private string BuildSizeRangeField(int? lowerBoundBytes, int? upperBoundBytes)
{
var lowerBoundString = lowerBoundBytes.HasValue ? lowerBoundBytes.Value.ToString() : String.Empty;
var upperBoundString = upperBoundBytes.HasValue ? upperBoundBytes.Value.ToString() : String.Empty;
return BuildRangeString(lowerBoundString, upperBoundString);
}