public static string ToJson(object obj)
{
if (obj == null)
{
return(string.Empty);
}
Type t = obj.GetType();
if (!IsJsonSerializable(t))
{
return(null);
}
StringBuilder jsonBuilder = new StringBuilder();
jsonBuilder.Append("{");
// use to stroage key-values and then concat them
//
List <string> keyValues = new List <string>();
foreach (var keyVal in GetPropertyInfoList(t))
{
object val = keyVal.Value.GetValue(obj, null);
string jsonValue = string.Empty;
if (val == null)
{
jsonValue = "null";
keyValues.Add(string.Format("\"{0}\":{1}", keyVal.Key, jsonValue));
continue;
}
// If mark JSONRootAttribute, the we use its json value
// otherwise, we use its property values
//
if (IsJsonSerializable(val.GetType()))
{
jsonValue = APJsonSerializer.ToJson(val);
keyValues.Add(string.Format("\"{0}\":{1}", keyVal.Key, jsonValue));
}
else if (val is IList)
{
jsonValue = ToJsonArray(val as IList);
keyValues.Add(string.Format("\"{0}\":{1}", keyVal.Key, jsonValue));
}
else
{
jsonValue = val.ToString();
keyValues.Add(string.Format("\"{0}\":\"{1}\"", keyVal.Key, jsonValue));
}
}
jsonBuilder.Append(string.Join(",", keyValues.ToArray()));
jsonBuilder.Append("}");
return(jsonBuilder.ToString());
}
public static void UpdateJsonInAsset(APAsset asset)
{
string json = APJsonSerializer.ToJson(asset);
asset.Json = SafeJson(json);
}