@copy_writes,
Use this logic.
[The image depicts a workflow in UiPath Studio that reads a JSON file, deserializes it, iterates through its properties, logs each property, and handles nested JSON objects recursively. (Captioned by AI)]
Variables:
[The image shows a table listing three variables… Answer from ashokkarale on forum.uipath.com
Top answer 1 of 16
1135
Json.NET does this...
string json = @"{""key1"":""value1"",""key2"":""value2""}";
var values = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);
More examples: Serializing Collections with Json.NET
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I did discover .NET has a built in way to cast the JSON string into a Dictionary<String, Object> via the System.Web.Script.Serialization.JavaScriptSerializer type in the 3.5 System.Web.Extensions assembly. Use the method DeserializeObject(String).
I stumbled upon this when doing an ajax post (via jquery) of content type 'application/json' to a static .net Page Method and saw that the method (which had a single parameter of type Object) magically received this Dictionary.
How do I convert a dictionary to a JSON String in C#? - Stack Overflow
I want to convert my Dictionary to JSON string. Does anyone know how to achieve this in C#? More on stackoverflow.com
C# - How to get data as a dictionary from JSON file
Godot Version 4.2.1 Mono Question There is this JSON file, I want to get all the data from it and make a dictionary with sub-dictionaries, i.e. the dictionary contains keys 0, 1, 2, and the values of the keys contain ano… More on forum.godotengine.org
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0
March 17, 2024json string to dictionary - Unity Engine - Unity Discussions
I have a simple json string {“1”:10,“2”:25,“3”:1,“4”:124,“7”:567} I have a Dictionary Dictionary Gameitems = new Dictionary (); What is the best way to get the json string into the dictionary? Is there a simple json parser that will do it or will i have to parse the json ... More on discussions.unity.com
0
April 13, 2020C# JSON System.Text.Json - How to extract an object from a dictionary or List<Dictionary<string, object>>(json) ?
It is probably better to use specific objects instead of Dictionary. It is possible to define a helper converter class that interprets strings as numbers or vice versa. 1 comment Show comments for this answer Report a concern ... Hi , thanks a lot for your answer, it works fine indeed. I couldn't figure out that FirstOrDefault method. To be fair, I would have liked/preferred to extract the objects and assign their values directly from the JSON ... More on learn.microsoft.com
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March 18, 2023Videos
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How to Parse JSON Data in C# - Coding Gems - YouTube
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Deserialize a Dictionary using Newtonsoft.Json or Json.NET Convert ...
Reddit
reddit.com › r/csharp › json to c# dictionary questions
r/csharp on Reddit: JSON to C# Dictionary questions
October 29, 2019 -
I don't quite understand a couple things. I found a bunch of code on how to deserialize JSON to a C# dictionary, but nothing that quite exactly matched what I wanted to do.
So I have some JSON that looks like this:
{
"Authorized" : [
{"Key" : "John", "Authorized_Buildings" : ["Building 1", "Building 3", "Building 5"]},
{"Key" : "Bob", "Authorized_Buildings" : ["Building 1", "Building 5"]},
{"Key" : "Joe", "Authorized _Buildings" : ["Building 2", "Building 3"]}
],
"Building Info" : [
{"Key" : "One", "Floors" : 4, "Exits" : "Multiple"},
{"Key" : "Two", "Floors" : 3, "Exits" : "One"}
]
}I would like to deserialize each of these JSON "Objects" into two different Dictionaries<string, Authorized> and Dictionary <string, buildingInfo>.
My issues are how do I only send the authorized objects to that class and the Building Info objects to that Dictionary? createAuthorizedDictionaryFromJSON(jo["Authorized"].ToString());
Second, how do I force the dictionary to use what I want as the key to the custom object? So for Building Info, I want two properties in the class. A floor int and an Exits string.
I appreciate any help.
Cheers,
Top answer 1 of 4
2
Default serialization will take a standard json object into a dictionary Ex: this will serialize properly public class DataModel { public Dictionary Values { get; set; } } { "values": { "name": "bob", "skill": "none" } } Tldr; although a dictionary is a collection type in .net, having unique keys makes it suitable as a handler for a loosely coupled JSON objects, so deserialization allows that to happen
2 of 4
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Not the most elegant solution, I'll grant you... but your model can be serialized like this: // usings/references using System.IO; using System.Runtime.Serialization; using System.Runtime.Serialization.Json; // class models [DataContract] class MyObject { [DataMember] public List Authorized { get; set; } [DataMember(Name = "Building Info")] public List BuildingInfo { get; set; } } [DataContract] class Authorized { [DataMember] public string Key { get; set; } [DataMember(Name = "Authorized_Buildings")] public List AuthorizedBuildings { get; set; } } [DataContract] class BuildingInfo { [DataMember] public string Key { get; set; } [DataMember] public int Floors { get; set; } [DataMember] public string Exits { get; set; } } // implementation code string json = "...your json..."; MyObject obj = new MyObject(); using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(json))) { var serializer = new DataContractJsonSerializer(obj.GetType()); obj = serializer.ReadObject(stream) as MyObject; stream.Close(); } // "obj" now holds the model data deserialized. // All the List types in the model classes could be arrays... the serializer won't care. Note that you have a typo in Joe's "Authorized_Buildings"... there's a space in the name. The MyObject class is just a placeholder because your json doesn't specify a contract name. There are many other ways to serialize/deserialize json data. This is just one.
Top answer 1 of 16
186
This answer mentions Json.NET but stops short of telling you how you can use Json.NET to serialize a dictionary:
return JsonConvert.SerializeObject( myDictionary );
As opposed to JavaScriptSerializer, myDictionary does not have to be a dictionary of type <string, string> for JsonConvert to work.
