Web Forms :: Upload A File To A Remote Destination Without First Uploading It To Server
Jun 13, 2010
I have an interesting challenge. My application uses a third party's services and one of the functions is to upload video files to Amazon S3. The current solution I've implemented uses a simple form with a POST action set to a URL on Amazon's system. The
issue I have is that because the form posts to Amazon, I have no way of doing any type validations before the user clicks to upload the file i.e. checking file type, file size, etc.
However, I really do NOT want to set up my logic so that the file is first uploaded to my server then to Amazon because these are huge files and we'll end up using costly bandwidth on both ends -- our server and Amazon S3.
P.S. To be perfectly honest, I'm not that pleased with the current solution where it's a simple HTML form with a simple post to Amazon. However, because Amazon is so picky about all the hidden fields in my asp.net page, I had to strip everything off the
page -- including form runat"server" because the minute I have this, I end up with a hidden field for ViewState -- even if I completely turn off ViewState. There's always something left as a hidden field and Amazon was generating an error because of this.
Ideally, I'd love to be able to do an HttpWebRequest in code behind so that I can have the functions of a web form back and do some pre-upload work but I'm not sure how to upload the file to a remote destination without putting the file on my server first.
i use to upload a photo to a server this piece of code:
uplTheFile.PostedFile.SaveAs(Path);
But the Path can't be relative (like ~\Photos\image.jpg) .
I was thinking of getting the location of the .aspx file from where i upload the image and attach \Photos\image.jpg to it, but i don't know how to get the address (location ) of my .aspx page on the server .
I'd like to allow users to upload a .pdf file via the file upload control (if that's the best method), save the file to the db and then retrieve it so they can click on a link and open the .pdf they've uploaded. I've been looking for a tutorial on how to do this but keep running into methods of saving the file directly on the server in a directory, not in SQL server (using Linq and VB by the way)
I had this one working a while back i try to upload file to my root folder it works locally but when i try it from my website i get the following error: exception details: system.bet .webexception. unable to connect to the remote server
the code bomb at the following line
requestStream = uploadRequest.GetRequestStream() 'This is where the exception occurs fileStream = File.Open(localFile, FileMode.Open) [code]....
My project is running with VSS..I have it's IP Address to connect it. There is a folder "DataShare" in VSS for my project. My task is, i need to upload a document(*.doc) from my Local drive to VSS Folder "DataShare" with FileUpload Control How should i do this?
I am developing a application where files can be uploaded to staging area. and after saving to staging area a email confirmation is send.
After browzing for the file from local drive ,user gives a email id and click upload button ,then file should be saved to staging area. and then aconfirmation email should be sent to email id entered. we are using Exchange server to send emails.
I've dug around in the SDK and managed to connect to my instance of S3, go into my bucket and create an empty file, but can't figure out how to take a file from my computer and upload it. If I have dragged a file upload control onto the designer surface how do I set the properties for it in the code behind?(If I absolutely need to have a 3rd party uploader which should I use). Here is the code I have so far.
static string bucketName = "myBucket"; static string keyName = "sampleKey"; static AmazonS3 client; protected void Page_Load(object sender, EventArgs e) { string accessKeyID = System.Configuration.ConfigurationManager.AppSettings["AWSAccessKey"]; string secretAccessKeyID = System.Configuration.ConfigurationManager.AppSettings["AWSSecretKey"]; using (client = Amazon.AWSClientFactory.CreateAmazonS3Client(accessKeyID, secretAccessKeyID)) { // simple object put PutObjectRequest request = new PutObjectRequest(); request.WithContentBody("this is a test") .WithBucketName(bucketName) .WithKey(keyName); S3Response response = client.PutObject(request); response.Dispose(); // put a more complex object with some metadata and http headers. PutObjectRequest titledRequest = new PutObjectRequest(); titledRequest.WithMetaData("title", "the title") .WithContentBody("this object has a title") .WithBucketName(bucketName) .WithKey(keyName); using (S3Response responseWithMetadata = client.PutObject(request)) { WebHeaderCollection headers = response.Headers; foreach (string key in headers.Keys) { Console.WriteLine("Response Header: {0}, Value: {1}", key, headers.Get(key)); } } } }
I have programmed a script to upload image files from users computer to my server. It works fine for up to about 4MB files, larger have the 'connection reset' error which I believe can be resolved easily in the web.config file.
