I able to upload my file through uploadify + .ashx, but the problem is I always get ContentType = application/octet-streamLets say I upload an image, I expected to return me "image/pjpeg", but it always return "application/octet-stream" no matter what file I uploaded.how to get the correct contentType in .ashx
View 1 Replies
I'm getting this message when going to a web app that accesses my service.
"The content type text/html of the response message does not match the content type of the binding (text/xml; charset=utf-8)..."
The thing is, it happens once in a while even when no changes have been made to the service or the web app. And I can make it go away most of the time by going directly to the .svc?wsdl page in my browser and then coming back to the web app.
In my web application I use an ashx file to write a file to the browser. I've noticed that there's no compression over the .ashx file, but only over my .aspx files.
Is it possible to compress .ashx? And if it is possible, how?
Currently I use global.asax to handle the compression:
<%@ Application Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.IO.Compression" %>
<script runat="server">
void Application_PreRequestHandlerExecute(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;.......
As you can see only files which inherit from 'Page' are compressed, and my ashx file is not of type Page. So I added a condition and now it works just fine:
if (!(app.Context.CurrentHandler is Page ||
app.Context.CurrentHandler.GetType().Name == "SyncSessionlessHandler" ||
app.Context.CurrentHandler is ViewMht // This is the type I had to add
) ||
app.Request["HTTP_X_MICROSOFTAJAX"] != null)
return;
I need to now how to get a value of a input type="hidden" in a ashx page.
View 3 RepliesI am wishing to retrive picture stored in sql server database to web form using gridview control. I have created a Handler.ashx file with following coding:
[Code]....
And in the aspx page I am calling this as:
[Code]....
But when I am executing this project, it prompts following error:
[Code]....
I am uploading a file on a MVC Action. The file I am uplading is a PDF document.However, on the controller I get "application/octet-stream" as ContentType instead of "application/pdf".Do I need to install Adobe Acrobat Reader on the system so that a PDF file is recongnized?
View 4 RepliesI need to display pdf using my web application each time user clicks on image icon.On clicking the image, I will call another web application(imageUrl) which will open up the pdf.Please find the code below:
HttpWebRequest Request = (HttpWebRequest)WebRequest.Create(imageUrl);
Request.UserAgent =
"Client Cert Sample";"
[code]...
In order to support a legacy application that's in the field, I need my ASP.NET MVC app to return an empty response that also has a Content-Type. One of IIS, ASP.NET, or ASP.NET MVC is removing my Content-Type when I send back a null response. Is there any way around this? (While not requiring an empty response with a set Content-Type would obviously be the ideal solution, the clients are already out there, and many of them cannot be upgraded.)
EDIT: Since there was a request for code: I'm proxying the request from the new web application to the one that older clients rely on. To do this, I have a subclass of ActionResult, called LegacyResult, that you can simply return for those methods that need to be handled by the old software. This is the relevant part of its code:
public override void ExecuteResult(ControllerContext context)
{
using (var legacyResponse = GetLegacyResponse(context))
{
var clientResponse = context.HttpContext.Response;
clientResponse.Buffer = false;
clientResponse.ContentType = legacyResponse.ContentType; /* Yes, I checked that legacyResponse.ContentType is never string.IsNullOrEmpty */
if (legacyResponse.ContentLength >= 0) clientResponse.AddHeader("Content-Length", legacyResponse.ContentLength.ToString());
var legacyInput = legacyResponse.GetResponseStream();
using (var clientOutput = clientResponse.OutputStream)
{
var rgb = new byte[32768];
cb;
while ((cb = legacyInput.Read(rgb, 0, rgb.Length)) > 0)
{
clientOutput.Write(rgb, 0, cb);
}
clientOutput.Flush();
}
}
}
If legacyInput has data, then Content-Type is set appropriately. Otherwise, it's not. I can actually kluge the old backend to send an empty v. non-empty response for exactly the same request, and observe the difference in Fiddler.
EDIT 2: Poking around with Reflector reveals that, if headers have not been written at the time that HttpResponse.Flush is called, then Flush writes out the headers itself. The problem is that it only writes out a tiny subset of the headers. One of the missing ones is Content-Type. So it seems that, if I can force headers out to the stream, I can avoid this problem.
I have a simple upload page using the html file element. I choose a .pdf file to upload and when I inspect the Content type of the file when it goes to server the value is "application/msword" instead of "application/pdf"
View 1 RepliesI am working in asp.net MVC & on the view has to show both json & xml content depending on some condition.
I have to change the content type of the page at runtime ie,
if the condition for json is fulfilled then set page contenttype = "text/json"
&
if the condition for xml is fulfilled then set page contenttype = "text/xml".
I have tried setting default content type on view as
<%
@
Page
Language="C#"
Inherits="System.Web.Mvc.ViewPage"
ContentType="text/json"%>
& in controller class if xml condition is fulfilled then chnage it like :
this.Response.Clear;
this.Response.ContentType = "text/xml";
BUT it didn't work for me .
I'd like to set the default content-type for web pages in my ASP.NET MVC application to text/html.
I know this can be done by adding a ContentType="text/html" to all of my <%Page%> elements, but I'd prefer to use the web.config instead. How can I do that?
Edit: I know that "text/HTML" is the ASP.NET default, but for unknown reasons Opera still tries to parse my web site as XHML unless I explicitly set the content-type in my <%Page%> element.
I'm busy writing a handler to serve various documents for download or presentation in web forms pages. The documents range from various image formats, to PDF, to MS Office documents, to generic binaries. My basic draft of the download process is as below:
[code]....
