There is a problem parse to json my string value-CodePudding

{
    "wMetropolCardOrderID": 588,
    "success": true,
    "responseCode": 0,
    "responseMessage": "Kayıt Eklendi"
}

This json object returns from Postman.

As you see in the screenshot, I need to take wMetropolCardOrderID from the string value. I tried parsing json but got some errors. How can I get it correctly with using parsejson method. Also is there any way to take it except using substring method?

CodePudding user response：

You can parse the JSON and extract the field result.

using Newtonsoft.Json;

var json = resultnopbakye.Substring(resultnopbakye.IndexOf("{"));
int wMetropolCardOrderID = Convert.ToInt32(JObject.Parse(json)["wMetropolCardOrderID"]);

CodePudding user response：

It seems there is "more data" than just the JSON, at the beginning of your string you are also getting the date time and a <br />.

You can do the following

public class MyModel
{
    public int wMetropolCardOrderID {get;set;}  
    public bool success {get;set;}
    public int responseCode {get;set;}
    public string responseMessage {get;set;}

} 


string resultnopbakiyeJson = resultnopbakiye.split("<br />")[1];
// For Newtonsoft.Json
MyReturn myData = JsonConvert.DeserializeObject<MyModel>(resultnopbakiyeJson)
// For System.Text.Json
MyReturn myData = JsonSerializer.Deserialize<MyModel>(resultnopbakiyeJson);

It is also a good idea to add some defensive code, like checking if the string contains <br /> or checking if the split method returned an array larger than 1 prior accessing the index.