Stringify key-value pairs in dictionary in C#

Stringify key-value pairs in dictionary in C#

In C#, you can convert a dictionary of key-value pairs to a string with each key-value pair separated by a delimiter using LINQ.

Here's an example of how to convert a dictionary to a string with the key-value pairs separated by a comma:

using System; using System.Collections.Generic; using System.Linq; public class Program { public static void Main() { Dictionary<string, int> dict = new Dictionary<string, int> { { "A", 1 }, { "B", 2 }, { "C", 3 } }; string result = string.Join(",", dict.Select(kv => $"{kv.Key}:{kv.Value}")); Console.WriteLine(result); // Output: A:1,B:2,C:3 } }

In this example, we create a Dictionary<string, int> with three key-value pairs. We then use LINQ to convert the dictionary to a string by selecting each key-value pair and formatting it as a string with the key and value separated by a colon. We then use string.Join to concatenate the formatted key-value pairs with a comma delimiter.

The resulting string will be "A:1,B:2,C:3". You can replace the comma delimiter with any other delimiter of your choice.

Examples

  1. "C# stringify key-value pairs in a dictionary"

    • Description: Search for ways to convert key-value pairs in a dictionary to a string representation in C#.
    Dictionary<string, int> myDictionary = new Dictionary<string, int> { { "One", 1 }, { "Two", 2 }, { "Three", 3 } }; string result = string.Join(", ", myDictionary.Select(kv => $"{kv.Key}: {kv.Value}")); Console.WriteLine(result);

  2. "C# convert dictionary to JSON string"

    • Description: Explore methods to convert a C# dictionary into a JSON-formatted string.
    Dictionary<string, string> myDictionary = new Dictionary<string, string> { { "Name", "John" }, { "Age", "25" }, { "City", "New York" } }; string jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(myDictionary); Console.WriteLine(jsonString);

  3. "C# dictionary to string with custom formatting"

    • Description: Learn how to customize the string formatting when converting a dictionary to a string in C#.
    Dictionary<string, double> myDictionary = new Dictionary<string, double> { { "Price1", 12.99 }, { "Price2", 24.95 }, { "Price3", 9.99 } }; string result = string.Join(", ", myDictionary.Select(kv => $"{kv.Key}: ${kv.Value:F2}")); Console.WriteLine(result);

  4. "C# dictionary to string with line breaks"

    • Description: Search for ways to convert a dictionary to a string with each key-value pair on a new line.
    Dictionary<string, string> myDictionary = new Dictionary<string, string> { { "Name", "Alice" }, { "Age", "30" }, { "Country", "Canada" } }; string result = string.Join(Environment.NewLine, myDictionary.Select(kv => $"{kv.Key}: {kv.Value}")); Console.WriteLine(result);

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