public IReadOnlyList<Contingency> Matches {get;}

public void ValidateContingentValues(FeatureClass parcels, string zoningFieldName = "Zone", string taxCodeFieldName = "TaxCode")
{
    using (RowBuffer rowBuffer = parcels.CreateRowBuffer())
    {
        // Insert values in a row buffer
        rowBuffer[zoningFieldName] = "Business";
        rowBuffer[taxCodeFieldName] = "TaxB";

        // Validate contingency values of the parcels' row 
        ContingencyValidationResult contingencyValidationResult = parcels.ValidateContingencies(rowBuffer);

        // Valid contingencies
        IReadOnlyList<Contingency> matchedContingencies = contingencyValidationResult.Matches;
        if (matchedContingencies.Count > 0)
        {
            // Create a row with valid contingency values
            parcels.CreateRow(rowBuffer);
        }

        // Invalid contingencies
        IReadOnlyList<ContingencyViolation> violatedContingencies = contingencyValidationResult.Violations;
        foreach (ContingencyViolation contingencyViolation in violatedContingencies)
        {
            ContingencyViolationType violationType = contingencyViolation.Type;
            Contingency violatedContingency = contingencyViolation.Contingency;
        }
    }
}