In my controller I have this method :
public Tuple<DataTable, DataTable> GraphData(JObject jsonData)
The object has this data :
"Wgraph": {
"GraphType": "Line",
"XAxisList": [
{
"Dimension": "[DimCustomer].[AddressLine1].[AddressLine1]",
"HIERARCHY": "[DimCustomer].[AddressLine1]"
}
],
"YAxisList": [
{
"MeasureExpression": "undefined",
"ChartType": "",
"IsSecondaryAxis": "False"
},
{
"MeasureExpression": "undefined",
"ChartType": "",
"IsSecondaryAxis": "False"
}
},
"DashboardName": "NewTest"
}
What I am trying to do it access the second value of "IsSecondaryAxis":"False" and change its value to TRUE
How can I retrieve this data ?
Thank you
You can access the second element of the array using:
var arr = jsonData["Wgraph"]["YAxisList"] as JArray;
arr[1]["IsSecondaryAxis"] = true;
As the first response of Lee Gunn, but using a dynamic object:
var arr = ((dynamic) jsonData).Wgraph.YAxisList;
arr[1]["IsSecondaryAxis"] = true;
The result is the same. Regards.
Related
So I have below call to a method where my argument is a json string of this type
var jsonWithSearchData = await querySearchData(jsonOut);
jsonOut ->
[
{
"data": {
"_hash": null,
"kind": "ENY",
"id": "t123",
"payload": {
"r:attributes": {
"lok:934": "#0|I"
},
"r:relations": {
"lok:1445": "15318",
"lok:8538": "08562"
},
"r:searchData": "",
"r:type": [
"5085"
]
},
"type": "EQT",
"version": "d06"
}
}
]
The querySearchData() returns me two list something like this :["P123","P124","P987"] and ["Ba123","KO817","Daaa112"]
I want to add this list in my r:searchData key above. The key inside my searchData i.e. r:Porelation and ClassA and ClassB remains static. So I would like my searchData in my input Json to finally become something like this.
"r:searchData": {
"r:Porelation":{
"ClassA": ["P123","P124","P987"],
"ClassB": ["Ba123","KO817","Daaa112"]
}
},
How can I do this? What I tried:
JArray jfinObject = JArray.Parse(jobjects);
jfinObject["r:searchData"]["r:relations"]["ClassA"] = JArray.Parse(ListofCode.ToString());
And I get below error:
System.Private.CoreLib: Exception while executing function: Function1.
Newtonsoft.Json: Accessed JArray values with invalid key value:
"r:searchData". Int32 array index expected.
There are a few ways you can add a node/object/array to existing json.
One option is to use Linq-to-Json to build up the correct model.
Assuming you have the json string described in your question, the below code will add your desired json to the r:searchData node:
var arr = JArray.Parse(json); // the json string
var payloadNode = arr[0]["data"]["payload"];
// use linq-to-json to create the correct object
var objectToAdd = new JObject(
new JProperty("r:Porelation",
new JObject(
new JProperty("r:ClassA", array1),
new JProperty("r:ClassB", array2))));
payloadNode["r:searchData"] = objectToAdd;
where array1 and array2 above could come from a linq query (or just standard arrays).
// Output:
{
"data": {
"_hash": null,
"kind": "ENY",
"id": "t123",
"payload": {
"r:attributes": {
"lok:934": "#0|I"
},
"r:relations": {
"lok:1445": "15318",
"lok:8538": "08562"
},
"r:searchData": {
"r:Porelation": {
"r:ClassA": [
"P123",
"P456"
],
"r:ClassB": [
"Ba123",
"Ba456"
]
}
},
"r:type": [
"5085"
]
},
"type": "EQT",
"version": "d06"
}
}
Online demo
Another option is to create the json from an object, which could be achieved using JToken.FromObject(). However, this will only work if you have property names which are also valid for C# properties. So, this won't work for your desired property names as they contain invalid characters for C# properties, but it might help someone else:
// create JToken with required data using anonymous type
var porelation = JToken.FromObject(new
{
ClassA = new[] { "P123", "P456" }, // replace with your arrays here
ClassB = new[] { "Ba123", "Ba456" } // and here
});
// create JObject and add to original array
var newObjectToAdd = new JObject(new JProperty("r:Porelation", porelation));
payloadNode["r:searchData"] = newObjectToAdd;
The use case is pretty simple in concept. I receive a json payload that has two properties on the root level:
instructions
base
Instructions are set of instructions that I am supposed to apply on the base json object.
For eg - according to the below payload,
I am supposed to traverse to the widgets within defaultWidgets of the base property.
Then replace it completely with whatever is the value of patchedValue.
