Add Integer Data Type in Multipart Form Content C# MVC

Question

 using (var multipartFormContent = new MultipartFormDataContent())
    {
    
    
     HttpClient httpClient = new HttpClient();
     multipartFormContent.Add( seq, "SequenceId"); // **

    }

** I want to send the "seq" as an integer in request as the HTTP Request is multipart form request it takes the strings. Any way to pass the integer here Thanks in advance!