Deserialize array of key value pairs using Json.NET

Deserialize array of key value pairs using Json.NET

In C#, you can use the Json.NET library to deserialize an array of key-value pairs into a dictionary object.

Assuming your JSON data looks like this:

[ { "key": "foo", "value": 123 }, { "key": "bar", "value": 456 }, { "key": "baz", "value": 789 } ]

You can deserialize it into a dictionary object like this:

using Newtonsoft.Json; using System.Collections.Generic; // Define a class to represent a key-value pair public class KeyValuePair { public string Key { get; set; } public int Value { get; set; } } // Deserialize the JSON data into a dictionary object string jsonData = "[ { \"key\": \"foo\", \"value\": 123 }, { \"key\": \"bar\", \"value\": 456 }, { \"key\": \"baz\", \"value\": 789 } ]"; List<KeyValuePair> pairs = JsonConvert.DeserializeObject<List<KeyValuePair>>(jsonData); Dictionary<string, int> dictionary = pairs.ToDictionary(pair => pair.Key, pair => pair.Value);

In this example, a class named KeyValuePair is defined to represent a single key-value pair. The JsonConvert.DeserializeObject method is used to deserialize the JSON data into a List<KeyValuePair> object.

Once the data is deserialized, the ToDictionary LINQ extension method is used to convert the list of key-value pairs into a dictionary object, with the Key property of each pair serving as the key in the dictionary and the Value property serving as the value. The resulting Dictionary<string, int> object can then be used in your code.

Examples

  1. "Json.NET Deserialize Array of Key-Value Pairs"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<List<KeyValuePair<string, object>>>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a List of KeyValuePair<string, object> using Json.NET.

  2. "Json.NET Deserialize Array of Key-Value Pairs with Custom Class"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; public class KeyValueModel { public string Key { get; set; } public object Value { get; set; } } var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<List<KeyValueModel>>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a List of custom class (KeyValueModel) objects using Json.NET.

  3. "Json.NET Deserialize Array of Key-Value Pairs with Dictionary"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<Dictionary<string, object>[]>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into an array of Dictionary<string, object> using Json.NET.

  4. "Json.NET Deserialize Array of Key-Value Pairs with ExpandoObject"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Dynamic; using System.Collections.Generic; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<List<ExpandoObject>>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a List of ExpandoObject using Json.NET.

  5. "Json.NET Deserialize Array of Key-Value Pairs with Tuple"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<List<Tuple<string, object>>>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a List of Tuple<string, object> using Json.NET.

  6. "Json.NET Deserialize Array of Key-Value Pairs with DynamicObject"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; using System.Dynamic; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<List<DynamicObject>>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a List of DynamicObject using Json.NET.

  7. "Json.NET Deserialize Array of Key-Value Pairs with Anonymous Type"

    • Code Implementation:
      using Newtonsoft.Json; using System; var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeAnonymousType(jsonString, new[] { new { Key = "", Value = (object)null } });
    • Description: Deserializes a JSON array representing key-value pairs into an array of an anonymous type using Json.NET.

  8. "Json.NET Deserialize Array of Key-Value Pairs with JsonConverter"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; [JsonConverter(typeof(KeyValuePairsConverter))] public class KeyValuePairsModel : List<KeyValuePair<string, object>> { } var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<KeyValuePairsModel>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a custom class (KeyValuePairsModel) using a custom JsonConverter (KeyValuePairsConverter) with Json.NET.

  9. "Json.NET Deserialize Array of Key-Value Pairs with JsonConverterAttribute"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; [JsonConverter(typeof(KeyValuePairsConverter))] public class KeyValuePairsModel : List<KeyValuePair<string, object>> { } var jsonString = "[{\"Key\":\"Name\",\"Value\":\"John\"},{\"Key\":\"Age\",\"Value\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<KeyValuePairsModel>(jsonString, new KeyValuePairsConverter());
    • Description: Deserializes a JSON array representing key-value pairs into a custom class (KeyValuePairsModel) using JsonConverterAttribute and a custom JsonConverter (KeyValuePairsConverter) with Json.NET.

  10. "Json.NET Deserialize Array of Key-Value Pairs with Custom JsonConverter and Naming Strategy"

    • Code Implementation:
      using Newtonsoft.Json; using System; using System.Collections.Generic; [JsonConverter(typeof(CustomKeyValuePairsConverter))] public class KeyValuePairsModel : List<KeyValuePair<string, object>> { } var jsonString = "[{\"name\":\"John\",\"age\":25}]"; var keyValuePairs = JsonConvert.DeserializeObject<KeyValuePairsModel>(jsonString);
    • Description: Deserializes a JSON array representing key-value pairs into a custom class (KeyValuePairsModel) using a custom JsonConverter (CustomKeyValuePairsConverter) with Json.NET and a custom naming strategy.

More Tags

stored-procedures keyboard-events jxl jquery-callback graphql-java partial asp.net-core-cli mat-table watson-assistant javadoc

More C# Questions

More Biochemistry Calculators

More Fitness-Health Calculators

More Trees & Forestry Calculators

More Animal pregnancy Calculators