Exemplo n.º 1
0
        public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
        {
            string text = reader.GetString();

            if (EnumNameMapper <T> .TryGetValue(reader.GetString(), out T value))
            {
                return(value);
            }
            else
            {
                throw new JsonException($"Invalid enum value = {text}");
            }
        }
        /// <summary>
        /// Gets the enum value from EnumMemberAttribute's value.
        /// </summary>
        /// <typeparam name="TEnum">The type of enum.</typeparam>
        /// <param name="value">The EnumMemberAttribute's value.</param>
        /// <param name="ignoreCase">ignores the case when comparing values.</param>
        /// <returns>TEnum.</returns>
        /// <exception cref="ArgumentException">No XmlEnumAttribute code exists for type " + typeof(TEnum).ToString() + " corresponding to value of " + value</exception>
        public static TEnum ToEnum <TEnum>(this string value, bool ignoreCase = true) where TEnum : struct, Enum
        {
            // Try to parse it normally on the first try
            if (Enum.TryParse <TEnum>(value, ignoreCase, out var result))
            {
                return(result);
            }

            // Try with value from EnumMemberAttribute
            if (EnumNameMapper <TEnum> .TryGetValue(value, ignoreCase, out result))
            {
                return(result);
            }

            throw new ArgumentException($"Value '{value}' is not a valid enum name of '{typeof(TEnum)}' ({nameof(ignoreCase)}={ignoreCase}). Valid values are: {string.Join(", ", EnumNameMapper<TEnum>.GetNames())}.");
        }
 /// <summary>
 /// Gets the EnumMemberAttribute's value from the enum's value.
 /// </summary>
 /// <typeparam name="TEnum">The type of enum.</typeparam>
 /// <param name="value">The enum's value.</param>
 /// <returns>string.</returns>
 public static string ToEnumMemberValue <TEnum>(this TEnum value) where TEnum : struct, Enum
 {
     return(EnumNameMapper <TEnum> .GetName(value));
 }
Exemplo n.º 4
0
 public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
 {
     writer.WriteStringValue(EnumNameMapper <T> .GetName(value));
 }