WebAPI：クエリ文字列を含むPostAsyncは機能しません

Question

1つの文字列型パラメータを取るサンプルWeb APIのアクションを参照してください。

[RoutePrefix("api/customer")] 
public class CustomerController : ApiController 
{ 

     [HttpPost, Route("DeleteCustomer")] 
     public HttpResponseMessage DeleteProduct(string customerID) 
     { 
      HttpResponseMessage response = null; 
      Customer customer = repository.Get(customerID); 
      if (customer == null) 
      { 
       var message = string.Format("No customer found by the ID {0}", customerID); 
       HttpError err = new HttpError(message); 
       response = Request.CreateErrorResponse(HttpStatusCode.ExpectationFailed, err); 
       response.ReasonPhrase = message; 
      } 
      else 
      { 
       if(repository.Remove(customerID)) 
       { 
        response = Request.CreateResponse<Customer>(HttpStatusCode.Created, customer); 
        response.ReasonPhrase = "Customer successfully deleted"; 
       } 
       else 
       { 
        var message = string.Format("Due to some error customer not removed"); 
        HttpError err = new HttpError(message); 
        response = Request.CreateErrorResponse(HttpStatusCode.ExpectationFailed, err); 
        response.ReasonPhrase = message; 
       } 
      } 


      return response; 
     } 

} 

とHTTPクライアントとこの下の方法のように呼び出すことが、動作していないと

private void btnDelete_Click(object sender, EventArgs e) 
{ 
    var uri = new Uri(ConfigurationManager.AppSettings["baseAddress"] + "/api/customer/DeleteCustomer"); 

    var content = new FormUrlEncodedContent(new[] 
    { 
     new KeyValuePair<string, string>("customerID", "CUS01") 
    }); 

    try 
    { 
     using (var client = new HttpClient()) 
     { 
      using (var response = client.PostAsync(uri, content).Result) 
      { 
       if (response.IsSuccessStatusCode) 
       { 
        MessageBox.Show(response.ReasonPhrase); 
       } 
       else 
       { 
        Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase); 
        var dict = JsonConvert.DeserializeObject<Dictionary<string, string>>(response.Content.ReadAsStringAsync().Result); 
        MessageBox.Show(dict["Message"]); 
       } 
      } 
     } 
    } 
    catch (HttpRequestException ex) 
    { 
     // catch any exception here 
    }    

} 

私のコードを見て、私はコードを呼び出すにはミスを犯した場所を教えてくださいいくつかのいずれかが見つかりませんエラーを与えます？おかげ

Answer 1

[RoutePrefix（ "API /顧客"）] パブリッククラスCustomerController：ApiController {

[HttpPost, Route("DeleteCustomer")] 
    public HttpResponseMessage DeleteProduct([FromBody]string customerID) 
    { 
     HttpResponseMessage response = null; 
     Customer customer = repository.Get(customerID); 
     if (customer == null) 
     { 
      var message = string.Format("No customer found by the ID {0}", customerID); 
      HttpError err = new HttpError(message); 
      response = Request.CreateErrorResponse(HttpStatusCode.ExpectationFailed, err); 
      response.ReasonPhrase = message; 
     } 
     else 
     { 
      if(repository.Remove(customerID)) 
      { 
       response = Request.CreateResponse<Customer>(HttpStatusCode.Created, customer); 
       response.ReasonPhrase = "Customer successfully deleted"; 
      } 
      else 
      { 
       var message = string.Format("Due to some error customer not removed"); 
       HttpError err = new HttpError(message); 
       response = Request.CreateErrorResponse(HttpStatusCode.ExpectationFailed, err); 
       response.ReasonPhrase = message; 
      } 
     } 


     return response; 
    } 

}

あなたは、メソッドのパラメータで[FromBody]キーワードを追加してもらえますか？