CryptoExchange.Net.ArrayPropertyAttribute - 10 examples found

using System;

namespace Provausio.Parsing
{
    [AttributeUsage(AttributeTargets.Property)]
    public class ArrayPropertyAttribute : Attribute
    {

        /// <summary>
        /// Gets or sets the index from which the property will obtain its value in the source array.
        /// </summary>
        /// <value>
        /// The index.
        /// </value>
        public int Index { get; set; }

        /// <summary>
        /// Initializes a new instance of the <see cref="ArrayPropertyAttribute"/> class.
        /// </summary>
        /// <param name="index">The index.</param>
        public ArrayPropertyAttribute(int index)
        {
            Index = index;
        }
    }
}

Project:AVS.CoreLib File:ArrayConverter.cs Examples:5

        public override bool CanConvert(Type objectType)
        {
            return true;
        }


        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            if (objectType == typeof(JToken))
                return JToken.Load(reader);

            var result = Activator.CreateInstance(objectType);
            var arr = JArray.Load(reader);
            return ParseObject(arr, result, objectType);
        }


        private static object ParseObject(JArray arr, object result, Type objectType)
        {
            foreach (var property in objectType.GetProperties())
            {
                var attribute =
                    (ArrayPropertyAttribute)property.GetCustomAttribute(typeof(ArrayPropertyAttribute));
                if (attribute == null)
                    continue;

                if (attribute.Index >= arr.Count)
                    continue;

                if (property.PropertyType.BaseType == typeof(Array))
                {
                    var objType = property.PropertyType.GetElementType();
                    var innerArray = (JArray)arr[attribute.Index];
                    var count = 0;
                    if (innerArray.Count == 0)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 0 });
                        property.SetValue(result, arrayResult);
                    }
                    else if (innerArray[0].Type == JTokenType.Array)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { innerArray.Count });
                        foreach (var obj in innerArray)
                        {
                            var innerObj = Activator.CreateInstance(objType);
                            arrayResult[count] = ParseObject((JArray)obj, innerObj, objType);
                            count++;
                        }
                        property.SetValue(result, arrayResult);
                    }
                    else
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 1 });
                        var innerObj = Activator.CreateInstance(objType);
                        arrayResult[0] = ParseObject(innerArray, innerObj, objType);
                        property.SetValue(result, arrayResult);
                    }
                    continue;
                }

                var converterAttribute = (JsonConverterAttribute)property.GetCustomAttribute(typeof(JsonConverterAttribute)) ?? (JsonConverterAttribute)property.PropertyType.GetCustomAttribute(typeof(JsonConverterAttribute));
                var value = converterAttribute != null ? arr[attribute.Index].ToObject(property.PropertyType, new JsonSerializer { Converters = { (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType) } }) : arr[attribute.Index];

                if (value != null && property.PropertyType.IsInstanceOfType(value))
                    property.SetValue(result, value);
                else
                {
                    if (value is JToken token)
                        if (token.Type == JTokenType.Null)
                            value = null;

                    if ((property.PropertyType == typeof(decimal)
                     || property.PropertyType == typeof(decimal?))
                     && (value != null && value.ToString().Contains("e")))
                    {
                        if (decimal.TryParse(value.ToString(), NumberStyles.Float, CultureInfo.InvariantCulture, out var dec))
                            property.SetValue(result, dec);
                    }
                    else
                    {
                        property.SetValue(result, value == null ? null : Convert.ChangeType(value, property.PropertyType));
                    }
                }
            }
            return result;
        }


        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            writer.WriteStartArray();
            var type = value.GetType();
            var boolType = typeof(bool);
            var props = type.GetProperties();
            var ordered = props.OrderBy(p => p.GetCustomAttribute<ArrayPropertyAttribute>()?.Index);
            var last = -1;
            foreach (var prop in ordered)
            {
                var arrayProp = prop.GetCustomAttribute<ArrayPropertyAttribute>();
                if (arrayProp == null)
                    continue;

                if (arrayProp.Index == last)
                    continue;

                var shouldSerializeName = "ShouldSerialize" + prop.Name;
                var mi = type.GetMethod(shouldSerializeName);
                if (mi != null && mi.ReturnType == boolType)
                {
                    bool shouldSerialize = (bool)mi.Invoke(value, new object[] { });
                    if (shouldSerialize == false)
                        continue;
                }

