Uploading Files Asynchronously In .NET (AsyncFileUpload And Flash Controls Not Suitable)
Jan 20, 2011
I have looked at various options for uploading files asynchronously in ASP.NET. the default Microsoft control does full postback, AsyncFileUpload control has only one button and cannot change the text and appearance and I need two buttons browse and upload. not interested in flash based controls. I found this
http://mattberseth.com/blog/2008/07/aspnet_file_upload_with_realti/.
html close to what I need. it uses iframe to achieve this, but I would like a simplified version of this. I just want to display an image while uploading, I don't need number of bytes transferred etc. how can I achieve this? I just need to upload the file asynchronously without page flickering and save the file to the server and update the page contents after the upload is complete.
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Similar Messages:
Sep 19, 2010
I'm using the asyncfileupload control, and have it woking to an extent. I'm able to upload the image to the relevant directory and save it's path to the database.The problem I'm having is that I am unable to upload a 2nd file once the first has completed without refreshing the page.
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Feb 10, 2010
I've got an ASP.NET web application (utilizing WebForms) and am using Uploadify to handle uploading large files. This is done by posting the file to an HttpHandler.
Example of code (simplified for demonstration purposes):
$(".uploadify").uploadify({[CODE]....
the progress bar being displayed doesn't actually reflect the progress of the upload, and shows the upload as being complete long before the file is actually uploaded. Therefore, the user interface effectively appears like it is doing nothing while the progress bar stays at 100%, until the file is complete.
In some cases, the upload simply fails after reaching 100%, with the OnComplete event never getting fired, almost like the response from the HttpHandler is getting lost in transit, even though the file is saved.I've tried both Flajaxian and SWFUpload, and experienced similar issues with the progress bar being completely out of sync with actual upload progress, indicating completion well before the upload was actually complete.
This problem is not apparent when testing locally, or with small files (typically under a few megabytes) as these tend to upload fairly quickly and there's little or no lag between the file being uploaded and the progress bar completing.Is there any way of using a Flash upload solution (such as Uploadify) with an ASP.NET web application and have the progress bar better represent the actual progress of the upload?
Update: Eventually, I gave up trying to use a flash based uploader as they seemed a bit too awkward, especially the progress bar, which didn't represent the actual progress of the upload at all. Replaced this with Brettle NeatUpload instead which works much better.
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Feb 5, 2010
I have a Web application in which I'm trying to use the new AJAX AsyncFileUpload control. I want to use it in the ModalPopupExtender, and I want to embed these two AJAX controls in a user control (photo_upload.ascx) for re-use in different parts of the application. (I understand that this wasn't possible with the older FileUpload control but that it is with this most recent AJAX tool.)
Presently, I merely redirect the user to an upload.aspx page that includes the photo_upload.ascx control (see the sequential screenshots in the attached image); but while this way of doing things "works," it becomes very confusing for the user who has already clicked an upload button or two. In other words, when the "Add Yours" button is clicked, the panel with the "(1) Upload Photo" button unhides; and when the Upload Photo button is then clicked, the user is redirected to the control in the bottom screen. I would gladly bypass the 1, 2, 3 steps in the second screen after the "Add Yours" button is clicked and redirect straightway to the upload control (in the bottom screen, which I will like to be in a ModalPopupExtender), but I also need a way for them to enter a caption that will go with the uploaded photo.
(image removed)
My VB code for the above steps is included below. I would appreciate any fresh ideas on how to accomplish my above objectives.
[Code]....
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Aug 24, 2010
I have added AsyncFileUpload to creata user wizard control. When I tried to upload the file this control seemed to work fine an show confirmation at the end. But when I checked the website no file has been uploaded at all.know why its not uploading the files/images
[Code]....
[Code]....
My folder hierarchy is Users/Resources/Avatars/UsernameThere is also an error appears for this line of code-
Error: CS0176:Member'System.Web.UI.ScriptManager.RegisterClientScriptBlock(System.Web.UI.Control,
System.Type, string, string, bool)' cannot be accessed with an instance
reference; qualify it with a type name instead
[Code]....
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Sep 1, 2010
This is the first time I've come across this kind of problem before and I'm having trouble approaching it.
