualsOrdinalIgnoreCaseNoLengthCheck(), System.String.GetCaseCompareOfComparisonCulture(), System.Globalization.CompareInfo.Invariant, and System.SR.NotSupported_StringComparison.