                while (arrayProp.Index != last + 1)
                {
                    writer.WriteValue((string)null);
                    last += 1;
                }

                last = arrayProp.Index;
                var converterAttribute = (JsonConverterAttribute)prop.GetCustomAttribute(typeof(JsonConverterAttribute));
                if (converterAttribute != null)
                    writer.WriteRawValue(JsonConvert.SerializeObject(prop.GetValue(value), (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType)));
                else if (!IsSimple(prop.PropertyType))
                    serializer.Serialize(writer, prop.GetValue(value));
                else
                    writer.WriteValue(prop.GetValue(value));
            }
            writer.WriteEndArray();
        }


        private static bool IsSimple(Type type)
        {
            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
                // nullable type, check if the nested type is simple.
                return IsSimple(type.GetGenericArguments()[0]);
            }
            return type.IsPrimitive
              || type.IsEnum
              || type == typeof(string)
              || type == typeof(decimal);
        }

Project:P2pB2b.Net File:GenericArrayConverter.cs Examples:5

        /// <inheritdoc />
        public override bool CanConvert(Type objectType)
        {
            return true;
        }


        /// <inheritdoc />
        public override object? ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            if (objectType == typeof(JToken))
                return JToken.Load(reader);

            var result = Activator.CreateInstance(objectType);
            var arr = JArray.Load(reader);
            return ParseObject(arr, result, objectType);
        }


        private static object? ParseObject(JArray arr, object result, Type objectType)
        {
            foreach (var property in objectType.GetProperties(BindingFlags.NonPublic | BindingFlags.Public
        | BindingFlags.Instance | BindingFlags.Static))
            {
                var attribute =
                    (ArrayPropertyAttribute)property.GetCustomAttribute(typeof(ArrayPropertyAttribute));
                if (attribute == null)
                    continue;

                if (attribute.Index >= arr.Count)
                    continue;

                if (property.PropertyType.BaseType == typeof(Array))
                {
                    var objType = property.PropertyType.GetElementType();
                    var innerArray = (JArray)arr[attribute.Index];
                    var count = 0;
                    if (innerArray.Count == 0)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 0 });
                        property.SetValue(result, arrayResult);
                    }
                    else if (innerArray[0].Type == JTokenType.Array)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { innerArray.Count });
                        foreach (var obj in innerArray)
                        {
                            var innerObj = Activator.CreateInstance(objType);
                            arrayResult[count] = ParseObject((JArray)obj, innerObj, objType);
                            count++;
                        }
                        property.SetValue(result, arrayResult);
                    }
                    else
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 1 });
                        var innerObj = Activator.CreateInstance(objType);
                        arrayResult[0] = ParseObject(innerArray, innerObj, objType);
                        property.SetValue(result, arrayResult);
                    }
                    continue;
                }
                JToken token1 = arr[attribute.Index];

                if (token1.Type == JTokenType.Object||token1.Type==JTokenType.Array)
                {
                    var temp = JsonConvert.DeserializeObject(token1.ToString(), property.PropertyType);
                    var newInstanse = Activator.CreateInstance(property.PropertyType);
                    property.SetValue(result, temp ?? newInstanse);
                    continue;
                }
                var converterAttribute = (JsonConverterAttribute)property.GetCustomAttribute(typeof(JsonConverterAttribute)) ?? (JsonConverterAttribute)property.PropertyType.GetCustomAttribute(typeof(JsonConverterAttribute));
                var conversionAttribute = (JsonConversionAttribute)property.GetCustomAttribute(typeof(JsonConversionAttribute)) ?? (JsonConversionAttribute)property.PropertyType.GetCustomAttribute(typeof(JsonConversionAttribute));
                object? value;
                if (converterAttribute != null)
                {
                    value = arr[attribute.Index].ToObject(property.PropertyType, new JsonSerializer { Converters = { (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType) } });
                }
                else if (conversionAttribute != null)
                {
                    value = arr[attribute.Index].ToObject(property.PropertyType);
                }
                else
                {
                    value = arr[attribute.Index];
                }

                if (value != null && property.PropertyType.IsInstanceOfType(value))
                    property.SetValue(result, value);
                else
                {
                    if (value is JToken token)
                        if (token.Type == JTokenType.Null)
                            value = null;

                    if ((property.PropertyType == typeof(decimal)
                     || property.PropertyType == typeof(decimal?))
                     && (value != null && value.ToString().Contains("e")))
                    {
                        if (decimal.TryParse(value.ToString(), NumberStyles.Float, CultureInfo.InvariantCulture, out var dec))
                            property.SetValue(result, dec);
                    }
                    else
                    {
                        property.SetValue(result, value == null ? null : Convert.ChangeType(value, property.PropertyType));
                    }
                }
            }
            return result;
        }


