需要一种有效的方法来从JSON字符串中获取JObject

Question

"[{"Key":"Response","Value":[{"OrderID":78749,"OrderItemID":335451,"ProgramID":195903,"ProgramName":"UNIVERSITY","ProgramDescription":"UNIVERSITY","ScheduleDate":"2013-09-18T00:00:00","SubmitOrderRequestDate":"2013-07-21T19:05:00","OrderTypeName":"AlaCarte","OrderTypeDescription":"AlaCarte","ProductID":null,"ProductName":null,"ProductDescription":null,"ProductHTMLTitle":null,"EditionName":"Spring 2012-D","EditionID":78814,"EditionDescription":"multi","SpecialInstruction":null,"OrderDeliveryTypeName":"W","OrderDeliveryTypeDescription":"server (downloaded)","OrderItemStatusName":"Needs to be Compared","OrderItemStatusDescription":"Needs to be Compared","EditionStatus":"Active","EditionStatusDescription":"Active","OrderItemDeliveryStatusName":null,"OrderItemDeliveryStatusDescription":null,"OrderItemQuantity":2,"OrderItemDeliveryQuantityRequested":null,"OrderItemDeliveryID":null,"UploadedFlag":null,"AccessCode":null,"Created":null,"UseSecureBrowserFlag":null,"ExamName":"Cert's Exam","CohortID":2267,"CohortName":"Cohort test 30 may","StudentCount":19,"ExamTypeProgramTypeID":null,"OrderItemApplicationID":2,"DBLockedByUserName":null,"AutoCodeEditionFlag":null,"WorkflowName":null,"WorkflowStatus":null,"UseLastSyllabusFlag":false,"SyllabusID":58,"AssessmentTypeName":null}]}]"

有人可以建议一种有效的方法来使用Newtonsoft JSON API获取"Value"JArray中的第一个对象吗？

Answer 1

这是我尝试过的，它有效。如果有人可以改进它，请随意。

private dynamic GetFirstObject(string response)
{
    dynamic firstObject = null;
    if (!String.IsNullOrEmpty(response))
    {
        JArray arrResponse = JArray.Parse(response) as JArray;
        dynamic dyResponse = arrResponse[0];
        string strValue = JsonConvert.SerializeObject(dyResponse.Value);
        JArray arrValueList = JArray.Parse(strValue);
        if (arrValueList.Count > 0)
        {
            firstObject = arrValueList[0];
        }
    }
    return firstObject;
}

Answer 2

使用 DeserializeObject

var myObject = JsonConvert.DeserializeObject<List<ResponseObject>>(json);
var OrderID = myObject[0].Value[0].OrderID;

以下是您需要的课程：

public class ResponseObject
{
    public string Key { get; set; }
    public List<Value> Value { get; set; }
}
public class Value
{
    public int OrderID { get; set; }
    public int OrderItemID { get; set; }
    public int ProgramID { get; set; }
    public string ProgramName { get; set; }
    public string ProgramDescription { get; set; }
    public string ScheduleDate { get; set; }
    public string SubmitOrderRequestDate { get; set; }
    public string OrderTypeName { get; set; }
    public string OrderTypeDescription { get; set; }
    public object ProductID { get; set; }
    public object ProductName { get; set; }
    public object ProductDescription { get; set; }
    public object ProductHTMLTitle { get; set; }
    public string EditionName { get; set; }
    public int EditionID { get; set; }
    public string EditionDescription { get; set; }
    public object SpecialInstruction { get; set; }
    public string OrderDeliveryTypeName { get; set; }
    public string OrderDeliveryTypeDescription { get; set; }
    public string OrderItemStatusName { get; set; }
    public string OrderItemStatusDescription { get; set; }
    public string EditionStatus { get; set; }
    public string EditionStatusDescription { get; set; }
    public object OrderItemDeliveryStatusName { get; set; }
    public object OrderItemDeliveryStatusDescription { get; set; }
    public int OrderItemQuantity { get; set; }
    public object OrderItemDeliveryQuantityRequested { get; set; }
    public object OrderItemDeliveryID { get; set; }
    public object UploadedFlag { get; set; }
    public object AccessCode { get; set; }
    public object Created { get; set; }
    public object UseSecureBrowserFlag { get; set; }
    public string ExamName { get; set; }
    public int CohortID { get; set; }
    public string CohortName { get; set; }
    public int StudentCount { get; set; }
    public object ExamTypeProgramTypeID { get; set; }
    public int OrderItemApplicationID { get; set; }
    public object DBLockedByUserName { get; set; }
    public object AutoCodeEditionFlag { get; set; }
    public object WorkflowName { get; set; }
    public object WorkflowStatus { get; set; }
    public bool UseLastSyllabusFlag { get; set; }
    public int SyllabusID { get; set; }
    public object AssessmentTypeName { get; set; }
}