Iterate a JSON data, put comma after each run and SerializeObject-CodePudding

I am trying to iterate (Do While) JSON data input, put Comma after each run, and put [ ] around at the end.

var query = new QueryFunction()
{
       Offset = 0,
       PageSize = 2
};
do
{
      query.Offset = offset;
      query.PageSize = pagesize;

      Task<OnlineResponse> task = client.Execute(query);
      OnlineResponse response = task.Result;
      Result result = response.Results[0];

      dynamic resultJson = JsonConvert.SerializeObject(result.Data);

      offset  = pagesize;
      resultJsonString  = resultJson;

      //remaining = result.NumRemaining;
      // Tried to put , after each loop
      //if (remaining == 0)
      //    resultJsonString  = resultJson;
      //else
      //    resultJsonString  = resultJson   ",";

} while (offset < 4);
return resultJsonString;

So, currently, the output for "resultJsonString" is like this as it iterate two times:

As you can see, it put [ ] around each run (2 output each time), with no comma after each run.

"[{\"GLDETAIL\":{\"RECORDNO\":\"264378-1756289-919567\",\"BATCH_DATE\":\"02/01/2022\"}},
 {\"GLDETAIL\":{\"RECORDNO\":\"264378-1756290-919568-\",\"BATCH_DATE\":\"02/01/2022\"}}]
 [{\"GLDETAIL\":{\"RECORDNO\":\"264379-1756291-919569\",\"BATCH_DATE\":\"02/01/2022\"}},
 {\"GLDETAIL\":{\"RECORDNO\":\"264379-1756292-919570\",\"BATCH_DATE\":\"02/01/2022\"}}]"

Expected output is like this.

"[{\"GLDETAIL\":{\"RECORDNO\":\"264378-1756289-919567\",\"BATCH_DATE\":\"02/01/2022\"}},
 {\"GLDETAIL\":{\"RECORDNO\":\"264378-1756290-919568\",\"BATCH_DATE\":\"02/01/2022\"}},
 {\"GLDETAIL\":{\"RECORDNO\":\"264379-1756291-919569\",\"BATCH_DATE\":\"02/01/2022\"}},
 {\"GLDETAIL\":{\"RECORDNO\":\"264379-1756292-919570\",\"BATCH_DATE\":\"02/01/2022\"}}]"

CodePudding user response：

Don't append the JSON string manually.

Instead, add the object into the array/list during the iteration in the do-while loop.

The result.Data returns an array of data, hence you need List.AddRange().

When the loop exits, serialize the array/list.

using Syste.Linq;

List<dynamic> resultList = new List<dynamic>();

do
{
      query.Offset = offset;
      query.PageSize = pagesize;

      Task<OnlineResponse> task = client.Execute(query);
      OnlineResponse response = task.Result;
      Result result = response.Results[0];

      offset  = pagesize;
      resultList.AddRange(result.Data);

      //remaining = result.NumRemaining;
      // Tried to put , after each loop
      //if (remaining == 0)
      //    resultJsonString  = resultJson;
      //else
      //    resultJsonString  = resultJson   ",";

} while (offset < 4);

resultJsonString = JsonConvert.SerializeObject(resultList);

return resultJsonString;