Input Payload:
{
"instructions": [
{
"patchedPath": "defaultWidget.widgets",
"patchedValue": false,
}
],
"base": {
"defaultWidget": {
"hash": "ktocle2l0u527",
"layout": "6|6",
"managerId": "defaultWidget",
"widgets": [
{
"managerId": "defaultWidget",
"widgetId": "invCreateWid7",
"type": "standard",
"manifestPath": "nexxe.standard-section#0.0.0-next.11",
"defaultInputManifestPath": "nexxe.input#0.0.1-alpha.49",
"title": "scannedInvoice",
"children": [
{
"name": "tom"
}
],
"hash": "ktocle2lrgps9",
"directives": ""
}
]
}
}
}
The result should be :
{
"base": {
"defaultWidget": {
"hash": "ktocle2l0u527",
"layout": "6|6",
"managerId": "defaultWidget",
"widgets": false
}
}
}
Code:
var stringPayload = "{ \"instructions\": [ { \"patchedPath\": \"defaultWidget.widgets\", \"patchedValue\": false, } ], \"base\": { \"defaultWidget\": { \"hash\": \"ktocle2l0u527\", \"layout\": \"6|6\", \"managerId\": \"defaultWidget\", \"widgets\": [ { \"managerId\": \"defaultWidget\", \"widgetId\": \"invCreateWid7\", \"type\": \"standard\", \"manifestPath\": \"nexxe.standard-section#0.0.0-next.11\", \"defaultInputManifestPath\": \"nexxe.input#0.0.1-alpha.49\", \"title\": \"scannedInvoice\", \"children\": [ { \"name\": \"tom\" } ], \"hash\": \"ktocle2lrgps9\", \"directives\": \"\" } ] } }}";
var parsedPayload = JsonConvert.DeserializeObject(stringPayload);
var baseJ = parsedPayload.GetType().GetProperty("instructions").GetValue(parsedPayload, null);
string jsonString = JsonConvert.SerializeObject(parsedPayload);
I am stuck on the very initial steps , I am getting:
System.NullReferenceException: 'Object reference not set to an instance of an object.'
System.Type.GetProperty(...) returned null.
This is what QuickWatch says:
What's returned by DeserializeObject in this case is JObject so to start with you can cast to it:
var parsedPayload = (JObject) JsonConvert.DeserializeObject(stringPayload);
Then grab instructions and target to change:
var instructions = (JArray) parsedPayload["instructions"]; // cast to JArray
var result = parsedPayload["base"];
Then we can go over instructions and apply them:
foreach (var instruction in instructions) {
// grab target path and value
var targetPath = (string) ((JValue)instruction["patchedPath"]).Value;
var targetValue = (JValue)instruction["patchedValue"];
// temp variable to traverse the path
var target = result;
foreach (var part in targetPath.Split('.')) {
target = target[part];
}
// replace the value
target.Replace(targetValue);
}
Now result contains what was in base with instructions applied.
With Json.NET you can do that like this:
var json = File.ReadAllText("sample.json");
var semiParsedJson = JObject.Parse(json);
var instructions = (JArray)semiParsedJson["instructions"];
var #base = semiParsedJson["base"];
foreach (var instruction in instructions)
{
var path = (string)instruction["patchedPath"];
var newValue = (string)instruction["patchedValue"];
var toBeReplaced = #base.SelectToken(path);
toBeReplaced.Replace(newValue);
}
JObject.Parse parses the json string
With the index operator [] we retrieve the two top level nodes. - One of them is an array (that's why there is an explicit JArray cast)
The other one is a JToken
We iterate through the array and retrieve the path and the newvalue
We use the SelectToken to get the desired node and then apply the replacement via the Replace method.
Please bear in mind that this solution is not bulletproof. You might need to change the indexer operator to TryGetValue to be able to check existence before you perform any operation on the JToken.
You also need to check that the patchedPath is valid at all.
I am trying to get JSON data from an api.
I have this json with me:
{
"elements": [
{
"id": 1,
"name": "Bob",
"address": "abc street",
"hobbies": {
"indoor": "Games, reading books",
"outdoor": ""
}
},
{
"id": 2,
"name": "Mark",
"address": "def street",
"hobbies": {
"indoor": "Games, reading books",
"outdoor": ""
}
}
]
}
I have this code with me:
using(var httpClient = new HttpClient()) {
HttpResponseMessage response = httpClient.GetAsync("api_url_here").Result;
var studentJsonString = response.Content.ReadAsStringAsync().Result;
var Jsresult = new JavaScriptSerializer().Deserialize<dynamic>(studentJsonString).ToString();
JObject jObject = JObject.Parse(Jsresult);
IEnumerable<dynamic> listDyn = jObject[0].Select(items => new StudentModel// gives error here as whole
{
id = items["id"].ToString(),
name = items["name"].ToString(),
address= items["address"].ToString()
});
}
But when I am calling the above method but it is giving me an error:
'Accessed JObject values with invalid key value: 1. Object property name expected.'
What am I missing?
Why are you deserializing twice? The result of
JavaScriptSerializer().Deserialize(customerJsonString)
is already an object. You don't need to parse it again with JObject.Parse(). You can just do
JObject jObject= JObject.Parse(customerJsonString)
Furthermore the result of JObject.Parse() is a dictionary and not an array. It has properties, which you can access by their names. For instance
jObject["elements"]
But of course, the compiler can't possibly predict, that jObject["elements"] will be an IEnumerable, so you will have to make sure of that.
jObject.Value<JArray>("elements").Select(item => ...)
