Need a single backslash in JSON response using ASP.NET Web API. The following is the object that been converted to JSON:

public RunTypeCanNotContainSpecialCharacters()
{
    SourceErrorCode = ApiExceptionCode.RunTypesErrorCodes.RunTypeCanNotContainSpecialCharacters;
    StatusCode = HttpStatusCode.BadRequest;
    ErrorCode =  ApiExceptionCode.RunTypesErrorCodes.RunTypeCanNotContainSpecialCharacters;
    Scenario =  "{The following special characters are not supported.[ '/', '#', '?', ',', '\\']}";    
}

On object creation if I keep single slash then it gets omitted in the response, but on using more than one slash, it keeps that number of slashes in the response object.

During debugging, I found out that during the last line of constructor i.e is for Scenario property assignment everything is happening.

I have tried using raw string i.e using @ but this add extra backslash in case of ASP.NET, but in console apps it shows single backslash.

In response I want the following output specifically for userMessage:

"errors": 
[
    {
        "userMessage": "{Key:The following special characters are not supported.[ '/', '#', '?', ',', '']}",
        "errorCode": "RunTypesErrorCodes.RunTypeCanNotContainSpecialCharacters",
        "devMessage": "No error arguments available.",
        "moreInfo": null
    }
]

I tried many ways like JsonConvert.SerializeObject, Json.Encode and Regex.Unescape – but none are working.

These characters are not allowed in PartitionKey and RowKey