How to create JSON string in C#

c# asp.net json
PositiveGuy picture PositiveGuy · Jun 29, 2009 · Viewed 663.8k times · Source

I just used the XmlWriter to create some XML to send back in an HTTP response. How would you create a JSON string. I assume you would just use a stringbuilder to build the JSON string and them format your response as JSON?

Answer

Orr picture Orr · Sep 29, 2012

Using Newtonsoft.Json makes it really easier: 

Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[] { "Small", "Medium", "Large" };

string json = JsonConvert.SerializeObject(product);

Documentation: Serializing and Deserializing JSON

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