String Helper for Url/Descriptions

StringHelper.cs

public class StringHelper
{
    public struct transform
    {
        public string UrlChar;
        public string DescChar;
    }
    public enum transformDirection
    {
        UrlToDescription,
        DescriptionToUrl
    }


    // Tranform invalid URL characters to Descriptive text Or vice versa
    public static string TransformUrlDescriptiveCharacters(string inputValue, transformDirection direction)
    {
        string returnValue = inputValue;

        List<transform> characterTransforms = new List<transform>()
        {
            new transform {UrlChar = "_", DescChar = "&" },
            new transform {UrlChar = "half", DescChar = "1/2" },
            new transform {UrlChar = "quarter", DescChar = "1/4" },
            new transform {UrlChar = "three eighths", DescChar = "3/8" },
            new transform {UrlChar = " inch", DescChar = "\"" }
        };

        foreach (var item in characterTransforms)
        {
            if (direction == transformDirection.UrlToDescription)
            {
                if (inputValue.Contains(item.UrlChar)) { inputValue = inputValue.Replace(item.UrlChar, item.DescChar); }
            }
            if (direction == transformDirection.DescriptionToUrl)
            {
                if (inputValue.Contains(item.DescChar)) { inputValue = inputValue.Replace(item.DescChar, item.UrlChar); }
            }
        }

        return inputValue;
    }

}