come leggere i dati di moduli multiparte in .net web api controller

Question

public class Sampleontroller:apicontroller 
{  
    public void PostBodyMethod() { 
     HttpRequestMessage request=this.request; 
    //How to read the multi part data in the method 
    } 
} 

Sto inviando un multiparte dati al controller webapi. Come leggere il contenuto nel metodo?

Answer 1

Dai un'occhiata alla l'articolo di Mike Wasson: http://www.asp.net/web-api/overview/working-with-http/sending-html-form-data,-part-2

Oppure, se si sta facendo il caricamento di file, qui: www.strathweb.com/2012/08/a-guide-to-asynchronous-file-uploads-in-asp-net-web-api-rtm/

Answer 2

Un 'async' esempio:

public async Task<HttpResponseMessage> PostSurveys() 
    { 
     // Verify that this is an HTML Form file upload request 
     if (!Request.Content.IsMimeMultipartContent("form-data")) 
     { 
      return Request.CreateResponse(HttpStatusCode.BadRequest); 
     } 

      //Destination folder 
      string uploadFolder = "mydestinationfolder"; 

      // Create a stream provider for setting up output streams that saves the output under -uploadFolder- 
      // If you want full control over how the stream is saved then derive from MultipartFormDataStreamProvider and override what you need.    
      MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(uploadFolder);     
      MultipartFileStreamProvider multipartFileStreamProvider = await Request.Content.ReadAsMultipartAsync(streamProvider); 

      // Get the file names. 
      foreach (MultipartFileData file in streamProvider.FileData) 
      { 
       //Do something awesome with the files.. 
      } 
}