I have a swf developed by someone else that posts an image and I have to create a handler of some kind to capture it, name it, then upload it to a directory. I've tried a couple ways and nothing is working.
this is a quick an dirty approach, just an aspx file
<%@ Page Language="C#" %>
<%@ Import Namespace="Components" %>
<%@ Import Namespace="System.IO" %>
<script runat="server">
public partial class upload : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string uploadDirectory;
uploadDirectory = Server.MapPath(@"images/");
string imageName = "image.jpg";
string uploadPath = uploadDirectory + imageName;
//FileUpload imageUpload = new FileUpload();
// Get the data from the POST array
string Email = Request["email"];
HttpPostedFile imageFile = _context.Request.Files["image"];
imageFile.SaveAs(uploadPath);
}
}
</script>
this is another approach using a handler.
<%@ WebHandler Language="C#" %>
using System.IO;
using System.Web;
using System.Web.Configuration;
using System.Web.IHttpHandler;
public class Uploader : IHttpHandler.i
{
public void ProcessRequest( HttpContext _context )
{
string uploadDirectory;
uploadDirectory = Path.Combine(_context.Request.PhysicalApplicationPath, @"images");
//uploadDirectory = Server.MapPath(@"images/");
string imageName = "image.jpg";
string uploadPath = uploadDirectory + imageName;
//FileUpload imageUpload = new FileUpload();
// Get the data from the POST array
string Email = _context.Request["email"];
HttpPostedFile imageFile = _context.Request.Files["image"];
imageFile.SaveAs(uploadPath);
}
}
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Sep 28, 2010
I've been looking for a way to achieve this behavior and I found this sample project.
The trick in this project is that it changes the form target to an iframe created on the fly.
So far so good, I can get the byte[] on the server-side. But I need to change an image preview after the file is uploaded.
How can I get the iframe to update the main page? Would I have to save it on a file on the disk, make a javascript callback to change the image url? Is there another way to do this? What's recommended?
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Dec 16, 2010
I'm using the ajax asyncfileupload plugin to upload files to my server and it works fine for the first file upload but if I try to upload another file before refreshing it throws the exception "Unhandled Exception: $common is undefined".
If I add 'location.reload()' to my UploadComplete javascript method it fixes it but obviously this isn't ideal. Does anyone know how to fix this?
[Code]....
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Sep 23, 2010
I am uploading an image with AsyncFileUpload, it works well, but i want to show to the user the image which him just uploaded, but i am having troubles to make that work.I have tried the OnClientUploadComplete event which receive sender and args paramenters, but the second paramenter only have the file name (without relative url), lenght, but not the file name after saved on the server.I also tried ScriptManager.RegisterClientScriptBlock and call my own function in order to pass the url, but for some reason i can't select the img control with jquery, seems like that peace of code is executing in another instance of the page... not sure.
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May 10, 2010
I'm able to upload and read any excel file to my server prior 2007, when I try an 07 Excel file, i'm getting the following error message:
'microsoft.ace.oledb.12.0' provider is not registered on the local machine'
do I need anything specail on the web server to allow for Excel 07 files? I'm running IIS6 and a Win 2003 server
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Mar 6, 2010
[Code]....
and i found it, here http://forums.asp.net/p/1480079/3451771.aspxi can fairly easily code for a general dbase (name, address, etc..)my question here with this code is...where does my dbase info go?
my dbase info
dbase name = files
tablename = fileTable
column names = fileOne, fileTwo, fileThree
the file upload object is called "fileupload1" and this all goes with a "submit" button
also, that is pretty much for one file, what if the user is uploading more than one file? do i just add more if/then statements, one for each fileupload object?
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Nov 4, 2010
I AM Using:
Microsoft Visual Web Developer Express 2010
My Development Server has:
Windows 7 Home Premium 64 Bit
IIS 7.5
ASP.Net 4.0
When I attempt to upload 1 file under 4mb, everything works wonderful When I attempt to upload 1, 2 or 3 files with a total size under 4mb, everything works wonderful When I attempt to upload 1 file, over 4mb or When I attempt to upload 1, 2, or 3 files that total over 4mb, a problem arises! And Continue to read and not assume it's just my Web.Config file, for I did attempt to set the maximum upload size to higher than 4mb, a copy of my Web.Config is included below!
Here is my Problem:
I have a need to upload 3 Files, 1 File being a .jpg file and the other 2 files will be .mp3 files. If I try to upload 1 file that is over 4mb or if the sum of the 3 files is over 4mb, I get a> The Regular Debug Message:
Maximum request length exceeded.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Maximum request length exceeded.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[Code].....
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Mar 10, 2010
i installed the ASPNETFLASH.NET2 components from [URL] site but i want to bind this component from xml file
coz i need full control ,i want to be able add flash in xml file and display them in the flash component
and here is the code
[Code]....
