Architecture :: File Upload In Web Form?
Sep 28, 2010How does file upload work on a web farm? does the file you upload replicate on all the servers ?
View 6 RepliesHow does file upload work on a web farm? does the file you upload replicate on all the servers ?
View 6 RepliesI have a scenario which I am looking at where large files which are about 30-40 MB are being FTPed to a server. I am looking at creating a .net screen with the FTP control to upload the file to a Unix server. I need to know how much of a performance hit it is to work with such large files, is it a feasible option in this scenario? I might have to create a .net component for the same and call from ASP application. Is it doable?
View 3 RepliesI have this scenario. I have an application running in a webserver (in DMZ). End users upload documents to the webserver. right now all the documents get stored in the webserver itself. I would like to store all the docs in the database server.
What is the best way to store the documents, move it from webserver to db server after they uplocaded or directly upload to the db server ?.
And, if I have to upload directly to the db server could someone help me how to mangae the connection to the db server and credentials..?
I have an asp.net application running on a web farm that allows users to upload files and download them later via link to that file. Currently, I use Windows DFS to replicate the local IIS directory where the files are stored across the web farm servers. However, as this solution does not scale out, I want to implement a more scalable solution by partitioning the documents. Specifically, say I set up multiple file storage servers (Fs1, Fs2, Fs3, etc.) on the network. Further, let's say I change my upload page to save the uploaded file to one of the file storage servers on the local LAN (based on some logic). I assume so far I am safe with ASP.NET doing this much assuming I have the correct permission for the ASP.NET process ID. The question I have is withregards to download links. When a user gets served a download link to their document (e.g. http://www.testco.com/data/doc1.txt) is there a way for me to "intercept" that HTTP request and underneath the coversserve the doc1.txt from the file storage server (e.g. Fs2) it resides
View 5 RepliesI'm not sure where this should go (I don't know whether it's a database problem, or a code problem), but I think it's a code problem, so I'm posting here.
I'm working with a database that is storing images (actually, it's a modified version of the AdventureWorks database from Microsoft), and I'm creating a form that will let you upload a file. I've got a business object based on the table that I'm using (Production.ProductPhoto) and I'm using two stored procedures to either get (Production.ProductPhoto_Get) or add (Production.ProductPhoto_Add) an entry from/to the table. The image is being stored as a varbinary field in the database, and a Byte() in my business object.
The problem I'm having is that when I'm adding a new entry and uploading a file, the length of the file uploaded is correct (so I assume everything is going smoothly), and it gets passed along to my ProductPhotoProvider DAL class where I create a DbCommand and add the parameters for my stored procedure. The information is all added to the database successfully, and I'm returned the identity of the new entry as expected -- however, when I try to read this image back, it seems that the length is 1. I've put in break points and stepped through everything, and I don't know what's going on.
I think that I know my ProductPhotoProvider class is at least reading things correctly -- I can display other images from the database (that came with the database, that is) just fine. Mine just all come back with a length of 1.
I'm just hoping someone knows what the hell I'm talking about; I have a lot of programming experience, but this is my first major venture into ASP.NET. I have no idea which parts of my code are relevant, so I'll just post my Add and Lookup functions for now?!
[Code]....
My ProductPhotoProvider class is based off of an abstract class called AbstractDALProvider (which I can also provide if needed). I can provide the rest of my project, if needed, too.
Oh, and for good measure: I was told that when you used to store images in Microsoft Access, there was some sort of problem when retrieving the data and you'd have to strip the first 72 bytes of data from it, or something. I can only assume that this is not a problem here, because I have no problem displaying other photos that were not created by me.
As title, how to specify additional form parameters when uploading file using webclient?
View 1 RepliesHow can i upload a file using fileupload control from an asp.net form and store it in systems harddisk and just have a tag of that file in sql database... and also how to retirve that file for download.
View 8 Repliesi am using jquery form plugin for file upload . i am not able to get file in the controller . what could be wrong.
public string CreateOrganizationMeta()
{
foreach (string file in Request.Files)
[code]....