However, I have some misgivings about lumping all documents together as application/octet-stream, and I would prefer, if feasible, to use a more specific content type per document type. I have a DB table for document types where I could store this. Am I going in the right direction, and if so, where can I find a suitable starting list of content types for document types?
When inserting a binary file do you know what will be the correct content type for extensions like .txt or .gif or others not in your sample? Is there a list of correct content types?
View 1 RepliesI have a simple web site with two pages. One displays a list of files, and the other streams a file when it's clicked in the list. All was fine in production for 6 months, but now I have to move the site to Windows 2008/IIS7. I have it mostly working, but the files don't open properly (in Firefox) because my content-type header is being ignored. On the production site (IIS6) the headers are (using Fiddler):
HTTP/1.1 200 OK
Date: Tue, 09 Feb 2010 16:00:51 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Disposition: attachment; filename="myfile__foo.pdf"
Content-Length: 236841
Cache-Control: no-cache, no-store
Pragma: no-cache
Expires: -1
Content-Type: application/octet-stream
but on the test IIS7 server I get:
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 236841
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 2.0.50727
Content-Disposition: attachment; filename="myfile__foo.pdf"
Fiddler also reports a protocol violation and says "Content-length mismatch: Response Header claimed 236841 bytes, but server sent 238378 bytes."
My code looks like this:
[code]....
I have some code which I had working fine as below but now for some reason it throws the error "Cannot send a content-body with this verb-type".
Code:
try {
String destinationPath = ConfigurationManager.AppSettings["HostedPath"].ToString();
String sourcePath = ConfigurationManager.AppSettings["InternalPath"].ToString();
String destinationFolder = destinationPath + "/" + vendor;
String sourceFolder = sourcePath;
[Code] ....
Now I googled the error and found replies as below and changed the request stream lines in the above to the commented out response streams, this no longer throws the error but now no longer copies the file to the ftp site?
[URL] ....
I'm using an AsyncFileUploader and I want to check if the uploaded file is of valid type (e.g. jpg, gif, png, etc...) and if not the AsyncFileUploader should be colored in Red (like ErrorbackColor setting to Red)
Is this possible either using Javascript or FileUploader events?
I have a solution which has the following structure:
Solution
-Business Entity(project)
-Business Rules(project)
-DataAccess(project)
-Presentation(project)
-ClientBin
-Images
-Login(contains aspx pages, mastpage)
etc
Everything works absolutly fine in dev, but when I move the solution to IIS 7, I get this error! CompanyWeb is the masterpage, which is located in the login directory. Here is the page directive for login.aspx, which is the offending page
<%
@
Page
Title=""
Language="vb"
AutoEventWireup="false"
MasterPageFile="CompanyWeb.master"
CodeBehind="login.aspx.vb"
Inherits="Presentation.login" %>....................
I just tried to implement Uploadify on my website using this guide: [URL].....
I followed every step of the guide, but when I try to access the page with the upload the following script runs, but the FileUpload stays a plain old FileUpload.
<script type = "text/javascript">
$(window).load(
function () {
$("#<%=FileUpload.ClientID %>").fileUpload({
'uploader': 'scripts/uploadify.swf',
[Code].....
I am using uploadify along with ASP.NET to upload files to my server. At the moment I have to recreate the folder structure and upload the images in batches per directory.Does anyone know of a way of using Uplodify or any other tool that would allow me to select a folder and upload the entire directory?
View 2 Replies I'm trying to use Uploadify in a ASP.NET webforms project. The problem is that my script is not calling the generic handler. Here is the script.
[code]....
I am using the jquery Uploadify plugin to upload multiple files. It works great on my development machine; however, when I run the code on the server I get an error that the upload.ashx generic handler (that Uploadify calls to save the file) is not found. Wondering what would prevent it from being found in the server environment. I have even put a copy of the file in every directory to no avail.
View 2 RepliesI'm using Uploadify to upload some images with ASP.NET. I use Response.WriteFile() in ASP.NET to return the result of the upload back to JavaScript. As specified in the documentation I'm using onAllComplete event to check for response string from ASP.NET.
The problem is it that the alert(response); is always undefined in JavaScript.
JavaScript code as below:
$(document).ready(function() {
var auth = "<% = Request.Cookies[FormsAuthentication.FormsCookieName]==null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value %>";
$('#btnUpdateProfileImg').uploadify({
[Code]....
Reason for the FormsAuthenticationTicket object is to pass the authentication cookie though when using the Uploadify with Firefox.
I have seen many examples where Response.Write returns a value back to the onAllComplete event. But all I get is undefined. I have also tried to use Context.Response.Write, this.Response.Write, HttpContext.Current.Response.Write. They all return undefined.
i'm just wondering whether i can use uploaify for uploading huge lot of file in sql server db. I think uploadify is the right tool for my project but i new to programming. All i want is save file name, file type, file size and actual file into sql server when start uploading the files..
View 1 RepliesI have an uploadify control working fine in a vb.net web application - however whenever I switch on cookieless session state in web.config (cookieless="true") - it stops working.
In my upload IHttpHandler I can see that the data stored by uploadify is nothing:
Private Function Process(ByVal context As HttpContext) As String
Dim File As HttpPostedFile
File = context.Request.Files("filedata") ' Nothing
Dim FileExt As String = context.Request("fileExt") ' Nothing, etc
...
Ajax tab change results init of uploadify, So upon tab change FileUploader turn back to its native mode, only allowing one file interaction
View 1 Replies
