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How can we have dynamic xml element name in C# class file?

This is my current XML Response tag
<Response_Data_1234 diffgr:id="Response_Data_1234" msdata:rowOrder="0" diffgr:hasChanges="inserted">
<Status>File received.</Status>
<Time>2022-01-25T09:44:15.73+08:00</Time>
<Location>HKG</Location>
</Response_Data_1234>
the number 1234 in <Response_Data_1234> is a Response Data id, which will be dynamic depending on the request.
Could someone please me create a C# class in this scenario so that I can map the response directly to the class. Thanks in advance

Actually you should not have any unique identifier attached to XML element name. It should be added as attribute.
To answer your question:
There is no direct class attribute to ignore class name while deserialisation of xml string to object.
Option1 (better): Create mapper extension method for XNode to class attribute mapping and reuse it.
Option2:
If your xml string is small you can try to update name of root element and use it to deserialise.
sample code:
var responseDataXDoc = XDocument.Parse(xml);
responseDataXDoc.Root.Name = "ResponseData";
var serializer = new XmlSerializer(typeof(ResponseData));
var responseData = serializer.Deserialize(new StringReader(responseDataXDoc.ToString(SaveOptions.DisableFormatting)));

With Cinchoo ETL - an open source library, you can deserialize such xml easily as below
using (var r = ChoXmlReader<ResponseData>.LoadText(xml)
.WithXPath("//")
.WithXmlNamespace("diffgr", "")
.WithXmlNamespace("msdata", "")
)
{
var rec = r.FirstOrDefault();
rec.Print();
}
public class ResponseData
{
public string Status { get; set; }
public DateTime Time { get; set; }
public string Location { get; set; }
}
Sample fiddle: https://dotnetfiddle.net/HOOPOg

Convert Excel to JSON using LightweightExcelReader

I have a Excel file (.xlsx) with a sheet, which looks like this:
Name | Age | Country |
Nik 17 Switzerland
Thomas 28 Kuba
Waslim 12 Russia
I want to convert this excel sheet into JSON Format.
The result should look like this:
[
{
"Name":"Nik",
"Age":17,
"Country":"Switzerland"
},
{
"Name":"Thomas",
"Age":28,
"Country":"Kuba"
},
{
"Name":"Waslim",
"Age":12,
"Country":"Russia"
}
]
I would like to use the LightweightExcelReader framework. I know that there is a similar question already asked, but the answer uses OLEDB which shouldn't be best practice anymore. I would like to solve this transformation with a easier and faster framework.
IMPORTANT:
The number of rows and columns is dynamic and can vary, but the format of the excel sheet stays the from sheet to sheet the same.
Here is my attempt. As you can see i didn't manage alot and it's pretty basic. I managed to get the first row for the key in the JSON:
var excelReader = new ExcelReader(#"path\to\file\test.xlsx");
var sheetReader = excelReader[0];
IEnumerable<object> keys = sheetReader.Row(1);
How can I convert a Excel Sheet to JSON Format using the LightweightExcelReader Framework?

If you don't mind a dependency on Newtonsoft JSON you could do something like:
public static class ExcelJsonExtensionMethods
{
public static string ToJson(this SheetReader sheetReader)
{
IDictionary<int, string> HeaderNames = GetHeaderNames(sheetReader);
var jArray = new JArray();
while (sheetReader.ReadNext())
{
var jObject = new JObject();
do
{
var propertyName = HeaderNames[new CellRef(sheetReader.Address).ColumnNumber];
jObject[propertyName] = sheetReader.Value?.ToString();
} while (sheetReader.ReadNextInRow());
jArray.Add(jObject);
}
return jArray.ToString();
}
private static IDictionary<int, string> GetHeaderNames(SheetReader sheetReader)
{
var headerNames = new Dictionary<int, string>();
while (sheetReader.ReadNextInRow())
{
headerNames.Add(new CellRef(sheetReader.Address).ColumnNumber, sheetReader.Value?.ToString());
}
return headerNames;
}
}
Use it like:
var excelReader = new ExcelReader(#"path\to\file\test.xlsx");
var sheetReader = excelReader[0];
var sheetJson = sheetReader.ToJson();
Bear in mind that for this code to work:
The headers need to be on the first row
The header names need to be valid JSON property names
You can't have duplicate header names
There can't be any blank columns in the header