This works in other browsers but not in chrome. I am trying to allow users to upload large files and have an ajax call to update them on the progress of the file upload.
So a unique ID is generated on the client side and added to the action of the form before sending. Then the form is submitted (form only contains a file upload input) and an ajax call is made to get the progress of the upload. The ajax call goes to another page and uses the ID to lookup the upload.
I am using JQuery 1.5.1. Debugging this and putting something on the error function give me nothing other than "error". Not very helpful. I used Chrome's debugger and it just says failed to load resource xxxx.aspx. xxx.aspx is the URL i needed. Turns out that there seems to be some sort of conflict between the form and the ajax call.
I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
how to upload and save files to oracle database, and view file using C# .net and can upload one or more files in one webform.
View 1 RepliesI want to upload files to the web servers from the client machines.
Can i upload a file on a network share folder using file upload control?
I would like to create a share folder on a file server sitting next to the web server. If i upload the file from the network share folder instead of uploading it from the client machine does it make any difference?
Will the file be stored in a temporary location before copying to the final destination? Where will be the file stored in this case of uploading it from share folder?
I am using the File Uploader to upload files. It is working fine. But I receive the page can not be displayed when I try to upload a file>4Mb in size.
View 1 Repliesi have problem in uploading 2gb video file using file upload control in asp.net, i have limit the maximum file size in web config file then also it shows error any remedy for that...
View 1 RepliesI want to upload a file without using the file upload control in asp.net.
View 1 RepliesI have a file upload control on my page with a regular expression validator that handles the file format.
Users can upload files but I want the maximum WIDTH size to be 500px.
If any bigger I need to show a message advising the width is to great and stops them.
Im using a file uploader to upoad files to a folder used for upload.But the problem is this folder is a linux folder. I have made it a shared folder so that I can access from windows by samba. So, file transfer is successful when I'm using os but when I try to upload something from my websites uploader to this folder, this process is not successful. I have given all permissions to this folder.Don't know whats the problem.I have used both type of slashes for directory but still it is not successful.
View 4 RepliesThe Dumps data are in the Excel file. Now I want o upload the data to sql server 2005(which are in web server) from client pc (from browser). What will be the best way to do so?
I can know how to upload data from excel to sql server 2005 if both are in the same computer.
The user can write articles and upload images related to that article. Let's say that there is a form that collect the article text and, under it, there is a FileUpload control for images. Here, I have a question. What if the user has uploaded some images and then he closed the browser, before submitting, cancelling the operation? the images have been uploaded to the server wasting space!
one solution I've figured out is to store "ImageInfo"s in a list, and store the list in the Session object. And when the user submit the article, the images in the list should be marked as "related" and then inserted. and in the Session_End event I should delete every image does not have the "related" mark.
I need to figure out a way to prevent users from uploading a couple file types in my vb.net page. How can I prevent users from uploading .msg or .gifs during a file upload?
View 3 RepliesI have a file upload area and would like to stop the pop-up box area from closing when the user has uploaded their file. Anyone know how I can do this ? this is the code:
[code]...
Anyone know how to use the file upload control to upload word docs etc
View 3 Repliesi am trying to upload files through the ASP.NET File Upload control.
Every thing is working fine, except for the fact that when i try to upload the file on the server i am getting an error: (probably some authorization exception).
do i need to give some rights to the upload up there on the server. If so then for which account and do i need to restart the server after giving rights?
I have an asp.net panel having various controls including gridview. I have converted this panel into pdf and attached it as an email attachment using memory stream. Everything is working fine. Now I have an File upload control outside panel through which I have to attach a file and send it in mail along with the already attached panel. But I am unable to figure out how to do it.
View 1 Repliesi am using file upload control to upload the files in asp.net with vb.net as code behind. am storing the files in my local drive. my doubt is, how shall i read those file using asp.net application.
View 1 Replies