        /// <inheritdoc />
        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            writer.WriteStartArray();
            var props = value.GetType().GetProperties();
            var ordered = props.OrderBy(p => p.GetCustomAttribute<ArrayPropertyAttribute>()?.Index);

            var last = -1;
            foreach (var prop in ordered)
            {
                var arrayProp = prop.GetCustomAttribute<ArrayPropertyAttribute>();
                if (arrayProp == null)
                    continue;

                if (arrayProp.Index == last)
                    continue;

                while (arrayProp.Index != last + 1)
                {
                    writer.WriteValue((string?)null);
                    last += 1;
                }

                last = arrayProp.Index;
                var converterAttribute = (JsonConverterAttribute)prop.GetCustomAttribute(typeof(JsonConverterAttribute));
                if (converterAttribute != null)
                    writer.WriteRawValue(JsonConvert.SerializeObject(prop.GetValue(value), (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType)));
                else if (!IsSimple(prop.PropertyType))
                    serializer.Serialize(writer, prop.GetValue(value));
                else
                    writer.WriteValue(prop.GetValue(value));
            }
            writer.WriteEndArray();
        }


        private static bool IsSimple(Type type)
        {
            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
                // nullable type, check if the nested type is simple.
                return IsSimple(type.GetGenericArguments()[0]);
            }
            return type.IsPrimitive
              || type.IsEnum
              || type == typeof(string)
              || type == typeof(decimal);
        }

Project:CryptoExchange.Net File:ArrayConverter.cs Examples:6


        /// <inheritdoc />
        public override bool CanConvert(Type objectType)
        {
            return true;
        }

        
        /// <inheritdoc />
        public override object? ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
        {
            if (objectType == typeof(JToken))
                return JToken.Load(reader);

            var result = Activator.CreateInstance(objectType);
            var arr = JArray.Load(reader);
            return ParseObject(arr, result, objectType);
        }


        private static object? ParseObject(JArray arr, object result, Type objectType)
        {
            foreach (var property in objectType.GetProperties())
            {
                var attribute = GetCustomAttribute<ArrayPropertyAttribute>(property);

                if (attribute == null)
                    continue;

                if (attribute.Index >= arr.Count)
                    continue;

                if (property.PropertyType.BaseType == typeof(Array))
                {
                    var objType = property.PropertyType.GetElementType();
                    var innerArray = (JArray)arr[attribute.Index];
                    var count = 0;
                    if (innerArray.Count == 0)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new [] { 0 });
                        property.SetValue(result, arrayResult);
                    }
                    else if (innerArray[0].Type == JTokenType.Array)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new [] { innerArray.Count });
                        foreach (var obj in innerArray)
                        {
                            var innerObj = Activator.CreateInstance(objType);
                            arrayResult[count] = ParseObject((JArray)obj, innerObj, objType);
                            count++;
                        }
                        property.SetValue(result, arrayResult);
                    }
                    else
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new [] { 1 });
                        var innerObj = Activator.CreateInstance(objType);
                        arrayResult[0] = ParseObject(innerArray, innerObj, objType);
                        property.SetValue(result, arrayResult);
                    }
                    continue;
                }

                var converterAttribute = GetCustomAttribute<JsonConverterAttribute>(property) ?? GetCustomAttribute<JsonConverterAttribute>(property.PropertyType);
                var conversionAttribute = GetCustomAttribute<JsonConversionAttribute>(property) ?? GetCustomAttribute<JsonConversionAttribute>(property.PropertyType);

                object? value;
                if (converterAttribute != null)
                {
                    value = arr[attribute.Index].ToObject(property.PropertyType, new JsonSerializer {Converters = {(JsonConverter) Activator.CreateInstance(converterAttribute.ConverterType)}});
                }
                else if (conversionAttribute != null)
                {
                    value = arr[attribute.Index].ToObject(property.PropertyType);
                }
                else
                {
                    value = arr[attribute.Index];
                }