LightWeightExcelReader states on their github readme
If you want to map a spreadsheet to a collection of objects, use our sister project, ExcelToEnumerable
The sample on their sister project looks quite like what you are trying to achieve.
https://github.com/ChrisHodges/ExcelToEnumerable
public class Animal
{
public string Name { get; set; }
public string Colour { get; set; }
public int Legs { get; set; }
public decimal TopSpeed { get; set; }
}
IEnumerable<Animal> animals = "path/to/ExcelFile.xlsx".ExcelToEnumerable<Animal>();
and animals should then easily be serializable with Newtonsoft Json
using (StreamWriter file = File.CreateText(#"c:\animals.json"))
{
JsonSerializer serializer = new JsonSerializer();
serializer.Serialize(file, animals);
}

How to bind JSON response from httpClient.PostAsJsonAsync

I can httpClient.PostAsJsonAsync(path, content) fine.
However, this post returns some JSON with details of the response, eg:
{"StatusCode":200,"AccessCode":"92BEEB285ZB47DA","InternalMessage":null}
I need to access the AccessCode.
How can I do this cleanly and efficiently? Can I create an object like this:
public class GIResponse
{
public string StatusCode { get; set; }
public string AccessCode { get; set; }
public string InternalMessage { get; set; }
}
And map it to the result?
Or how would I just traverse the JSON and pull out the AccessCode?
I have searched quite extensively but surprisingly I can't find anything on Google - perhaps as this is the result from a Post, not a Get.
How can I do this?

Provided that you get the responseText using httpResponse.Content.ReadAsStringAsync, you can use Json.NET's JObject and define it as dynamic:
dynamic j = JObject.Parse(#"{""StatusCode"":200,""AccessCode"":""92BEEB285ZB47DA"",""InternalMessage"":null}");
Console.WriteLine(j.AccessCode);
Also you can use JsonConvert:
var result = JsonConvert.Deserialize<MyModel>(resposeText);
Obviously, if you already have a model, you do not read it as a string and you can simply read it as your model:
var result = httpResponse.Content.ReadAsAsync<MyModel>();

