/// <summary>
        /// 创建事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private async void Button_Click(object sender, RoutedEventArgs e)
        {
            if (password.Password != againpassword.Password)
            {
                MessageBox.Show("两次输入密码不一致");
            }
            List <string> roles = new List <string>();

            foreach (CheckBox item in roleNames.Children)
            {
                if (item.IsChecked == true)
                {
                    roles.Add(item.Content.ToString());
                }
            }

            UserRule user = new UserRule()
            {
                emailAddress = emailAddress.Text,
                userName     = userName.Text,
                name         = name.Text,
                password     = password.Password,
                surname      = surname.Text,
                roleNames    = roles.ToArray()
            };

            var result = await userRequest.CreateRequest(Uris.BaseUrl + Uris.User + "Create", user);

            if ((bool)result["success"])
            {
                NewId = result["result"]["id"].ToString();

                var re = await UploadImage();

                if (re != null && !(bool)re["success"])
                {
                    MessageBox.Show(re["error"]["message"].ToString());
                }
                else
                {
                    GoBack();
                }
            }
            else
            {
                MessageBox.Show(result["error"]["message"].ToString());
            }
        }