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143
Serializing data structures containing only numeric or boolean values is fairly straightforward. If you don't have much to serialize, you can write a method for your specific type.
For a Dictionary<int, List<int>> as you have specified, you can use Linq:
string MyDictionaryToJson(Dictionary<int, List<int>> dict)
{
var entries = dict.Select(d =>
string.Format("\"{0}\": [{1}]", d.Key, string.Join(",", d.Value)));
return "{" + string.Join(",", entries) + "}";
}
But, if you are serializing several different classes, or more complex data structures, or especially if your data contains string values, you would be better off using a reputable JSON library that already knows how to handle things like escape characters and line breaks. Json.NET is a popular option.
DEV Community
dev.to › thebuzzsaw › converting-dictionaries-in-system-text-json-474b
Converting Dictionaries in System.Text.Json - DEV Community
February 26, 2020 - I'm generally not OK with having to convert JSON to a string dictionary first and then to a non-string dictionary as a second step. It seems I am not alone in experiencing frustration at this. However, as much as I love to sit and complain about others' hard work, I decided to just do something about it. The documentation for creating ...
Unity
discussions.unity.com › unity engine
json string to dictionary - Unity Engine - Unity Discussions
April 13, 2020 - I have a simple json string {“1”:10,“2”:25,“3”:1,“4”:124,“7”:567} I have a Dictionary Dictionary<int, int> Gameitems = new Dictionary<int, int>(); What is the best way to get the json string into the dictionary? Is t…
Google Groups
groups.google.com › g › restsharp › c › 38x3tR1KztA
How to deserialize JSON to Dictionary , where keys are unknown prior?
Finally i figured out how to correctly deserialize JSON to Dictionary<string, class>, where keys are unknown prior
UiPath Community
forum.uipath.com › help
How to load json file into dictionary - Help - UiPath Community Forum
April 20, 2019 - Hi Everyone. Can anyone please tell me how to Load a JSON file into a dictionary. I have done up to deserialize JSON after that I took For each activity from there onwards I was Stuck. Thanks in advance Regards, CRN…
C-sharptutorial
c-sharptutorial.com › csharparticles › how-to-convert-json-object-to-dictionary-in-csharp
[SOLVED] - Convert Json to Dictionary in C#
JsonConvert belongs to the Newtonsoft.Json namespace. ... The following namespace should be used after installation. ... Dictionary<string,string>? jsonResult = JsonConvert.DeserializeObject<Dictionary<string,string>>(json == null ?
Newtonsoft
newtonsoft.com › json › help › html › DeserializeDictionary.htm
Deserialize a Dictionary
string json = @"{ 'href': '/account/login.aspx', 'target': '_blank' }"; Dictionary<string, string> htmlAttributes = JsonConvert.DeserializeObject<Dictionary<string, string>>(json); Console.WriteLine(htmlAttributes["href"]); // /account/login.aspx Console.WriteLine(htmlAttributes["target"]); // _blank
Newtonsoft
newtonsoft.com › json › help › html › serializedictionary.htm
Serialize a Dictionary
This sample serializes a dictionary to JSON.
Medium
akarshseggemu.medium.com › objective-c-how-to-convert-a-dictionary-to-json-string-752e410fead1
Objective-C: How to convert a dictionary to JSON string? | by Akarsh Seggemu, M.Sc. | Medium
June 25, 2022 - Here is an example on how to convert dictionary into JSON string, #import <Foundation/Foundation.h> int main (int argc, const char * argv[]) { NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Akarsh", @"name", nil]; NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:nil]; NSString *jsonString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"Value of json string %@", jsonString); return 0; }
Automation Anywhere
docs.automationanywhere.com › bundle › enterprise-v2019 › page › convert-json-to-dictionary.html
Convert JSON to Dictionary
This action enables you to extract JSON data to a dictionary variable to help read or process different nodes individually. Supports dictionary variables to store nested key-value pairs.
JD Bots
jd-bots.com › 2023 › 02 › 17 › convert-dictionary-to-json-object-in-c-example-code
Convert Dictionary to JSON Object in .NET C# | Example Code
February 17, 2023 - Note that you’ll need to include the using Newtonsoft.Json; statement at the top of your file in order to use the JsonConvert class. If you run the code I provided, the output will be a JSON string representation of the dict dictionary, which ...
Buildplease
buildplease.com › pages › json
How to Map Nested JSON Objects to a .NET Dictionary · Nick Chamberlain
We were able to use Json.NET’s LINQ to JSON to wrangle some oddly-shaped JSON into a Dictionary. Hope you find this helpful someday! Thanks for reading, and remember to sign up for my newsletter to make sure you get these tidbits delivered right to your inbox! CLICK HERE AND BECOME A BETTER .NET DEVELOPER EVERY WEEK!
Code Maze
code-maze.com › home › how to serialize a dictionary to json in c#
How to Serialize a Dictionary to JSON in C# - Code Maze
May 17, 2023 - We just need to create a custom converter and add it to our serializer options declaration: public sealed class SystemJsonCustomerInvoiceConverter : JsonConverter<Dictionary<Customer, List<Invoice>>> { public override void Write(Utf8JsonWriter writer, Dictionary<Customer, List<Invoice>> value, JsonSerializerOptions options) { writer.WriteStartObject(); foreach (var (customer, invoices) in value) { writer.WritePropertyName($"Customer-{customer.CustomerId:N}"); writer.WriteStartObject(); WriteCustomerProperties(writer, customer); WriteInvoices(writer, invoices); writer.WriteEndObject(); } writer.WriteEndObject(); } // Omitted for brevity }