c# multi level json

I am trying to make a simple program that can automate price checking using data from json, however I haven't used json before and I'm not quite sure what I need to do get get the desired result.
Effectively I'm trying to convert this PHP into c#. (http://www.sourcecodester.com/tutorials/php/8042/api-json-parsing-php.html)
<?php
$src = file_get_contents('https://www.g2a.com/marketplace/product/auctions/?id=256');
$json = json_decode($src, true);
foreach ($json as $k=>$v) {
if (is_array($v)) {
foreach($v as $key=>$value) {
if (is_array($value)) {
foreach($value as $arKey => $arValue) {
if ($arKey == 'p') {
echo $arValue . '<br/>';
}
}
}
}
}
}
?>
I've tried a few things such as JsonConvert.DeserializeObject(webJson) and JObject.Parse(webJson), but I'm just not sure where I should be looking or how to go about doing it.
I have the first part:
internal static string GetWebContent(string #ID)
{
var wc = new WebClient();
string response = wc.DownloadString(#"https://www.g2a.com/marketplace/product/auctions/?id=" + #ID);
return response;
}
A response looks like this: (https://www.g2a.com/marketplace/product/auctions/?id=27446)
{"a":{"k_709942":{"c":"pl","tr":3451,"f":"\u00a324.71","fb":"\u00a327.18","ci":"565784","cname":"Marketplace User","p":"24.7098173","pb":"27.18431394","ep":"35.15","epb":"38.67","a":"709942","it":"game","t":"1","sl":"0","l":null,"lt":null,"x":0,"v":"all","so":0,"r":99},"k_763218":{"c":"pl","tr":1120,"f":"\u00a324.74","fb":"\u00a327.22","ci":"6533797","cname":"User #f36726dcd","p":"24.7449664","pb":"27.21946304","ep":"35.20","epb":"38.72","a":"763218","it":"game","t":"0","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":92},"k_799750":{"c":"pl","tr":559,"f":"\u00a324.78","fb":"\u00a327.26","ci":"6115711","cname":"Marketplace User","p":"24.7801155","pb":"27.26164196","ep":"35.25","epb":"38.78","a":"799750","it":"game","t":null,"sl":"0","l":null,"lt":null,"x":0,"v":"retail","so":0,"r":98},"k_722082":{"c":"gb","tr":49066,"f":"\u00a324.96","fb":"\u00a327.45","ci":"1047917","cname":"Marketplace User","p":"24.955861","pb":"27.4514471","ep":"35.50","epb":"39.05","a":"722082","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":98},"k_718113":{"c":"pl","tr":5852,"f":"\u00a324.96","fb":"\u00a327.45","ci":"226876","cname":"Marketplace User","p":"24.955861","pb":"27.4514471","ep":"35.50","epb":"39.05","a":"718113","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":98},"k_739155":{"c":"pl","tr":1208,"f":"\u00a325.43","fb":"\u00a327.98","ci":"6540559","cname":"User #1f948a6a66249","p":"25.43316468854","pb":"27.976481157394","ep":"35.30","epb":"38.83","a":"739155","it":"game","t":"0","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":89},"k_795049":{"c":"pl","tr":50420,"f":"\u00a325.86","fb":"\u00a328.45","ci":"2498689","cname":"Marketplace User","p":"25.86270778","pb":"28.44968154","ep":"36.79","epb":"40.47","a":"795049","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":99},"k_816132":{"c":"pl","tr":22,"f":"\u00a326.00","fb":"\u00a328.60","ci":"6208533","cname":"Marketplace User","p":"25.99627436","pb":"28.59730776","ep":"36.98","epb":"40.68","a":"816132","it":"game","t":"0","sl":"0","l":null,"lt":"0","x":0,"v":"retail","so":0,"r":0},"k_809925":{"c":"pl","tr":81021,"f":"\u00a326.00","fb":"\u00a328.60","ci":"407513","cname":"Marketplace User","p":"26.00330418","pb":"28.60433758","ep":"36.99","epb":"40.69","a":"809925","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"retail","so":0,"r":100},"k_815898":{"c":"cl","tr":1,"f":"\u00a326.01","fb":"\u00a328.61","ci":"7524623","cname":"Marketplace User","p":"26.010334","pb":"28.6113674","ep":"37.00","epb":"40.70","a":"815898","it":"game","t":null,"sl":"0","l":null,"lt":null,"x":0,"v":"retail","so":0,"r":0},"k_711901":{"c":"pl","tr":12194,"f":"\u00a326.51","fb":"\u00a329.16","ci":"286793","cname":"Marketplace User","p":"26.506689203722","pb":"29.158078610346","ep":"36.79","epb":"40.47","a":"711901","it":"game","t":"1","sl":"0","l":null,"lt":null,"x":0,"v":"all","so":0,"r":99},"k_748710":{"c":"pt","tr":66460,"f":"\u00a326.65","fb":"\u00a329.32","ci":"440288","cname":"Marketplace User","p":"26.650786454082","pb":"29.316585585742","ep":"36.99","epb":"40.69","a":"748710","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"all","so":0,"r":100},"k_709464":{"c":"pl","tr":121341,"f":"\u00a327.02","fb":"\u00a329.72","ci":"1072530","cname":"User #3285e5f8dfcb2","p":"27.0182344425","pb":"29.72005788675","ep":"37.50","epb":"41.25","a":"709464","it":"game","t":"1","sl":"0","l":null,"lt":"0","x":0,"v":"retail","so":0,"r":100},"k_709805":{"c":"pl","tr":11708,"f":"\u00a328.09","fb":"\u00a330.90","ci":"1043113","cname":"User #ca1965d0354a","p":"28.091758957682","pb":"30.901655339702","ep":"38.99","epb":"42.89","a":"709805","it":"game","t":"1","sl":"0","l":null,"lt":null,"x":0,"v":"retail","so":0,"r":100},"k_725839":{"c":"es","tr":1,"f":"\u00a331.99","fb":"\u00a335.18","ci":"7023396","cname":"Marketplace User","p":"31.985681","pb":"35.1842491","ep":"45.50","epb":"50.05","a":"725839","it":"game","t":null,"sl":"0","l":null,"lt":null,"x":0,"v":"retail","so":0,"r":0},"k_0":{"f":"\u00a332.33","fb":"\u00a335.56","p":"32.33014218","pb":"35.563156398","ep":"45.99","epb":"50.59","a":0,"c":"","rc":"","r":"","tr":0,"t":1,"so":0,"x":0,"n":"G2A.com"}},"w":0}
Any help with will greatly appreciated.
Thanks in advace

