/// <summary>
/// This method is used for serialization of enum field.
/// </summary>
/// <param name="writer"> json writer.</param>
/// <param name="value"> Type of object being serialized. </param>
/// <param name="serializer"> json serializer. </param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
FieldInfo[] fields = value.GetType().GetFields();
foreach (var field in fields)
{
if (String.Compare(field.Name, value.ToString(), StringComparison.Ordinal) == 0)
{
object[] attr = field.GetCustomAttributes(typeof(System.Xml.Serialization.XmlEnumAttribute), false);
if (attr.Length > 0)
{
System.Xml.Serialization.XmlEnumAttribute xmlAttribute = (System.Xml.Serialization.XmlEnumAttribute)attr[0];
serializer.Serialize(writer, xmlAttribute.Name);
return;
}
serializer.Serialize(writer, field.Name);
return;
}
}
}
public static KeyValuePair <string, TEnum>[] GetEnumValues <TEnum>() where TEnum : struct
{
Type t = typeof(TEnum);
var names = Enum.GetNames(t);
Func <string, string> valueGetter =
(name) =>
{
TEnum enumValue = (TEnum)Enum.Parse(t, name);
string ret = ((int)(object)enumValue).ToString();
System.Reflection.FieldInfo fieldInfo = t.GetField(name);
System.Xml.Serialization.XmlEnumAttribute attr = fieldInfo.GetCustomAttributes(typeof(System.Xml.Serialization.XmlEnumAttribute), false).SingleOrDefault() as System.Xml.Serialization.XmlEnumAttribute;
if (attr != null)
{
ret = attr.Name;
}
return(ret);
};
return((from name in names select new KeyValuePair <string, TEnum>(valueGetter(name), (TEnum)Enum.Parse(t, name))).ToArray());
}
public static string GetXmlEnumAttributeValue(this Enum enumValue)
{
string enumStringValue;
if (m_EnumValues.TryGetValue(enumValue, out enumStringValue))
{
return(enumStringValue);
}
System.Reflection.FieldInfo fieldInfo = enumValue.GetType().GetField(enumValue.ToString());
System.Xml.Serialization.XmlEnumAttribute xmlEnumAttribute = Attribute.GetCustomAttribute(fieldInfo, typeof(System.Xml.Serialization.XmlEnumAttribute)) as System.Xml.Serialization.XmlEnumAttribute;
if (xmlEnumAttribute != null)
{
enumStringValue = xmlEnumAttribute.Name;
m_EnumValues.Add(enumValue, enumStringValue);
}
else
{
enumStringValue = enumValue.ToString();
}
return(enumStringValue);
}
public static string ToXmlEnumString <TEnum>(TEnum value) where TEnum : struct, IConvertible
{
Type enumType = typeof(TEnum);
if (!enumType.IsEnum)
{
return(null);
}
System.Reflection.MemberInfo member = enumType.GetMember(value.ToString()).FirstOrDefault();
if (member == null)
{
return(null);
}
System.Xml.Serialization.XmlEnumAttribute xmlEnumAttribute = member.GetCustomAttributes(false).OfType <System.Xml.Serialization.XmlEnumAttribute>().FirstOrDefault();
if (xmlEnumAttribute == null)
{
return(member.Name);
}
return(xmlEnumAttribute.Name);
}
/// <summary>
/// This method is used for deserialization of enum field.
/// </summary>
/// <param name="reader"> json reader object. </param>
/// <param name="objectType"> Type of object being serialized. </param>
/// <param name="existingValue"> existing value. </param>
/// <param name="serializer"> json serializer. </param>
/// <returns> returns an object </returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
FieldInfo[] fields = objectType.GetFields();
foreach (var field in fields)
{
object[] attr = field.GetCustomAttributes(typeof(System.Xml.Serialization.XmlEnumAttribute), false);
if (attr.Length > 0)
{
foreach (var attrItem in attr)
{
if (attrItem.GetType() == typeof(System.Xml.Serialization.XmlEnumAttribute))
{
System.Xml.Serialization.XmlEnumAttribute xmlAttribute = (System.Xml.Serialization.XmlEnumAttribute)attr[0];
if (String.Compare(xmlAttribute.Name, reader.Value.ToString(), StringComparison.Ordinal) == 0)
{
return(Enum.Parse(objectType, field.Name));
}
}
}
}
}
return(Enum.Parse(objectType, reader.Value.ToString()));
}