Anyway, I would like to show a status bar to tell the user how much of the file has been uploaded so they don't try repeatedly clicking upload button thinking nothings working -
I am getting an error when i am uploading an image with the asynchronous file upload the error is " Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.
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.Resources.MissingManifestResourceException: Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.
I'm trying to force a large (200+ MB) file to download that's on a remote server. The problem is that I can't use the "WriteFile()" function, since I'm not using a virtual path. Then, when I try:
while uploading the file on the local host it works fine.but the same coding does not work on the webserver. is there anything to do with the foldr read and write permissions.i m using the server.map for finding the path of the browsed file.
I have deployed my site in Win 2003 server. In this, it copies file from Another server and copies it in local. It is working with my local computer, but not in the server i have deployed. I hope access credentials may be the first reason. But are there any other reasons for this.
I have a page which uploads a file from server A to server B. The user first uploads the file to server A, where it's saved into a diretory, then once the file is safely stored there, I'm transferring it to a second server, server B, using the following code:
[code]....
So, in summary, the only difference I can see between the working case and the non-working case is the server that'ssending the file.
I am trying to export images from my SQL server to SSIS's Flat file destination but keep getting the same error: Error 0xc0208030: Data Flow Task: The data type for "input column "image_full" (105)" is DT_IMAGE, which is not supported. Use DT_TEXT or DT_NTEXT instead and convert the data from, or to, DT_IMAGE using the data conversion component. (SQL Server Import and Export Wizard) The data type is IMAGE in SQL DB. I would like to export the image and save the same in local folder. Is their any way to perform this task using SSIS flat file destination? What is the best and easiest way to do this? What format should I be exporting to?
I was able to upload 4MB size audio file in my database. The problem occurred when I tried to upload 90MB .mp3 file to MS-SQL Server 2005. only 4MB is allowed by default. I increased the default size in the web config to 195MB,and it's still not working. The following code depicts the size that I currently set in the web config.
i am doing an task about uploading & retrive video file in asp.net. first of all tell me How Can we Upload Video files In sql server? then second one is How Can we displays that uploaded video files in my web page?
What I am doing seems to be saving the Excel file in a text format. All I am trying to do is save the Excel file (xls) on my web server. Below is the code that "fetches" it now but doesn't save it in the proper format.
With the ajax file uploader, would it be possible to check the size of the image before uploading?Currently, it uploads the file to the server and then lets me know that it's bigger than the limit size.
we have windows xp operating system, here we installed my website that will be stored in the location(c://programFiles/) if we run the sample after executing ouputfile(scan.pdf)image file will be stored in C://inetpubs/ftproot/(if file transfer type is FTP). if file transfer type is HTTP then the image file is transfered to the location:c://programFiles/website1/app-data. If we install the same website in windows 2007 64 bit os website will be stored at c://programfile x(86)/. if we run the sample through ftp it is running fine and file is stored at FTP folder. but if we run the same application through HTTP, file is not transferring to destination folder(c://programFiles x(86)/website1/app-data.)
I am using VB to upload image files to my server but am having problems. How can I use the ContentType to filter only image files? This is my code for my upload button which does not seem to be working. I can only upload bmp files:
[Code]....
Also, how can I show the user the image they uploade
I am downloading file from remote server in page load using content disposition. After downloading the file i am trying show some other controls in the page. But that controls are showing asp.net .
I have two folders in my asp.net web application in which I create new folders programmaticaly. The entire solution is under VSS source control. I was not able to manipulate these two folders programmably. For that, I gave {MACHINE}ASPNET user account full control over these two folders. Still, the "access denied to the path" error was coming. I saw that these entire folders were marked readonly. I tried to uncheck Readonly from explorer but not successfull, readonly check does not get removed. Also, if I copy files using method, the destinationn copied file becomes readonly. I have also tried File.SetAttributes (path,FileAttributes.Normal); but no success. How can I make the copied file not READONLY?