So Json is a way for two languages to pass objects to each other. It's just a way to encode an object, so the first part would be to create an object that matches the Json encoding. I was unable to see your example, so I will give you one of my own.
{"Aggregates": [{"ColumnName": "Some Value", "AggregateFunction": "Some Other Value"}], "GroupBy": true}
I would then create a class like this one.
public class JsonAggregates
{
public List<Aggregate> Aggregates { get; set; }
public string GroupBy { get; set; }
}
public class Aggregate
{
public string ColumnName {get; set;}
public string AggregateFunction {get; set;}
}
You can then encode the Json to this new data type with the following code.
using (Stream s = GenerateStreamFromString(json))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(JsonAggregates));
JsonAggregates aggregate = (JsonAggregates)serializer.ReadObject(s);
}

Convert json to a C# array?

Does anyone know how to convert a string which contains json into a C# array. I have this which reads the text/json from a webBrowser and stores it into a string.
string docText = webBrowser1.Document.Body.InnerText;
Just need to somehow change that json string into an array. Been looking at Json.NET but I'm not sure if that's what I need, as I don't want to change an array into json; but the other way around. Thanks for the help!

just take the string and use the JavaScriptSerializer to deserialize it into a native object. For example, having this json:
string json = "[{Name:'John Simith',Age:35},{Name:'Pablo Perez',Age:34}]";
You'd need to create a C# class called, for example, Person defined as so:
public class Person
{
public int Age {get;set;}
public string Name {get;set;}
}
You can now deserialize the JSON string into an array of Person by doing:
JavaScriptSerializer js = new JavaScriptSerializer();
Person [] persons = js.Deserialize<Person[]>(json);
Here's a link to JavaScriptSerializer documentation.
Note: my code above was not tested but that's the idea Tested it. Unless you are doing something "exotic", you should be fine using the JavascriptSerializer.

using Newtonsoft.Json;
Install this class in package console
This class works fine in all .NET Versions, for example in my project: I have DNX 4.5.1 and DNX CORE 5.0 and everything works.
Firstly before JSON deserialization, you need to declare a class to read normally and store some data somewhere
This is my class:
public class ToDoItem
{
public string text { get; set; }
public string complete { get; set; }
public string delete { get; set; }
public string username { get; set; }
public string user_password { get; set; }
public string eventID { get; set; }
}
In HttpContent section where you requesting data by GET request
for example:
HttpContent content = response.Content;
string mycontent = await content.ReadAsStringAsync();
//deserialization in items
ToDoItem[] items = JsonConvert.DeserializeObject<ToDoItem[]>(mycontent);

Yes, Json.Net is what you need. You basically want to deserialize a Json string into an array of objects.
See their examples:
string myJsonString = #"{
"Name": "Apple",
"Expiry": "\/Date(1230375600000+1300)\/",
"Price": 3.99,
"Sizes": [
"Small",
"Medium",
"Large"
]
}";
// Deserializes the string into a Product object
Product myProduct = JsonConvert.DeserializeObject<Product>(myJsonString);

Old question but worth adding an answer if using .NET Core 3.0 or later. JSON serialization/deserialization is built into the framework (System.Text.Json), so you don't have to use third party libraries any more. Here's an example based off the top answer given by #Icarus
using System;
using System.Collections.Generic;
namespace ConsoleApp
{
class Program
{
static void Main(string[] args)
{
var json = "[{\"Name\":\"John Smith\", \"Age\":35}, {\"Name\":\"Pablo Perez\", \"Age\":34}]";
// use the built in Json deserializer to convert the string to a list of Person objects
var people = System.Text.Json.JsonSerializer.Deserialize<List<Person>>(json);
foreach (var person in people)
{
Console.WriteLine(person.Name + " is " + person.Age + " years old.");
}
}
public class Person
{
public int Age { get; set; }
public string Name { get; set; }
}
}
}

One Situation that wasn't covered in the other responses is when you don't know the type of what the JSON object contains. That was my case as I needed to be able to NOT type it and leave it dynamic.
var objectWithFields = js.Deserialize<dynamic[]>(json);
Note: it is definitely preferred to have a type, in some cases, it is not possible, that's why I added this answer.