[英]JsonConvert.DeserializeObject is not working when deserializing to a DataSet
我试图将 JSON 字符串转换为数据集,但它抛出了一个错误:
读取 DataTable 时出现意外的 JSON 令牌。 预期 StartArray,得到 StartObject。 路径“数据”,第 1 行,position 9。
来自DataSet dataSet = (DataSet)JsonConvert.DeserializeObject(json, (typeof(DataSet)));
线。
来自服务器的 JSON 响应看起来不错; 这是我的代码:
public void GlobalApiCall(string API_Name, string postData)
{
ConnectionClass t1 = new ConnectionClass();
var link = ConfigurationManager.AppSettings["ReportUrl"];
var request1 = (HttpWebRequest)WebRequest.Create(link + API_Name);
var data1 = Encoding.ASCII.GetBytes(postData);
request1.Method = "POST";
request1.ContentType = "application/x-www-form-urlencoded";
request1.ContentLength = data1.Length;
using (var stream = request1.GetRequestStream())
{
stream.Write(data1, 0, data1.Length);
}
var response1 = (HttpWebResponse)request1.GetResponse();
var responseString1 = new StreamReader(response1.GetResponseStream()).ReadToEnd();
String json = responseString1.Replace("\"", "'");
DataSet dataSet = (DataSet)JsonConvert.DeserializeObject(json, (typeof(DataSet)));
}
和我的 JSON 响应:
{
"data": {
"Table": [
{
"FirmId": 67,
"FirmName": "FURNITURE ELECTRONICS & HOME APPLIANCES ",
"BranchId": 44317,
"BranchName": " PERINTHALMANNA",
"Address": "PERINTHALMANNA",
"Contact": "123456",
"HelpLine": "454656",
"MailId": "qwerty@GMAIL.COM",
"GSTINNo": "wewrerw",
"BranchRegNo": "08/2019",
"PAN": "rwerewr",
"OtherNotes": "",
"State": "KERALA",
"StateCode": "32",
"Delivery": "Y"
}
]
}
}
我无法找到问题。 我应该从哪里开始寻找?
您收到此错误是因为 JSON 不是反序列化器期望转换为DataSet
的格式。 特别是,DataSet 数据似乎包装在外部 object 中。 尝试像这样反序列化 JSON :
DataSet dataSet = JObject.Parse(json)["data"].ToObject<DataSet>();
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