The MultipartFormData,It's support http request body build when the mediaType is multipart/form-data

download the MultipartFormData.cs and include to your project

and then

using AimaTeam.Http;

// param

var param_id = new { key = "id", value = 123456 }; var param_name = new { key = "name", value = "Mr-hai" };

// data

var data_file = new { key = "file", filename = "my.jpg", data = new byte[2] { 10, 11 } };

// must excute End() when all param/files Added

using (var formData = new MultipartFormData() .AddParameter(param_id.key, param_id.value.ToString()) .AddParameter(param_name.key, param_name.value) .AddFileObject(data_file.key, data_file.filename, data_file.data) .End()) { // Get multipart/form-data as bytes var bytes = formData.GetDataBytes();

// Get the multipart/form-data as Stream
var stream = formData.GetDataStream();

// Get the Boundary
var boundary = formData.Boundary;

}

more infomations,you can find in MultipartFormData_sample.cs