I can't seem to find any examples of downloading multiple files from a URL.
I have a URL lets say www.example.com/Document and I want to download all the files in that URL is that possible? or do I need to provide the name of each file in that URL? All the files would download to a folder specified here in the code.
Any examples of this would be great, this would be done by clicking a Download button in WPF.
The way I did this was to create a ZIP file and have all the files in there. You can either pre create a ZIP file and download or you can create the ZIP file as it downloads. I had to write my own software to do that but it does work.
Related
I want to download a single file in a remote Zip file that is in the cloud. The zip file is too large for me to download as a whole therefore I have decided to look for a way to download only a single file(XML) that I need within the archive. I have tried and Tested a webclient and web request but it downloads the whole zip file(also too large file for these technuques usually fails). I'm eyeing the SharpZipLib but I dont know how to use it. Is it the right library I should use or there are other available ones I can get and test. Thank you so much.
I need something like the FileUpload control in asp.net that will allow the user to browse for a folder and enter a file name of a new file to upload.
From what I've seen FileUpload requires a file to be selected. It seems that html input type="file" has the same requirement.
Thanks!
Selecting an entire folder is not possible in FileUploadControl as it is meant for a single file. Although you can have a Multi File Selection. Multiple File Upload User Control
C# has build-in FTPrequest class where you can create folders, upload files, delete files etc.
If you want to upload folders from a webpage, you cannot use this technology in the browser, then you will have to use a rich-client such as Java, Flash or similar plugin.
If you can provide the users with a Windows or Mac client, you can use C# (either .NET or Mono) for the FTP transfer.
ZIP files arent a problem for ASP.net nor C#, but you still only upload 1 file (zip-archive) and then its up to the server to unzip it using eg. C#. Look at 7-Zip which is opensource, then you might get some ideas too.
You could also just try and use the build-in lib for it (compression):
http://www.eggheadcafe.com/community/csharp/2/10050636/how-to-compress-and-decompress-file-in-c.aspx
or try this link...
http://www.aurigma.com/docs/iu7/uploading-folders-in-aspnet.htm
I am using Cefsharp's DownloadHandler to implement a download functionality in WinForms. I am able to cancel the downloading file using callback.Cancel() method in OnDownloadUpdated() method. The problem is that the partially downloaded file is not deleted. I am storing the downloaded files in the "Downloads" folder.
You can just remove the file by yourself after canceling the download. One of the parameters in the OnDownloadUpdated method is downloadItem which contains the full path of the file.
Something like this:
System.IO.File.Delete(downloadItem.FullPath);
my users upload their files in my Web Application and the application saves their files in the server that has the most free space. The result is that one folder of a user may contain multiple files that are saved in multiple servers.
Now i want to give my users the option to download their whole folder as a ZIP file.
Can somebody provide an appropriate namespace or guidance of what will be the best practice to achieve this functionality?
The application is written in C# .NET. So far i saw
1) http://msdn.microsoft.com/en-us/library/system.io.packaging.aspx
together with
2) http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx
Am i looking at the right direction?
Let say a user has his files over 3 servers named server1,server3 and server6
point 1. You must have those locations somewhere? right?
now suppose server7 needs to pack those files into 1 zip and stream to the client.
You will need to download all those files to server7 and then pack those files to zip archive.
To download the files you can use webrequest method. Hope this is clear.
YOU WILL NEED TO DOWNLOAD THE FILES TO A SINGLE LOCATION BEFORE ZIPPING THEM, there is no shortcut over this.
I am writing a website to consolidate a bunch of XML files with data into one MySQL database. I need to have a way to allow users to select a directory on their computer that contains a bunch of xml files. The site then reads each of those files and takes care of consolidating the information.
Is there a simple way (like the default open file dialog for win forms and wpf) to bring up a file dialog on a users computer, let the user pick a directory, and then be able to read the xml files in the selected directory? Would I have to upload them to the site temporarily first? Or could I just access them on the users computer?
Thanks!!
You can't access files from a webserver directly. You would need to write an ActiveX Control if you really don't find another way.
The standard conform way it just uploading one or more files with the browser fileupload:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.fileupload.aspx
I would suggest that the user should zip the files and just upload the zip file.
There are some hacks - but I don't think it fits:
http://the-stickman.com/web-development/javascript/upload-multiple-files-with-a-single-file-element/
http://dotnetslackers.com/articles/aspnet/Upload_multiple_files_using_the_HtmlInputFile_control.aspx
I think you have to have a web dialog to upload the files to a temp location like you already mentioned and do the consolidation there before committing to your database. Or, maybe you can do the consolidation in JavaScript in the user's browser instance.