JsonParser.cs

using System.Globalization;
using Newtonsoft.Json.Linq;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.DC;
using DevExpress.Persistent.BaseImpl;

public static class JsonParser {
	public static void ParseJObject<T>(JObject jObject, object obj, IObjectSpace objectSpace) where T : BaseObject {
		ITypeInfo typeInfo = objectSpace.TypesInfo.FindTypeInfo(typeof(T));
		List<string> memberNameList = jObject.Properties().Select(p => p.Name).ToList();
		foreach(string memberName in memberNameList) {
			IMemberInfo memberInfo = typeInfo.FindMember(memberName);
			if(memberInfo.IsAssociation) {
				ParseAssociationProperty(jObject, obj, memberInfo, objectSpace);
			}
			else {
				ParseSimpleProperty(jObject, obj, memberInfo);
			}
		}
		objectSpace.CommitChanges();
	}
	private static void ParseSimpleProperty(JObject jObject, object obj, IMemberInfo memberInfo) {
		JValue jValue = (JValue)jObject[memberInfo.Name];
		object value = ConvertType(jValue, memberInfo);
		memberInfo.SetValue(obj, value);
	}
	private static void ParseAssociationProperty(JObject jObject, object obj, IMemberInfo memberInfo, IObjectSpace objectSpace) {
		string keyPropertyName = memberInfo.MemberTypeInfo.KeyMember.Name;
		JToken keyToken = jObject[memberInfo.Name][keyPropertyName];
		object keyValue = ConvertType((JValue)keyToken, memberInfo.MemberTypeInfo.KeyMember);
		object value = objectSpace.GetObjectByKey(memberInfo.MemberType, keyValue);
		memberInfo.SetValue(obj, value);
	}
	private static object ConvertType(JValue jValue, IMemberInfo memberInfo) {
		object value = jValue.Value;
		if(value != null) {
			if(value.GetType() != memberInfo.MemberType) {
				if(value is string && memberInfo.MemberType == typeof(Guid)) {
					value = Guid.Parse((string)value);
				}
				else {
					value = Convert.ChangeType(value, memberInfo.MemberType, CultureInfo.InvariantCulture);
				}
			}
		}
		return value;
	}
}