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POHow to handle an ajax upload file with SVC?
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  1. POHow to handle an ajax upload file with SVC?
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    copied!<p>I'm trying to upload a single file (not image) using jQuery Ajax to a WCF web service (svc). I finally got the web.config right for transport, and my SVC is receiving something, but I'm at a loss as to how to get and process the incoming form content...</p> <pre><code>&lt;input id="ipt_file" type="file" /&gt; &lt;a href='#' onclick="UploadFile();" data-role='button'&gt;Upload&lt;/a&gt; </code></pre> <hr> <pre><code>var UploadFile = function () { var file_object = $('#ipt_file')[0].files[0]; var form_data = new FormData(); form_data.append('file', file_object); var xhr_upload = $.ajax({ type: "POST", headers: { "Cache-Control":"no-cache", "X-Session":"12345678" }, url: "../Upload.svc/UploadJobFile", data: form_data, processData: false, contentType: false, dataType: "json", success: function (msg) { if (typeof (msg) === "object") { var _upload = $.parseJSON(msg.d); alert(_upload.status + ': ' + _upload.msg); }; } }); }; </code></pre> <hr> <pre><code>[ServiceContract] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class Upload { [OperationContract(Name="UploadJobFile")] [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedResponse, ResponseFormat = WebMessageFormat.Json)] [return: MessageParameter(Name = "d")] public string UploadJobFile() { string response = string.Empty; HttpRequest request = HttpContext.Current.Request; string session_id = request.Headers["X-Session"]; // // ??? need the request file or body // if (request.ContentLength &gt; 0) { response = "OK, content length= " + request.ContentLength.ToString(); // works, returns ~ file size } else { response = "fail"; } return response; } } </code></pre> <hr> <p>Unfortunately, request.Form["file"], request.Form[0], and request.Params don't seem to work despite the many posts I've read that claim otherwise. If I can't access the request body, I can't create a byte array, stream, or declare it a HttpPostedFile... (actually all I will be doing is setting up a new request to pass it and some additional params to a data service).</p> <p>What am I missing?</p>
 

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