C# camel case coverter

CamelCaseConverter.cs

        public static string ToCamelCase(string text)
        {
            if (text != null)
            {
                var upperCount = 0;
                while (upperCount < text.Length && char.IsUpper(text, upperCount))
                {
                    upperCount++;
                }
                if (upperCount > 1 && upperCount < text.Length && char.IsLower(text, upperCount))
                {
                    upperCount--;
                }
                if (upperCount > 0)
                {
                    text = text.Substring(0, upperCount).ToLowerInvariant() + text.Substring(upperCount);
                }
            }
            return text;
        }