HttpPostedFileBase è nullo quando si caricano file con Angular

Question

Uso Angolare in combinazione con MVC. Quando voglio caricare un file, lo HttpPostedFileBase è nullo.

html:

<input type="file" data-ng-model="fileName" onchange="angular.element(this).scope().fileInputChanged(this)"> 

angolare:

scope.fileInputChanged = function (element) { 
    scope.$apply(function (scope) { 
     console.log('files:', element.files); 

     _.each(element.files, function (element, index, list) { 
      scope.files.push(element); 
     }); 
    }); 
} 

scope.uploadDocuments = function() { 
    var formData = new FormData(); 

    // add uploaded files to form data object 
    for(var i in scope.files){ 
     formData.append("uploadedFile", scope.files[i]); 
    } 

    // create xml http request object 
    var httpRequest = new XMLHttpRequest(); 
    httpRequest.upload.addEventListener("progress", uploadProgress, false); 
    httpRequest.addEventListener("load", uploadComplete, false); 
    httpRequest.addEventListener("error", uploadFailed, false); 
    httpRequest.addEventListener("abort", uploadCanceled, false); 
    httpRequest.open("POST", "/Customer/UploadDocuments"); 

    // make progress bar visible 
    scope.progressVisible = true; 

    // send the request to the server with the form data 
    httpRequest.send(formData); 
} 

// Private functions 
function uploadProgress(event) { 
    scope.$apply(function() { 
     if (event.lengthComputable) { 
      scope.progressValue = Math.round(event.loaded * 100/event.total); 
     } 
     else { 
      scope.progressValue = "Kan progressie niet berekenen"; 
     } 
    }); 
} 

function uploadComplete(event) { 
    scope.hideForm(false); 
} 

function uploadFailed(event) { 
    alert("Het uploaden van de documenten is mislukt."); 
} 

function uploadCanceled(event) { 
    scope.$apply(function() { 
     scope.progressVisible = false; 
    }); 
} 

MVC:

public void UploadDocuments(HttpPostedFileBase file) 
{ 

} 

ecco come le mie intestazioni di richiesta assomigliano:

Accept:*/* 
Accept-Encoding:gzip,deflate,sdch 
Accept-Language:en-US,en;q=0.8,nl;q=0.6 
Connection:keep-alive 
Content-Length:380863 
Content-Type:multipart/form-data; boundary=----WebKitFormBoundaryc67wmYYq1T5VAMlT 
Cookie:ASP.NET_SessionId=rgwgky0zymvb2ppg3jozrn2s; __ngDebug=false; .ASPXAUTH=A54883879090E307D871F8293C805B3B50D1DDFAD1CE5B05D7284426D895370CBBD75D25B7012D384A69CAB265783BDA8F05B1BA02E0121814F45B39E15520EC35408F19DF3345B5DB7F5502886D8696 
Host:localhost:15982 
Origin:http://localhost:15982 
Referer:http://localhost:15982/ 
User-Agent:Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36 

E qui il carico utile:

------WebKitFormBoundaryc67wmYYq1T5VAMlT 
Content-Disposition: form-data; name="uploadedFile"; filename="deukjes_deur_2.jpg" 
Content-Type: image/jpeg 

Che cosa devo fare per ottenere questo lavoro?

Answer 1

Questo perché i dati del modulo sono stati assegnati al nome di uploadedFile, tuttavia l'azione prende un parametro denominato file. Modificare il nome del parametro, in questo modo:

public void UploadDocuments(HttpPostedFileBase uploadedFile) 
{ 
}