自定义模型 Binders 不从Swagger UI调用

我在我的WebApi项目中使用.Net framework 4.6.1和Swashbuckle 5.3.2版 . Swagger UI没有提供将输入作为请求主体发送到使用自定义模型 Binders 的POST Api的选项 .

- Model Used :

[ModelBinder(typeof(FieldValueModelBinder))]
    public class Employee
    {
        public int EmployeeID { get; set; }
        public string EmployeeName { get; set; }
        public string City { get; set; }
    }

- API Post method used:

[HttpPost]
    // POST: api/Employee
    public HttpResponseMessage Post([ModelBinder(typeof(FieldValueModelBinder))]Employee emp)
    {
        if (!ModelState.IsValid)
            return Request.CreateResponse(HttpStatusCode.BadRequest, "Please provide valid input");
        else
            //Add Employee logic here
            return Request.CreateResponse(HttpStatusCode.OK, "Employee added sucessfully");
    }

- Model Binder used :

public class FieldValueModelBinder : System.Web.Http.ModelBinding.IModelBinder
{
    /// <summary>
    /// Store received data in API in KeyValuePair
    /// </summary>
    private List<KeyValuePair<string, string>> kvps;

    /// <summary>
    /// Storing error while binding data in Model class
    /// </summary>
    private Dictionary<string, string> dictionaryErrors = new Dictionary<string, string>();

    /// <summary>
    /// Implementing Base method and binding received data in API to its respected property in Model class
    /// </summary>
    /// <param name="actionContext">Http Action Context</param>
    /// <param name="bindingContext">Model Binding Context</param>
    /// <returns>True if no error while binding. False if any error occurs during model binding</returns>
    public bool BindModel(HttpActionContext actionContext, System.Web.Http.ModelBinding.ModelBindingContext bindingContext)
    {
        try
        {
            var bodyString = actionContext.Request.Content.ReadAsStringAsync().Result;
            if (actionContext.Request.Method.Method.ToUpper().Equals("GET"))
            {
                var uriContext = HttpUtility.ParseQueryString(actionContext.Request.RequestUri.Query);
                if (uriContext.HasKeys())
                {
                    this.kvps = uriContext.AllKeys.ToDictionary(k => k, k => uriContext[k]).ToList<KeyValuePair<string, string>>();
                }
            }
            else if (!string.IsNullOrEmpty(bodyString))
            {
                this.kvps = this.ConvertToKvps(bodyString);
            }
            else
            {
                bindingContext.ModelState.AddModelError(bindingContext.ModelName, "Please provide valid input data.");
                return false;
            }
        }
        catch (Exception ex)
        {
            bindingContext.ModelState.AddModelError(bindingContext.ModelName, "Please provide data in a valid format.");
            return false;
        }

        // Initiate primary object
        var obj = Activator.CreateInstance(bindingContext.ModelType);
        try
        {
            this.SetPropertyValues(obj);
        }
        catch (Exception ex)
        {
            if (this.dictionaryErrors.Any())
            {
                foreach (KeyValuePair<string, string> keyValuePair in this.dictionaryErrors)
                {
                    bindingContext.ModelState.AddModelError(keyValuePair.Key, keyValuePair.Value);
                }
            }
            else
            {
                bindingContext.ModelState.AddModelError("Internal Error", ex.Message);
            }

            this.dictionaryErrors.Clear();
            return false;
        }

        // Assign completed Mapped object to Model
        bindingContext.Model = obj;
        return true;
    }

我面临以下问题：

• 当我们在post方法中使用'ModelBinder'时，Swagger UI正在显示此屏幕，其中输入参数在查询字符串中发布，并且调用CustomModelBinder并尝试读取请求主体以执行模型绑定和验证，并在此情况下获取null .

Public HttpResponseMessage Post（[ModelBinder（typeof（FieldValueModelBinder））] Employee emp）

• 当我们在post方法中使用'FromBody'时，Swagger UI会显示此信息
  屏幕，我们可以在请求正文中发送输入，但在此
  case不调用CustomModelBinder，我们无法执行模型绑定和验证 .

public HttpResponseMessage Post（[FromBody] Employee emp）

• 当我们尝试使用'modelbinder'和'frombody'时，Swagger UI将输入作为查询，我们得到以下响应：

尝试使用Postman，API工作正常，我们能够在请求体中传递输入并获得正确的输出 . 在模型状态无效的情况下，自定义模型绑定也可以工作并填充错误消息，然后我们可以使用这些消息在响应中发送 .

需要更改什么以在将输入数据发布到请求正文中的API时从Swagger UI调用自定义模型 Binders . 请建议 .