How to prevent '\' in json from being escaped

Question

There is a Json string that needs to be deserialized into an instance. The value of one of the properties is a string prefixed with [ \ ]. How can I keep this escape character [ \ ] in the instance?

    internal class Program
    {
        static void Main(string[] args)
        {
            string jsonString = "{\"name\": \"user\", \"id\": \"\dddd\"}";
            Student stu = JsonConvert.DeserializeObject<Student>(jsonString);
        }
    }
    class Student
    {
        public string Id { get; set; }
        public string Name { get; set; }
    }

The property "Id" of the "stu" should be "\dddd", rather than "dddd". How do I need to modify the property value for "id" in Json string.

Answer 1

Hi @AnonymousKKYY ,Welcome to Microsoft Q&A,

In JSON, the backslash (\) is a special character, so it needs to be written as \\ to represent a real \.

In C# strings, the backslash is also a special character, so in C# code, the \\ in JSON needs to be escaped once more, written as \\\\.

After JSON parsing, stu.Id will correctly contain \dddd without losing the backslash.

string jsonString = "{\"name\": \"user\", \"id\": \"\\\\dddd\"}"; 

Best Regards,

Jiale

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