using Newtonsoft.Json.Linq;
using System.Collections.Generic;
using System.Threading.Tasks;
public static void Main()
[null, null, null, ""0.001"", ""100000.0"", null, null, null, null, null]
[null, null, null, ""0.4"", ""100000.0"", null, null, null, 0.5, 0.25]
var jToken = Newtonsoft.Json.JsonConvert.DeserializeObject<JToken>(str);
foreach (JArray jArray in jToken)
foreach (JArray infoArray in jArray)
string code = infoArray[0].ConvertInvariant<string>();
JArray infoItems = (JArray)infoArray[1];
string strMinOrderSize = ((string? ))is null ? "" : infoItems[3].ConvertInvariant<string>();