Json反序列化字符串错误

Question

private void ExmpDatasave()
    {
        DataSet dataSet = new DataSet("dataSet");
         dataSet.Namespace = "NetFrameWork";
         DataTable table = new DataTable();
         DataColumn idColumn = new DataColumn("id", typeof(int));
         idColumn.AutoIncrement = true;

         DataColumn itemColumn = new DataColumn("item");
         table.Columns.Add(idColumn);
         table.Columns.Add(itemColumn);
        dataSet.Tables.Add(table);

        for (int i = 0; i < 2; i++)
        {
            DataRow newRow = table.NewRow();
            newRow["item"] = "item " + i;
            table.Rows.Add(newRow);
        }

        dataSet.AcceptChanges();

        string json = JsonConvert.SerializeObject(dataSet, Formatting.None);
         Helper.WriteToJson(json);
    }

    private void ExmpDataread()
    {

        using (StreamReader r = new StreamReader("exmp.json"))
        {
            string json = r.ReadToEnd();

            var myJSONString = json.ToString();

            DataSet dataSet = JsonConvert.DeserializeObject<DataSet>(json);
            DataTable dataTable = dataSet.Tables["Table1"];
            Console.WriteLine(dataTable.Rows.Count);
        }
    }

Hey its my brief code ExmpDatasave() is used to save a entire data in json works fine; ExmpDataread gives error:

Unexpected end when reading DataSet. Path '', line 1, position 78.

My json values "{\\"Table1\\":[{\\"id\\":0,\\"item\\":\\"item 0\\"},{\\"id\\":1,\\"item\\":\\"item 1\\"}]}"
Please help me to figure out. Thank you in advance..

Answer 1

I experience this exact issue and although I wasn't savvy enough to resolve the issue I was able to work around it and for the better I think.

I decided to use Newtonsoft.Json.Linq; to get similar results

            dynamic json = JsonConvert.DeserializeObject(reader.ReadToEnd());
            JObject js = JObject.Parse(json);
            Console.Writeline(js["Table1"].Count);

I wouldn't consider this a full answer as I was never able to figure out why It is giving the error when everything says it shouldn't be. But I was rather happy to find this path so I hope it helps