This reads the property elements, of jObject as a JArray.
I have two model classes IntroModel and PhonePageModel. These are both WCF contracts.
I'm calling an API that gives back JSON and lets say I have stored it in string format.
String myApiData = myAPI.getTodaysInfo();
Using a function enum parameter, I would like to deserialize into the correct type of model
IntroPageModel introPageModel = null;
PhonePageModel phonePageModel = null;
if (enumVal == myEnums.IntroPage)
{
introPageModel = JsonConvert.DeserializeObject<IntroPageModel>(myApiData);
}
else if (enumVal == myEnums.PhonePageModel)
{
phonePageModel = JsonConvert.DeserializeObject<PhonePageModel>(myApiData);
}
This leaves the problem later in my code though of checking which model isn't null to know which model to work with afterwards. Instead, could I use dynamic but still ensure the information from myApiData is validated properly based upon the correct WCF Page model?
dynamic myPageModel = null;
if (enumVal == myEnums.IntroPage)
{
myPageModel = JsonConvert.DeserializeObject<IntroPageModel>(myApiData);
}
else if (enumVal == myEnums.PhonePageModel)
{
myPageModel = JsonConvert.DeserializeObject<PhonePageModel>(myApiData);
}
Asuming that you your get todayinfo as result array than object it will be something like this:
[
[
{
"IntroModelid": 1,
"IntroModelname": "intro123",
"guid": "151512321312",
"introModelfunc": [
{
"funcid": 1,
"funcname": "func123"
}
]
}
],
[
{
"PhonePageModelid": 1,
"PhonePageModelname": "phone123",
"other": "other",
"phonenumers": [
{
"numersid": 1,
"numbers": 6789,
"status": "OK"
},
{
"numersid": 2,
"numbers": 12345,
"funcionamiento": "NO"
}
]
}
]
]
when you get your collection as this:
var myapidata = JsonConvert.DeserializeObject(myApiDataString);
you will have two ChildrenTokens = Count = 2
you can iterate this as you wish. Or you can pass to your class list
var myapidata = (JArray)JsonConvert.DeserializeObject(json);
var IntroPageModel = myapidata [0];
var PhonePageModel = myapidata [1];
Hope you find useful
I have a .NET Core 3.1 C# application reading the following JSON doc:
{
"info": {
"_postman_id": "b"
},
"item": [
{
"name": "GetEntityById via APIM",
"item": [
{
"name": "Call 1",
"url": {
"raw": "urlforcall1"
}
},
{
"name": "Call 2",
"url": {
"raw": "urlforcall2"
}
}
]
}
]
}
I want to select the value for each item\item\name and each item\item\url\raw.
So, I'd like to end up with "Call 1":"urlforcall1" and "Call 2":"urlforcall2".
I've been playing around and can grab the value from the raw token with the following:
var jObject = JObject.Parse(jsonString);
var urls = jObject.SelectTokens("..raw");
How can I grab the value from its parent's sibling, name?
I hope this code will help you
using Newtonsoft.Json.Linq;
using System;
namespace ConsoleApp3
{
class Program
{
static void Main(string[] args)
{
string json = #"
{
'info': {
'_postman_id': 'b'
},
'item': [
{
'name': 'GetEntityById via APIM',
'item': [
{
'name': 'Call 1',
'url': {
'raw': 'urlforcall1',
}
},
{
'name': 'Call 2',
'url': {
'raw': 'urlforcall2',
}
}
]
}
]
}";
dynamic d = JObject.Parse(json);
foreach(var item in d.item)
{
foreach(var innerItem in item.item)
{
Console.WriteLine($"'{innerItem.name}' : '{innerItem.url.raw}'");
}
}
}
}
}
Can be tested here https://dotnetfiddle.net/xDr90O
To answer your question directly, if you have a JToken you can navigate upward from there using the Parent property. In your case you would need to use it four times to get to the level you want:
The parent of the JValue representing the call URL string is a JProperty with the name raw
The parent of that JProperty is a JObject
The parent of that JObject is a JProperty with the name url
The parent of that JProperty is a JObject, which also contains the name property
From there you can navigate back down using indexer syntax to get the value of name.
So, you would end up with this:
var jObject = JObject.Parse(jsonString);
foreach (JToken raw in jObject.SelectTokens("..raw"))
{
string callName = (string)raw.Parent.Parent.Parent.Parent["name"];
string urlForCall = (string)raw;
}
You may flatten inner item array using SelectMany method into one sequence (since outer item is also an array), then get name and raw values directly by key
var jObject = JObject.Parse(jsonString);
var innerItems = jObject["item"]?.SelectMany(t => t["item"]);
foreach (var item in innerItems)
{
var name = item["name"];
var raw = item["url"]?["raw"];
}