I have a webpage on this webpage I need to find the directory name on the server. Can someone explain to me how to does this or better yet show me some source code or reference me to a project with some source code that I can download.
Rick Strahl wrote a great article called Making Sense of ASP.Net paths that you should definitely read.
The starting directory name of your webpages on the server is
HttpContext.Current.Request.PhysicalApplicationPath
Related
I am having trouble accessing information on the server my website it on. As the website was originally programmed with VB.Net, I cannot change the language without having to completely reboot the website. The way the website and server are configured, I can only use ASP.Net and VB.Net.
I am needing to add a section where they can create folders, edit folder names, and upload pictures and text documents on the server through the public website. I tried using parts of the FileIO, Server, and Http that should have worked, but none of them did. Most of my research is about local files and text documents.
I have not been able to find any information that works. Can someone help me? Thank you.
Firstly, creating a virtual directory in ISS mapped to somewhere on your disk would be a good start. This way you have a separate folder for user data in a folder with write access (make sure IIS has write access to the folder!), and the folder is not affected by website deployments.
Secondly, you might need to resolve absolute path for most of the System.IO.File calls. See How to convert a relative path to an absolute path in a Windows application?, just you will need to convert this code to VB.
I am very new with ASP.NET. I need help understanding the basic procedures of how a developer publishes their site to their hosting server, and then once its compiled and published, how does another developer (someone who does not have the original files), edit some of the code behind files.
For example, Developer A creates a site, uploads it to the server and it works great. We hire a new remote developer (Developer B) and he needs to work on a .cs file, does he need to get a copy of the entire site, to his local machine? if so, does he need to reverse the compiling process to get thos .cs files back?
I am a PHP developer, and since theres no compiling needed, I dont worry about .dlls nor about compiling at all. This would truly help me understand ASP.NET with the hopes that it can also help others like me.
Please help. Thank you in advance.
You do not need a copy of the entire site.
But you need the basic struct of an asp.net site, and what resource you may need to run this individual page.
The minimal basic struct of an asp.net site is this two directories (and the content of them - if any)
App_Code
Bin
together with the web.config that is probably needs some changes to run to the remote developer.
Now some simple logic.
If a page have css, javascript and other files you need them too
If a page need connection to some database, you need that too
In the bin directory you may only give the dlls/libraries that this individual page use (if any)
If the page have links to other pages, or post to other pages, or need ajax call from other pages you need them too.
If some one change some functions on the dll files, you must give the update to the remote developer so he can adapt his code.
After the update he can upload the aspx + cs file on the server.
I'm trying to take a path from FileUpload tool in asp.net, but it seems impossible.
another thing,
I want to select a folder to save there my files, but i cannot find any tool that similar to
Directory Browsing .
can someone help me please?
It is fairly easy to upload a file using web form. But I need to accomplish this through DLL.
I have classic ASP page with file upload form and I need to create an object that handles the uploaded file from customer and save the file to the server. What would be the best way to approach this? I have been digging and came across Web.HttpPostedFile and HttpWebRequest. but I don't know which route to take.
Also, I am a bit confused about how to pass the uploaded file to DLL so my class can upload and manipulate the file. is there any sample code for this?
Thanks for any help or advice.
This question doesn't make much sense, as you kind of asking "I have old car's parts and I need to assemble one by using a wheel". What? That doesn't make sense.
A dll is a container for some code. You do not use a container per se to upload a file. You should search for "classic asp upload file sample", find a solution, give it a try and come back with a specific problem.
I also noticed HTTPS tag, the idea with S, is that you don't care whether it is secure or not from the programming perspective. If you are able to use HTTP, it is trivial to upload files to HTTPS - just change the URL in the UI. The server code itself wouldn't change. What will change is the server hosting configuration, you would have to add certificate details.
I have an application with 2 directories (books and export).
If we create a book or a page of a book in the application a directory is added with the id of the page (this is for uploading resources).
If we delete a page, the page (and it's directory) is removed from the database and the filesystem.
However this resulted in a session loss (even an application restart). I've looked up some thing on google and found the following link.
It seems to be a problem in ASP.NET 2.0 (and 3.5).
We are now thinking about writing a service that will clean up the directories at night.
But there has got to be another solution for this no?
Oh and putting the directory outside the virtual directory is not an option.
Try disabling the monitoring of File System. This will prevent your session alive.
This article may be usefull for you.
Oh and putting the directory outside
the virtual directory is not an
option.
Putting the directory outside the virtual directory is the only solution I found (so far). What you can do, is to create a link (junction) in the file system so that the directory appears to be inside the virtual directory, e.g:
Our web site (virtual directory) is located at C:\projectX\website
the data directory (where we create/delete files and folders) is located at C:\projectX\data
then we create a link which makes the data folder available as C:\projectX\website\data
The link is created using the program Linkd.exe (available in the windows resource kit), with the following command:
linkd c:\projectX\website\data c:\projectX\data
Now c:\projectX\website\data is a link/junction which points to the real data directory. You can work with the link as if it were a physical directory.
E.g. in your web site you can access it using this code:
Server.MapPath("~/data")
And you can also used the windows file explorer and browse to C:\projectX\website\data. It appears just like a real directory.
There seems to be a supported hotfix which achieves the same as the article Sachin mentioned (turn off the file change notifications in a web site).
Check this article in the microsoft KB for more information.
But since you mentioned in a comment, that you do not have access to the server, I guess this will also not help in your case.
For storing data files that are frequently updated, created and deleted you need to use App_Data folder in the root of the web site. MSDN for App_Data folder states:
Contains application data files
including MDF files, XML files, as
well as other data store files. The
App_Data folder is used by ASP.NET 2.0
to store an application's local
database, which can be used for
maintaining membership and role
information.
Also check Q&A section for App_Data folder usage: App_Data folder question
I had the same problem. The solution is to externalize the session handling by using the ASP.Net State service. The only draw back is that every object you place in the session needs to be serializable, as it is transferred to the state service and back.
I currently do not have the possibility to provide further links, but google will help you, now that you know what to search for.