c# - 在测试方法中从 JSON 文件中删除元素

Question

我有一个 JSON 文件，如下所示，我想删除其中的一行/元素，特别是“FinanceDetails[LoanAmount]”。我该如何用 C# 编写这个代码。

"IntegratorID": "e20a5569-8e63-42ca-9f33-872d826276d0",
  "CorrelationID": "00000000-0000-0000-0000-000000000000",
  "ProposalID": 0,
  "Stage": "DECISION",
  "Request": "SendProposal",
  "PropertyValues": {
    "ExternalReference": "Integrator Reference",
    "ProposalType": "Private Individual",
    "Dealer[DealerID]": "9344",
    "FinanceDetails[Type]": "PCP",
    "FinanceDetails[CashDeposit]": "111",
    "FinanceDetails[Settlement]": "11",
    "FinanceDetails[PartExchange]": "22",
    "FinanceDetails[Term]": "72",
    "FinanceDetails[APR]": "12.9",
    "FinanceDetails[LoanAmount]": "0",
    "FinanceDetails[AnnualMileage]": "40000"
}

这是我目前拥有的，但不起作用。

public static void RemoveLineRequest(string fieldName)
{
    string sendProposalRequestSuccess = File.ReadAllText(sendProposalJSONFile);
    dynamic jsonObj = JsonConvert.DeserializeObject(sendProposalRequestSuccess);
    string output = jsonObj["PropertyValues"][fieldName];
    string finaloutput = JsonConvert.SerializeObject(output, Formatting.Indented);
    File.WriteAllText(sendProposalJSONFile, finaloutput);
}

Answer 1

不要反序列化为动态，使用JObject (请参阅
Modifying JSON 文档):

var jsonObject = JsonConvert.DeserializeObject<JObject>(sendProposalRequestSuccess);
var propValues = (JObject)jsonObject["PropertyValues"];
propValues.Remove("FinanceDetails[LoanAmount]");