Retrieve enum value based on XmlEnumAttribute name value

Question

I need a Generic function to retrieve the name or value of an enum based on the XmlEnumAttribute \"Name\" property of the enum. For example I have the following enum define

Answer 1

Here's a variation that generates a dictionary from the enum, allowing you to potentially cache the reflection part of it should you need to use it a lot.

/// 

/// Generates a dictionary allowing you to get the csharp enum value
/// from the string value in the matching XmlEnumAttribute.
/// You need this to be able to dynamically set entries from a xsd:enumeration
/// when you've used xsd.exe to generate a .cs from the xsd.
/// https://msdn.microsoft.com/en-us/library/x6c1kb0s(v=vs.110).aspx
/// 
/// The xml enum type you want the mapping for
/// Mapping dictionary from attribute values (key) to the actual enum values
/// T must be an enum
private static Dictionary GetEnumMap() where T : struct, IConvertible
{
        if (!typeof(T).IsEnum)
        {
                throw new ArgumentException("T must be an enum");
        }
        var members = typeof(T).GetMembers();
        var map = new Dictionary();
        foreach (var member in members)
        {
                var enumAttrib = member.GetCustomAttributes(typeof(XmlEnumAttribute), false).FirstOrDefault() as XmlEnumAttribute;
                if (enumAttrib == null)
                {
                        continue;
                }
                var xmlEnumValue = enumAttrib.Name;
                var enumVal = ((FieldInfo)member).GetRawConstantValue();
                map.Add(xmlEnumValue, (T)enumVal);
        }
        return map;
}

usage:

var map = GetEnumMap();
return map["02"]; // returns Currency.EUR