public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
var points = value as IReadOnlyList <InkPoint>;
if (points != null)
{
var pointsStr = InkPointHelper.InkPointsToString(points);
serializer.Serialize(writer, pointsStr);
}
else
{
throw new InvalidCastException("Unable to cast object to type 'IReadOnlyList<InkPoint>'");
}
}