                if (value != null && property.PropertyType.IsInstanceOfType(value))
                    property.SetValue(result, value);
                else
                {
                    if (value is JToken token)
                        if (token.Type == JTokenType.Null)
                            value = null;

                    if ((property.PropertyType == typeof(decimal)
                     || property.PropertyType == typeof(decimal?))
                     && (value != null && value.ToString().Contains("e")))
                    {
                        if (decimal.TryParse(value.ToString(), NumberStyles.Float, CultureInfo.InvariantCulture, out var dec))
                            property.SetValue(result, dec);
                    }
                    else
                    {
                        property.SetValue(result, value == null ? null : Convert.ChangeType(value, property.PropertyType));
                    }
                }
            }
            return result;
        }


        /// <inheritdoc />
        public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
        {
            if (value == null)
                return;

            writer.WriteStartArray();
            var props = value.GetType().GetProperties();
            var ordered = props.OrderBy(p => GetCustomAttribute<ArrayPropertyAttribute>(p)?.Index);

            var last = -1;
            foreach (var prop in ordered)
            {
                var arrayProp = GetCustomAttribute<ArrayPropertyAttribute>(prop);
                if (arrayProp == null)
                    continue;

                if (arrayProp.Index == last)
                    continue;

                while (arrayProp.Index != last + 1)
                {
                    writer.WriteValue((string?)null);
                    last += 1;
                }

                last = arrayProp.Index;
                var converterAttribute = GetCustomAttribute<JsonConverterAttribute>(prop);
                if (converterAttribute != null)
                    writer.WriteRawValue(JsonConvert.SerializeObject(prop.GetValue(value), (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType)));
                else if (!IsSimple(prop.PropertyType))
                    serializer.Serialize(writer, prop.GetValue(value));
                else
                    writer.WriteValue(prop.GetValue(value));
            }
            writer.WriteEndArray();
        }


        private static bool IsSimple(Type type)
        {
            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
                // nullable type, check if the nested type is simple.
                return IsSimple(type.GetGenericArguments()[0]);
            }
            return type.IsPrimitive
              || type.IsEnum
              || type == typeof(string)
              || type == typeof(decimal);
        }


        private static T? GetCustomAttribute<T>(MemberInfo memberInfo) where T : Attribute =>
            (T?)attributeByMemberInfoAndTypeCache.GetOrAdd((memberInfo, typeof(T)), tuple => memberInfo.GetCustomAttribute(typeof(T)));

Project:avs-core-lib-nuget File:ArrayPropertyAttribute.cs Examples:1

using System;

namespace AVS.CoreLib.REST.Attributes
{
    /// <summary>
    /// Instructs <see cref="T:AVS.CoreLib.Json.ArrayConverter" /> how to serialize/deserialize json array
    /// </summary>
    public class ArrayPropertyAttribute : Attribute
    {
        public int Index { get; set; }

        /// <summary>
        /// exclusive means either the property will be written
        /// (the rest of content props with higher Index value is ignored)
        /// or the property is not written but the rest content is written
        /// </summary>
        public bool Exclusive { get; set; }

        public ArrayPropertyAttribute(int index, bool exclusive = false)
        {
            Index = index;
            //Optional = optional;
            Exclusive = exclusive;
        }
    }
}

Project:Provausio.Core File:ArrayPropertyMapper.cs Examples:2

        public override T Map(IReadOnlyList<string> source, T target)
        {
            var properties = GetDecoratedProperties(target);
            if (properties == null)
                return target;

            foreach (var property in properties)
            {
                var attribute = property.GetCustomAttribute<ArrayPropertyAttribute>();
                var index = attribute.Index;

                var value = GetValue(
                    index, 
                    source, 
                    attribute.ValidationPattern, 
                    property.CanBeNull(), 
                    property.PropertyType);

                property.SetValue(target, value, null);
            }

            return target;
        }


        private static List<PropertyInfo> GetDecoratedProperties(T target)
        {
            var properties = target
                .GetType()
                .GetTypeInfo()
                .DeclaredProperties
                .Where(prop => prop.GetCustomAttributes<ArrayPropertyAttribute>().Any())
                .ToList();

            return properties;
        }

Project:RoboTrader File:OrderBodyConverter.cs Examples:4

        /// <summary>
        /// 
        /// </summary>
        /// <param name="objectType"></param>
        /// <returns></returns>
        public override bool CanConvert(Type objectType)
        {
            return objectType == typeof(List<>);
        }


