winform使用restsharp調用接口上傳檔案

private void button1_Click(object sender, EventArgs e)
        {
            bool aa = UploadFile(@"D:\ecg_100020200117048.jpg");
            MessageBox.Show(aa.ToString());
        }
        public static bool UploadFile(string filePath)
        {
            try
            {
                var fileName = System.IO.Path.GetFileName(filePath);
                var client = new RestClient($"{GetPicturesServerBaseUrl()}api/uploadfile");
                var request = new RestRequest(Method.POST);
                request.AlwaysMultipartFormData = true;
                request.AddHeader("Content-Type", "multipart/form-data");
                request.AddFile("file", filePath);
                request.AddParameter("multipart/form-data", fileName, ParameterType.RequestBody);

                var response = client.Execute(request);

                return response.StatusCode == System.Net.HttpStatusCode.OK;

            }
            catch
            {
                return false;
            }



        }
 public static string GetPicturesServerBaseUrl()
        {
            return ConfigurationManager.AppSettings["PicturesServerBaseUrl"].Trim();
        }