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Oct 14, 2013
I was trying to embed a flash file onto my webpage and i achieved it by using <object> tag but i am not able to fix it proper way.so provide me suitable example or tool for embed flash file into our websites.
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Jan 20, 2010
I creating a page where our clients can view advertising images and then able to download the images in different file formats. So I need the images and the different download types all saved into the same row in the database so that when I go to display them on the page when they select a picture the right download links will be there. So here where my problem comes in, I don't know how to code it so that I can insert mulitiple file paths into the database at once. The images are saved in a table called images. The downloads are saved in a table called Image Downloads.
Here is the code for the page I have it coded to submit the images to the database but not sure how to add the rest. I have got three different sql datasources for each table not sure if that's the way to go.
[Code]....
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Sep 16, 2010
I'm using the new Aurigma Image Uploader Flash control, and creating sample pages works great. However, when I drop this control onto an existing page on my existing site, it doesn't work. I can only suspect something in the masterpage or something else on the page is messing with it.
POST http://localhost:15361/myaccount/placead/new.aspx?postFiles=1 HTTP/1.1
Host: localhost:15361
Connection: keep-alive
Referer: http://localhost:15361/WebResource.axd?d=lAdTukuIRYXXlkVPS6yEQZdE0ZRhHxifFcDrPbzU_MDuk0OznXELaqd3rcUkbR18raDHqf4pWx6gUcGn391SmV3WbAt2TQUplpFdDsAU-K_ZPuSQ_dytDj992Foht1WO0&t=634202353399418554
Content-Length: 891463
x-preprocess-required: true
[code]...
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Jan 31, 2010
inserting a .swf or flash files in visual basic asp.net give me coding sample or procedure or a link to inserting a flash files in my web form in vb asp.net
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May 7, 2015
I need a cross browser solution to upload multiple files without using Flash or HTML5 in ASP.Net
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Oct 22, 2010
I'm using AsyncFileUpload, when i upload a file all works fine, but when upload finish, i want to upload another file with the same control, but not work, always enter in the uploadError event, i dont know why. ¿What can i do for reset the control?
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Jun 30, 2012
I used this code to uploading image and insert it to database
string path = Server.MapPath(".") + "../Upload";
string[] validext = { ".jpg", ".gif", ".png", ".rar" };
string ext =
System.IO.Path.GetExtension(AsyncFileUpload1.PostedFile.FileName);
if (Array.IndexOf(validext, ext.ToLower()) < 0)
[Code] ....
My problem is that it didn't insert image name in database it save some unknown Characters in database. So when I want bind my image from database it didn't show image .
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Mar 22, 2010
I'm new to this forum, infact this is the first forum i hav ever joined. I need some help urgently as i'm reaching the deadline of my project.I created an asp.net website, where administrator will upload files to SQL database which is connected to the webpage. From the web page there will be a download link to download those uploaded files. I have been successful in uploading files to the database. But nothing is striking in my mind regarding how to download files directly from database using asp.net C#.
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Jul 4, 2010
I have 2 asp.net sites (site1 and site2). site1 have a directory inside in called images. In images directory there are images. I need to upload files using site2 aspx page, but need to upload them to images folder of site1. how can I do that?
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Apr 8, 2010
I couldn't upload anythink to a server using FileUpload control (access denied exception). I changed permissions for required folder and gave aspnet user full access. It did not work (I got access denied exception). Than I changed permissions again and gave full access to all users on the machine - now upload works. As far as I understand, it makes my site vulnerable and I should give full access to only one user. Could anyone tell me which user IIS 7.5 uses?
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Sep 27, 2010
im hope i can make sense to this post cause i dont have an idea where to begin :-) I have some files upload code so the user can upload files to the server (it can be 1 or 5 or 20 files). the code is working fine, and the files uploading to the folder on the server. The problem is, that after the files uploads i need to display to the user some textboxes to every file (like: number of copies, if its color or b/w, the print size etc). is there some way, after the files is uploaded, to show the user the name of the files and for each file name to display some textboxes (like: to count the number of files and then display the names and few same textboxes for each file),
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Feb 23, 2011
I am trying to upload Videos to YouTube API... It's working fine if my video file is < 4 MB..
Below is my code.. i think the issue is related to Request Length?!
Update: the error i am getting is "Cannot close stream until all bytes are written."
Upload Code.YouTubeRequestSettings settings = new YouTubeRequestSettings("App NAME", "DeveloperKEY", "UserName", "Password");
YouTubeRequest request = new YouTubeRequest(settings); [code]....
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