        /// <summary>
        /// 
        /// </summary>
        /// <param name="reader"></param>
        /// <param name="objectType"></param>
        /// <param name="existingValue"></param>
        /// <param name="serializer"></param>
        /// <returns></returns>
        public override object? ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
        {
            if (objectType == typeof(JToken))
                return JToken.Load(reader);

            var result = Activator.CreateInstance(objectType);
            var arr = JArray.Load(reader);
            return ParseObject(arr, result, objectType);
        }


        private object? ParseObject(JArray arr, object result, Type objectType)
        {
            foreach (var property in objectType.GetProperties())
            {
                var attribute =
                    (ArrayPropertyAttribute)property.GetCustomAttribute(typeof(ArrayPropertyAttribute));

                var value = arr[attribute.Index].ToObject<List<BitfinexOrderBody>>();
                property.SetValue(result, value);
            }
            return result;
        }


        /// <summary>
        /// 
        /// </summary>
        /// <param name="writer"></param>
        /// <param name="value"></param>
        /// <param name="serializer"></param>
        public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
        {
            throw new NotImplementedException();
        }

Project:provausio File:AttributeMapper.cs Examples:5

        public T Map(IReadOnlyList<string> source, T target)
        {
            var properties = GetDecoratedProperties(target);
            if (properties == null)
                return target;

            foreach (var property in properties)
            {
                var attribute = property.GetCustomAttribute<ArrayPropertyAttribute>();
                var index = attribute.Index;

                var stringValue = GetValue(index, source);
                var propertyValue = SafeConvert(stringValue, property.PropertyType);
                property.SetValue(target, propertyValue, null);
            }

            return target;
        }


        private static List<PropertyInfo> GetDecoratedProperties(T target)
        {
            var properties = target
                .GetType()
                .GetTypeInfo()
                .DeclaredProperties
                .Where(prop => prop.GetCustomAttributes<ArrayPropertyAttribute>().Any())
                .ToList();

            return properties;
        }


        private static string GetValue(int index, IReadOnlyList<string> source)
        {
            var value = source.Count < index + 1
                ? string.Empty
                : source[index];

            return value;
        }


        private static object SafeConvert(string value, Type destinationType)
        {
            var result = GetDefaultValue(destinationType);

            try
            {
                result = Convert.ChangeType(value, destinationType);
                return result;
            }
            catch (FormatException) { }

            return result;
        }


        private static object GetDefaultValue(Type t)
        {
            return t.GetTypeInfo().IsValueType
                ? Activator.CreateInstance(t)
                : null;
        }

Project:avs-core-lib-nuget File:ArrayConverter.cs Examples:4

        public override bool CanConvert(Type objectType)
        {
            return true;
        }


        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            if (objectType == typeof(JToken))
                return JToken.Load(reader);

            var result = Activator.CreateInstance(objectType);
            var arr = JArray.Load(reader);
            return ParseObject(arr, result, objectType);
        }


        private static object ParseObject(JArray arr, object result, Type objectType)
        {
            foreach (var property in objectType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
            {
                var attribute =
                    (ArrayPropertyAttribute)property.GetCustomAttribute(typeof(ArrayPropertyAttribute));
                if (attribute == null)
                    continue;

                if (attribute.Index >= arr.Count)
                    continue;

                if (property.PropertyType.BaseType == typeof(Array))
                {
                    var objType = property.PropertyType.GetElementType();
                    var innerArray = (JArray)arr[attribute.Index];
                    var count = 0;
                    if (innerArray.Count == 0)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 0 });
                        property.SetValue(result, arrayResult);
                    }
                    else if (innerArray[0].Type == JTokenType.Array)
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { innerArray.Count });
                        foreach (var obj in innerArray)
                        {
                            var innerObj = Activator.CreateInstance(objType);
                            arrayResult[count] = ParseObject((JArray)obj, innerObj, objType);
                            count++;
                        }
                        property.SetValue(result, arrayResult);
                    }
                    else
                    {
                        var arrayResult = (IList)Activator.CreateInstance(property.PropertyType, new[] { 1 });
                        var innerObj = Activator.CreateInstance(objType);
                        arrayResult[0] = ParseObject(innerArray, innerObj, objType);
                        property.SetValue(result, arrayResult);
                    }
                    continue;
                }

                var converterAttribute = (JsonConverterAttribute)property.GetCustomAttribute(typeof(JsonConverterAttribute)) ?? (JsonConverterAttribute)property.PropertyType.GetCustomAttribute(typeof(JsonConverterAttribute));
                var value = converterAttribute != null ? arr[attribute.Index].ToObject(property.PropertyType, new JsonSerializer { Converters = { (JsonConverter)Activator.CreateInstance(converterAttribute.ConverterType) } }) : arr[attribute.Index];

                if (value != null && property.PropertyType.IsInstanceOfType(value))
                    property.SetValue(result, value);
                else
                {
                    if (value is JToken token)
                        if (token.Type == JTokenType.Null)
                            value = null;

                    if ((property.PropertyType == typeof(decimal)
                     || property.PropertyType == typeof(decimal?))
                     && (value != null && value.ToString().Contains("e")))
                    {
                        if (decimal.TryParse(value.ToString(), NumberStyles.Float, CultureInfo.InvariantCulture, out var dec))
                            property.SetValue(result, dec);
                    }
                    else
                    {
                        property.SetValue(result, value == null ? null : Convert.ChangeType(value, property.PropertyType));
                    }
                }
            }
            return result;
        }


        public override void WriteJson(JsonWriter writer, object obj, JsonSerializer serializer)
        {
            writer.WriteStartArray();
            var type = obj.GetType();
            var props = type.GetProperties();
            var list = new SortedList<int, (PropertyInfo prop, bool Exclusive)>();
            foreach (var p in props)
            {
                if (p.HasIgnoreAttribute())
                    continue;

                var attr = p.GetCustomAttribute<ArrayPropertyAttribute>();
                if (attr == null)
                    continue;

                list.Add(attr.Index, (p, attr.Exclusive));
            }

            //drop index gaps e.g. -10 0 1 2 3 etc. the gap is -10;0
            var dict = new Dictionary<int, (PropertyInfo prop, bool Exclusive)>(list.Count);
            var i = 0;
            foreach (var kp in list)
            {
                dict.Add(i++, kp.Value);
            }

            var last = -1;

            foreach (var kp in dict)
            {
                var prop = kp.Value.prop;
                var index = kp.Key;

                if (index == last)
                    continue;

                if (!prop.ShouldSerialize(type, obj))
                {
                    if (kp.Value.Exclusive)
                        last += 1;
                    continue;
                }

                while (index != last + 1)
                {
                    writer.WriteValue((string)null);
                    last += 1;
                }

                last = index;

                var value = prop.GetValue(obj);
                writer.WritePropertyValue(prop, value, serializer);

                if (kp.Value.Exclusive)
                    break;
            }

            writer.WriteEndArray();
        }

Project:com.etsoo.CoreFramework File:ArrayPropertyAttribute.cs Examples:1

using System;

namespace com.etsoo.SourceGenerators.Attributes
{
    /// <summary>
    /// Auto DbDataReader object creator support attribute
    /// 自动DbDataReader对象创建者支持属性
    /// </summary>
    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
    public class ArrayPropertyAttribute : Attribute
    {
        /// <summary>
        /// Splitter
        /// 分割字符
        /// </summary>
        public char Splitter { get; set; }

        /// <summary>
        /// Constructor
        /// 构造函数
        /// </summary>
        /// <param name="splitter">Splitter</param>
        public ArrayPropertyAttribute(char splitter)
        {
            Splitter = splitter;
        }
    }
}

CryptoExchange.Net.Converters.ArrayPropertyAttribute : Attribute

Constructors :

public ArrayPropertyAttribute(Int32 index = )

Methods :

public Int32 get_Index()
public Boolean Equals(Object obj = )
public Int32 GetHashCode()
public Object get_TypeId()
public Boolean Match(Object obj = )
public Boolean IsDefaultAttribute()
public Type GetType()
public String ToString()